{"title":"Preamplifier","description":"\u003cp\u003e\u003cspan\u003eThe Preamp: The Command Center of your Stereo System which has a major influence on how your system sounds. Preamp select which audio source to listen to and provide you with useful features like tone controls. Most stereo preamps have fewer features than surround-sound processors, placing more emphasis on sound quality and analog audio performance. Audiophile preamps have both balanced and unbalanced analog inputs. If your power amps have balanced inputs, you will get the most benefit by choosing a preamp with balanced outputs. Others also include one or more digital inputs, and still others also feature a phono input (a special type of input that accepts the direct input from a turntable for playing vinyl albums).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e💝 Worldwide Free Delivery, 18 Months Warranty\u003c\/p\u003e","products":[{"product_id":"zh3-dac-headphone-amp-preamp","title":"Fosi Audio ZH3 DAC Headphone Amp","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAn all-in-one desktop HiFi DAC\/headphone amp\/preamp\u003c\/strong\u003e: With premium chipsets and self-developed fully balanced circuitry, low noise and low distortion. Perfect for HiFi headphones or active speakers, it's the ultimate desktop audio solution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Sound Quality\u003c\/strong\u003e: Premium chipset with AKM4493SEQ DAC, XMOS XU316 processor, and four OPA1612 amps supports up to PCM 768kHz\/32bit \u0026amp; DSD512. A self-developed dual-power balanced amp circuit with multiple ultra-low-noise LDOs and capacitors keeps noise as low as 1.9μV.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Output Power\u003c\/strong\u003e: Equipped with both 6.35mm single-ended (640mW@32Ω x2) and 4.4mm balanced (2570mW@32Ω x2) outputs. The 3-level gain switch supports headphones ranging from 16Ω to 300Ω, making it perfect for almost in-ears and over-ear headphones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile \u0026amp; Flexible\u003c\/strong\u003e: With coaxial, optical, USB, and RCA inputs, plus 4.4mm, 6.35mm, RCA, and XLR outputs, it connects to diverse audio sources and devices. Functions as a DAC\/amp\/preamp for desktop HiFi. UAC mode switching ensures full compatibility with game consoles for both music and gaming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRich Customization\u003c\/strong\u003e: Features bass\/treble EQ adjustments and 6 filter types, including Bypass mode and two swappable op-amps, allowing you to customize the sound to match your preference. All functions are integrated into the screen for a clean, premium look that continues the Z-Series design language.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773273489626,"sku":"ZH3-US-SH","price":199.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/001_63ba6be5-bb88-4fd9-a404-2fc2b1d6881d.jpg?v=1776428558"},{"product_id":"fosi-audio-t20x-mkii","title":"Fosi Audio T20X MKII Vacuum Tube Amplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Performance Chip, Outstanding Sound Quality \u003c\/strong\u003e\u003cbr\u003eThe T20X MKII Bluetooth amplifier features the TI TPA3255 high-performance digital amplifier chip, delivering a maximum output power of 150W×2@4Ω with a signal-to-noise ratio (SNR) of ≥102dB and a frequency response of 20Hz-20kHz(±1.2dB). Equipped with the QCC3031 Bluetooth chip, it supports Bluetooth 5.1 lossless transmission with a range of ≥15m (barrier-free) and compatibility with multiple transmission formats such as SBC\/AAC\/aptX\/aptX HD\/aptX LL, ensuring stable and high-quality wireless audio transmission. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassic Vacuum Tubes, Warm Sound Enjoyment \u003c\/strong\u003e\u003cbr\u003ePowered by Soviet 6Ж2П vacuum tubes, it delivers a unique warm and rich sound. The vacuum tubes feature a glass enclosure and precision internal structure, effectively enhancing the sound quality and depth, providing a true-to-life listening experience with HI-FI quality. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenient Bluetooth Connection, Stable Wireless Transmission \u003c\/strong\u003e\u003cbr\u003eSupporting Bluetooth 5.1 lossless transmission with ultra-low latency (≤50ms) and exceptional clarity, it ensures audio and video synchronization for a smooth and natural wireless listening experience. The QCC3031 Bluetooth chip offers superior connection stability, reducing signal interference and transmission loss to guarantee the integrity and accuracy of audio data. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design, Suitable for Various Scenarios\u003c\/strong\u003e \u003cbr\u003eWith compact dimensions of 122×137×41mm and a weight of only 1060g, it is suitable for home use, desktops, and other scenarios. Its small size and powerful performance make it ideal for both home theater systems and desktop audio setups, providing high-quality audio support. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Interfaces, Flexible Connections and Expansion\u003c\/strong\u003e\u003cbr\u003eIt is equipped with a variety of input and output interfaces, including 1 Bluetooth input (QCC3031 chip), 1 RCA input, 1 passive speaker output (4-8Ω), 1 3.5mm headphone output, 1 pre-output (pre-out), and 1 power supply input (DC24-32V). This allows for compatibility with passive speakers, headphones, and other devices, meeting the needs of different music systems and enabling flexible system configuration. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong data-spm-anchor-id=\"a2g0o.detail.1000023.i5.8839BnEpBnEpWD\"\u003eSpecifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"a-unordered-list a-vertical\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eModel: T20X MKII\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003ePower Adapter: 32V\/5A, DC Input Range: 24-32V\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eHeadphones Output: 16-300Ohm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eTerminating Impedance: 4 Ohm - 8 Ohm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eMAX Power Output: 150W x 2\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eSNR ≥ 102dB\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eAmplifier Chip: TPA3255\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eFrequency Range: 20Hz - 20kHz (±1.2 dB)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eInput Mode: Bluetooth and RCA\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eBluetooth Chip: QCC3031\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eBluetooth Version: 5.1\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eBluetooth Range:≥15m (barrier-free)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eBluetooth Codecs: SBC\/AAC\/aptX\/aptX HD\/aptX LL\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePackage Include:\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eT20X MKII Amplifier x1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e32V 5A Power Supply x1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-spm-anchor-id=\"a2g0o.detail.1000023.i6.8839BnEpBnEpWD\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cspan\u003eUser Manual x1\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773273719002,"sku":"T20XMKII-G-32V-US","price":129.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/142.png?v=1776428559"},{"product_id":"fosi-audio-bluetooth-phono-preamp-for-turntable-phonograph-preamplifier-with-ge5654-vacuum-tube-amplifier-audio-hifi-box-x3-diy","title":"Fosi Audio Box X3 Bluetooth Vacuum Tube Phono Preamp","description":"\u003ch2\u003e\n\u003cstrong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eThe Fosi Audio BOX X3 is a state-of-the-art phono preamp that uses Bluetooth 5.0 5725W tube technology for superior audio quality. This 2-in-1 preamp serves as both an MM turntable preamplifier and a Bluetooth 5.0 preamp, making it an essential component for the modern audiophile\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe tube phono preamp improves the audio quality of your MM turntable by converting the phono signal to a more manageable line level, resulting in better sound and increased volume levels for your home audio system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUpgrade your home audio setup with the BOX X3 Bluetooth 5.0 tube preamplifier. With a 3.5mm line input, easily connect your latest devices for wireless Hi-Fi music streaming to powered speakers. Please note that an amplifier is required for passive speakers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eExperience exceptional sound quality with the BOX X3 phono preamp's ultra-low noise performance. Featuring 5725W vacuum tubes, this preamp produces a clean and warmer sound, allowing for perfect replication of your vinyl records' music. The built-in phono preamp circuitry is designed with high accuracy and conforms precisely to the RIAA standard, so you can enjoy a flawless listening experience every time\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eWhat You Get: BOX X3 mm phono preamp x1, 5725W Vacuum tubes x2, Bluetooth Antenna x1, power adaptor x1, user manual x1. Please note that the BOX X3 preamplifier is a Bluetooth receiver only\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/2_56deef17-3468-4b55-b19e-4fd0c17a7f4c.jpg?v=1745546559\"\u003e\u003c\/h4\u003e\n\u003ch4\u003e\n\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/3_50f3d124-4001-4710-86dd-6388fcd9e757.jpg?v=1745546559\"\u003e\u003cbr\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; max-width: 800px; table-layout: fixed;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 50%;\"\u003e \u003ccol style=\"width: 50%;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBOX X3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Interface\u003c\/td\u003e\n\u003ctd\u003eRCA + 3.5MM AUX + Bluetooth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Interface\u003c\/td\u003e\n\u003ctd\u003eRCA output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003eActive(powered) speakers, Amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003eStandard RIAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e≥ 98dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e0.71 lb\/320g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Dimension\u003c\/td\u003e\n\u003ctd\u003e4.66 inch\/3.85 inch\/1.29 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Input Range\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003eAC 100V - 240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Level\u003c\/td\u003e\n\u003ctd\u003e650 mV @3mV 1kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e12V 1.5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\n\u003cbr\u003eWhat‘s in the box？\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; max-width: 800px; table-layout: fixed;\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width: 50%;\"\u003e\n\u003ccol style=\"width: 50%;\"\u003e\n\u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBox X3 Phono Preamp\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5725 Vacuum Tubes\u003c\/td\u003e\n\u003ctd\u003ex 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12V 1.5A Power Adapter\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser’s Manual\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"display: flex; align-items: center; height: 20px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/7.jpg?v=1638263331\" alt=\"Download\" style=\"width: 30px; height: 30px;\"\u003e \u003ca href=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/BOX_X3_User_Manual.pdf?v=1661567006\"\u003eBOX X3 User Manual\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNotice:BOX X3 is only a preamplifier, not an amplifier, can not be connected with passive speakers directly, If you need to connect BOX X3 with passive speakers, you need to connect it with an amplifier then connect the amplifier with your passive speakers.\u003c\/p\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773277257946,"sku":"BOX-X3+12V","price":79.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/001_ab0b1be4-12d8-49d3-893c-db9548f612fd.jpg?v=1776428583"},{"product_id":"fosi-audio-phono-preamp-for-turntable-preamplifier-mm-phonograph-preamplifier-with-gain-gear-mini-stereo-audio-hi-fi-pre-amplifier-for-record-player-with-dc-12v-power-box-x2","title":"Fosi Audio Box X2 MM Turntable Phono Preamplifier","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-none\"\u003e\n\u003cli\u003e\n\u003cp\u003eTube MM Phono Preamplifier: This Fosi Audio phono preamplifier removes low-frequency noise and ensures clear sound quality by converting phono signals to line-level signals using high-quality components and low-noise integrated circuits. It is designed to safeguard your turntable thanks to its grounding post\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e3 Switchable Gain Modes: You can switch between 3 modes: 39, 42, or 45 dB. High compatibility and customizable control are provided by the adjustable gain levels. Also, it has very good circuitry and entry-level, high-end analog sound\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTube Preamplifier: With a 3.5mm AUX input, it's also a tube preamp. Fosi Audio used high-quality component parts for the design and assemblage of this phono preamplifier. You can enjoy a very warm and smooth sound\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eApplicable Vacuum Tube Model: The compatible vacuum tube models are 6K4, 6J1, 6J4, GE5654, 6AK5, 66, etc. To make changes to your stereo system yourself, simply swap out the vacuum tubes. Consider that distinct tubes produce various sounds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePackage Content: You will get 1 x Box X2 phono preamp, 2 x vacuum tubes, 1 x RCA cable, 1 x power adaptor, and 1 x user manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\n\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/001_4ecf75d1-9bda-492b-b892-53865c633b41.jpg?v=1745569020\" alt=\"\"\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/003_1_6420f50f-f632-480c-8d8a-0c8d4afb8470.jpg?v=1745569020\" alt=\"\"\u003e\u003c\/h4\u003e\n\u003ch4\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/005_3_5e01bde1-b876-40f0-a5b2-4ea7bfefef33.jpg?v=1745569020\" alt=\"\"\u003e\u003cbr\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; max-width: 800px; table-layout: fixed;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 50%;\"\u003e \u003ccol style=\"width: 50%;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBOX X2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Mode\u003c\/td\u003e\n\u003ctd\u003eRCA+3.5mm AUX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Mode\u003c\/td\u003e\n\u003ctd\u003eActive Speakers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003eStandard RIAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e≥ 98dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e0.66 lb\/300g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Dimension\u003c\/td\u003e\n\u003ctd\u003e4.66 inch\/3.85 inch\/1.29 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Input Range\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003eAC 110V - 240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Level\u003c\/td\u003e\n\u003ctd\u003e600 Mv @3mV 1kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e12V 1.5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\n\u003cbr\u003eWhat‘s in the box？\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; max-width: 800px; table-layout: fixed;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 50%;\"\u003e \u003ccol style=\"width: 50%;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBox X2 Phono Preamp\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVacuum Tubes\u003c\/td\u003e\n\u003ctd\u003ex 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12V 1.5A Power Adapter\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRCA Cable\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser’s Manual\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"display: flex; align-items: center; height: 20px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; height: 20px;\"\u003e\n\u003cimg style=\"width: 30px; height: 30px;\" alt=\"Download\" src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/7.jpg?v=1638263331\"\u003e \u003ca href=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/BOX_X2_0916.pdf?v=1638177867\"\u003eBOX X2 User Manual\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003ciframe width=\"480\" height=\"300\" src=\"https:\/\/www.youtube.com\/embed\/Rx3-dG4PQIE\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003ch3\u003eCompare with similar items:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/fosiaudio.com\/products\/fosi-audio-box-x1-phono-preamp-mm-turntable-preamplifer-with-3-5mm-aux-rca-output?_pos=2\u0026amp;_sid=d6baad285\u0026amp;_ss=r\" title=\"BOX X1-MM Phono Preamp\" target=\"_blank\"\u003eBOX X1-MM Phono Pream\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/fosiaudio.com\/products\/fosi-audio-bluetooth-phono-preamp-for-turntable-phonograph-preamplifier-with-ge5654-vacuum-tube-amplifier-audio-hifi-box-x3-diy?_pos=1\u0026amp;_sid=11e8574bd\u0026amp;_ss=r\" title=\"Box X3 Bluetooth Phono Preamp\" target=\"_blank\"\u003eBox X3 Bluetooth Phono Preamp\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Box X4 Phono Preamp with treble and bass control\" href=\"https:\/\/fosiaudio.com\/products\/phono-preamp-headphone-amplifier-with-jan-5654w-vacuum-tubes-for-mm-turntable-phonograph-preamplifier-for-record-player-with-volume-bass-treble-control-hi-fi-pre-amp-fosi-audio-box-x4?_pos=3\u0026amp;_sid=2bd1180e5\u0026amp;_ss=r\" target=\"_blank\"\u003eBox X4 Phono Preamp with treble and bass control\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773277978842,"sku":"BOX X2+12V","price":69.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/B07XNTHHBP.MAIN.jpg?v=1776428574"},{"product_id":"fosi-audio-box-x1-phono-preamp-mm-turntable-preamplifer-with-3-5mm-aux-rca-output","title":"Fosi Audio BOX X1 MM Turntable Phono Preamp","description":"\u003cul\u003e\n\u003cli\u003eConverts Phono Signals: Compact ultra-low noise phono turntable preamp that converts phono signals to line-level signals with Low-noise integrated circuits and high-quality components to remove low-frequency noise to ensure clear sound quality. Designed with a grounding post to protect your turntable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFeatures Power Switch \u0026amp; 3.5MM Headphone Output: The unique power switch button design is very convenient to use. You can enjoy high-quality music with headphones through the 3.5 mm headphone output. Note: RCA line output and AUX headphone output can be output simultaneously.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e3.5MM \/ RCA Output: BOX X1 supports MM turntable input, 3.5MM headphone output, and RCA line output for powered speakers. Note: You can connect a power amplifier through the 3.5MM or RCA output, then connect the passive speakers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eMM Phono Preamplifier \u0026amp; DC12V Power Adapter: Output Voltage Level: 2V max (P-P) at 10K Ohms, SNR: 70dB, THD: ≤0.08% @ 1kHz and 3mV, Frequency Response: Standard RIAA. Equipped with DC12V high-quality power supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eEasy quick setup for all MM (moving magnet) cartridges, Metal Aluminum case protects the unit from vibrations and electromagnetic interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" alt=\"Phono Preamp for Turntable with Volume Control Box X1\" src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/1_9e4799a0-f8ad-43d7-87ae-a5695566ec0a.jpg?v=1637654966\" data-mce-src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/1_9e4799a0-f8ad-43d7-87ae-a5695566ec0a.jpg?v=1637654966\"\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cimg data-mce-fragment=\"1\" alt=\"Phono Preamp for Turntable with Volume Control Box X1\" src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/2_737f42b9-b357-4c70-a42c-a28ecc6ebe33.jpg?v=1637654980\" data-mce-src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/2_737f42b9-b357-4c70-a42c-a28ecc6ebe33.jpg?v=1637654980\"\u003e\u003c\/div\u003e\n\u003ch4\u003e\n\u003cbr\u003e\u003cbr\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; max-width: 800px; table-layout: fixed;\" data-mce-style=\"width: 100%; max-width: 800px; table-layout: fixed;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 50%;\" data-mce-style=\"width: 50%;\"\u003e \u003ccol style=\"width: 50%;\" data-mce-style=\"width: 50%;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBOX X1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Mode\u003c\/td\u003e\n\u003ctd\u003e3.5MM headphone output + RCA output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Mode\u003c\/td\u003e\n\u003ctd\u003eMM turntable input, Grounding post input, 12V DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003eActive(powered) speakers, Headphone, Amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003eStandard RIAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e≤0.08% @ 1kHz and 3mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e70dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e0.35lb\/161g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Dimension\u003c\/td\u003e\n\u003ctd\u003e3.94×0.98×2.17 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Input Range\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003eAC 100V - 240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Level\u003c\/td\u003e\n\u003ctd\u003e2V max (P-P) at 10K Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e12V 1.5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\n\u003cbr\u003eWhat's in the box？\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; max-width: 800px; table-layout: fixed;\" data-mce-style=\"width: 100%; max-width: 800px; table-layout: fixed;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 50%;\" data-mce-style=\"width: 50%;\"\u003e \u003ccol style=\"width: 50%;\" data-mce-style=\"width: 50%;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBox X1 Phono Preamp\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12V 1.5A Power Adapter\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser’s Manual\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ciframe width=\"480\" height=\"300\" src=\"https:\/\/www.youtube.com\/embed\/HTRZAD1WACE\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3\u003eCompare with similar items:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/fosiaudio.com\/products\/fosi-audio-phono-preamp-for-turntable-preamplifier-mm-phonograph-preamplifier-with-gain-gear-mini-stereo-audio-hi-fi-pre-amplifier-for-record-player-with-dc-12v-power-box-x2?_pos=3\u0026amp;_sid=d6baad285\u0026amp;_ss=r\" title=\"Box X2 HiFi MM Phonograph Preamplifier\" data-mce-href=\"https:\/\/fosiaudio.com\/products\/fosi-audio-phono-preamp-for-turntable-preamplifier-mm-phonograph-preamplifier-with-gain-gear-mini-stereo-audio-hi-fi-pre-amplifier-for-record-player-with-dc-12v-power-box-x2?_pos=3\u0026amp;_sid=d6baad285\u0026amp;_ss=r\" target=\"_blank\"\u003eBox X2 HiFi MM Phonograph Preamplifier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/fosiaudio.com\/products\/fosi-audio-bluetooth-phono-preamp-for-turntable-phonograph-preamplifier-with-ge5654-vacuum-tube-amplifier-audio-hifi-box-x3-diy?_pos=1\u0026amp;_sid=11e8574bd\u0026amp;_ss=r\" title=\"Box X3 Bluetooth Phono Preamp\" data-mce-href=\"https:\/\/fosiaudio.com\/products\/fosi-audio-bluetooth-phono-preamp-for-turntable-phonograph-preamplifier-with-ge5654-vacuum-tube-amplifier-audio-hifi-box-x3-diy?_pos=1\u0026amp;_sid=11e8574bd\u0026amp;_ss=r\" target=\"_blank\"\u003eBox X3 Bluetooth Phono Preamp\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773278437594,"sku":"BOXX1-MM","price":39.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/products_2_53266c06-03b8-4b31-baa5-887e8f77b279.jpg?v=1776428583"},{"product_id":"phono-preamp-headphone-amplifier-with-jan-5654w-vacuum-tubes-for-mm-turntable-phonograph-preamplifier-for-record-player-with-volume-bass-treble-control-hi-fi-pre-amp-fosi-audio-box-x4","title":"Fosi Audio Box X4 MM Turntable Phono Preamplifier","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli\u003e\n\u003cp\u003e2021 NEW MODEL: The updated version for BOX X2. Next-generation phono preamp for unrivaled sound quality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cp\u003eMM Phono Preamplifier: The BOX X4 phono preamp supports 3.5MM AUX and MM turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. Designed with a grounding post to protect your turntable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cp\u003eTube Headphone Amplifier \u0026amp; Preamplifier: The BOX X4 is designed with a 3.5MM AUX headphone and RCA output, highly useful beyond imagination.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cp\u003eApplicable Vacuum Tube Model: \u003ca title=\"5654W\" href=\"https:\/\/fosiaudioshop.com\/collections\/other\/products\/tested-matched-pair-2-tubes-7-pin-ge-jan-5654w-fully-tested-vacuum-tubes-upgrade-for-6ak5-6j1-6j1p-ef95-ge-5654w-platinum-grade-pair\"\u003e5654W\u003c\/a\u003e\/6K4\/6J1\/6J4\/GE5654\/6AK5\/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tubes with different sounds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat You Get: BOX X4 phono preamp, DC 12V power supply, user manual, our worry-free 24-month warranty, and friendly customer service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/A__2_970x600_861106ba-52ad-42b8-a691-8681e1492d7c.jpg?v=1637656233\" alt=\"Phono Preamp \u0026amp; Headphone Amplifier with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Preamplifier for Record Player with Volume Bass Treble Control Hi-Fi Pre Amp Fosi Audio Box X4\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch4\u003e\n\u003cbr\u003e\u003cbr\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; max-width: 800px; table-layout: fixed;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 50%;\"\u003e \u003ccol style=\"width: 50%;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBOX X4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplicable headphone types\u003c\/td\u003e\n\u003ctd\u003e16 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Mode\u003c\/td\u003e\n\u003ctd\u003eMM turntable + 3.5mm AUX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Mode\u003c\/td\u003e\n\u003ctd\u003eRCA + 3.5mm headphone output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003eActive(powered) speakers, Amplifier, Headphones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003eStandard RIAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≥ 70dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Dimension\u003c\/td\u003e\n\u003ctd\u003e4.72 x 3.97 x 1.37 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Input Range\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003eAC 110V - 240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Level\u003c\/td\u003e\n\u003ctd\u003e1kHz and 650mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e12V 1.5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\n\u003cbr\u003eWhat‘s in the box？\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; max-width: 800px; table-layout: fixed;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 50%;\"\u003e \u003ccol style=\"width: 50%;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBOX X4 phono preamp\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVacuum Tubes\u003c\/td\u003e\n\u003ctd\u003ex 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC 12V power supply\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser's Manual\u003c\/td\u003e\n\u003ctd\u003ex 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"display: flex; align-items: center; height: 20px;\"\u003e\n\u003cimg style=\"width: 30px; height: 30px;\" alt=\"Download\" src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/7.jpg?v=1638263331\"\u003e \u003ca href=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/2251\/7913\/files\/BOX_X4_0621.pdf?v=1638177867\"\u003eBOX X4 User Manual\u003c\/a\u003e\n\u003c\/div\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773278339290,"sku":"Box X4","price":89.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/products_1_23f71b08-8ab3-4646-a3da-62a869a3e11b.jpg?v=1776428583"},{"product_id":"fosi-audio-sk01-headphone-amplifier-preamplifier","title":"Fosi Audio SK01 Headphone Amplifier Preamp","description":"\u003cul\u003e\n\u003cli\u003eWith treble, middle, and bass adjustments capabilities, combined with central point positioning, you can easily find the perfect balance. Additionally, you can effortlessly defeat all the tone adjustments with just a click on the PURE button.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUnmatched Headphone Compatibility: Experience versatile connectivity with the Fosi Audio SK01 Headphone Amplifier Preamplifier 2 in 1. Its input features a 3.5mm line in, while the output offers a 3.5mm line out, along with a 3.5mm\/6.35mm headphone jack. Enjoy powerful performance with a max power output of RMS 2400mW@32Ω, catering to terminating impedance between 16-300Ω. Elevate your audio experience with seamless connectivity and exceptional power, all in one compact device.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTailor-Made Audio Experience: The SK01 is a multi-functional audio gear that caters to desktop and portable music playing and tone tuning. The tri-band adjustment allows you to personalize treble, middle, and bass, finding the perfect balance for your preferences.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMulti-functional experience: Whether as a powerful headphone amp, a customizable analog preamp, or an accurate equalizer, it effortlessly elevates your listening experience, delivering exceptional sound quality and personalized sound signatures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLong-Lasting Battery: Enjoy up to 6 hours of continuous usage with the built-in high-capacity battery, while the isolated power design rejects interference, providing a pure listening experience without any interruptions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eExquisite Design: Crafted with an aluminum alloy body, the SK01 is both elegant in appearance and touch, adding a touch of sophistication to your desktop setup.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat you Get: Fosi Audio Sk01 Headphone Amp x1, User Manual x1,2-in-1 USB Type-A\/C to Type-C Cable x1, an 24-month worry-free warranty and friendly customer service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/1_9d1e8563-4d29-41cb-9870-897e2bce9035.jpg?v=1690797885\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\" data-mce-style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/2_24340b44-1a8b-4e65-b364-b38f4b10e9d4.jpg?v=1690797894\" alt=\"\" style=\"margin-bottom: 16px; float: none;\" data-mce-style=\"margin-bottom: 16px; float: none;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/2_24340b44-1a8b-4e65-b364-b38f4b10e9d4.jpg?v=1690797894\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\" data-mce-style=\"text-align: start;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/3_5a557429-4cdb-4bed-b226-baa393826f6e.jpg?v=1690797902\"\u003e\u003c\/div\u003e\n\u003ch4\u003e\n\u003cimg alt=\"SK01\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/4_1.jpg?v=1691465456\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/4_1.jpg?v=1691465456\"\u003e\u003cbr\u003e\u003cbr\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; max-width: 800px; table-layout: fixed;\" data-mce-style=\"width: 100%; max-width: 800px; table-layout: fixed;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 50%;\" data-mce-style=\"width: 50%;\"\u003e \u003ccol style=\"width: 50%;\" data-mce-style=\"width: 50%;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSK01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e3.5MM line in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003e3.5mm Headphone, 6.35mm Headphone, 3.5MM line out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmp output maximum power\u003c\/td\u003e\n\u003ctd\u003eHigh Gain: RMS 2400mw\/ 32Ω,Low Gain: RMS 300mw\/32Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e20Hz-20kHz (±0.5dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e0.001% @ 1kHz and 770mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR\u003c\/td\u003e\n\u003ctd\u003e≥108dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadphone matching impedance\u003c\/td\u003e\n\u003ctd\u003e16-300Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Dimension\u003c\/td\u003e\n\u003ctd\u003e4.76*2*1.69inch (121*51*43mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e0.641b\/290g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e5V, USB Type-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eUse a 5V 1.5A\/2A adapter to charge it.\u003cbr\u003e\u003cbr\u003eWhat‘s in the box？\u003c\/h4\u003e\n\u003cp\u003eItem Quantity Fosi Audio Sk01 Headphone Amp x 1, 2-in-1 USB-A\/C to C Cable x 1, User’s Manual x 1\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #51a1ba;\" data-mce-style=\"color: #51a1ba;\"\u003e\u003ca style=\"color: #51a1ba;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/SK01_User_Manual.pdf?v=1691480635\" data-mce-style=\"color: #51a1ba;\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/SK01_User_Manual.pdf?v=1691480635\"\u003eSK01 User Manual\u003c\/a\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 800px; table-layout: fixed;\" data-mce-style=\"width: 100%; max-width: 800px; table-layout: fixed;\"\u003e\u003ccolgroup\u003e \u003ccol style=\"width: 50%;\" data-mce-style=\"width: 50%;\"\u003e \u003ccol style=\"width: 50%;\" data-mce-style=\"width: 50%;\"\u003e \u003c\/colgroup\u003e\u003c\/table\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773279879386,"sku":"SK01","price":89.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/SK01_adc7bb25-9f40-420a-be22-05a30c490762.jpg?v=1776428589"},{"product_id":"fosi-audio-p3-tube-preamp","title":"Fosi Audio P3 Tube Preamplifier","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Tube Amplification:\u003c\/strong\u003e The preamp circuit elevates the voltage to 54V, ensuring the tubes work to their full potential, delivering a warm and rich experience. The unique preamplification technology delivers pure audio signals, faithfully reproducing crisp high tones, full midrange richness, and deep, rhythmic bass. \u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth 5.1:\u003c\/strong\u003e Equipped with the Qualcomm QCC3031 chip, the P3 preamp guarantees impressive wireless sound quality and low latency, with compatibility for \u003cstrong\u003eaptX HD and aptX LL\u003c\/strong\u003e codecs formats. Furthermore, the inclusion of a manual reset button prevents accidental connections by others, enhancing connection reliability.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Connectivities:\u003c\/strong\u003e The P3 provides Bluetooth\/RCA inputs and RCA\/AUX OUT\/3.5mm headphone outputs. It can help create a 2.1-channel audio system by connecting active speakers\/an amplifier and a subwoofer. As a headphone amplifier, it supports headphones with impedance ranging from 16Ω to 300Ω.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Components:\u003c\/strong\u003e It utilizes ELNA audiophile-grade capacitors and taper A pot. The bass and treble controls boast central detents for tone-defeating. With an SNR of up to 103dB and a crosstalk of 95dB, it helps form a HiFi audio system when paired with the V3 amplifier of the same series.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat You'll Get:\u003c\/strong\u003e Fosi Audio P3 Tube Preamplifier x1, User Manual x1, 5654W Vacuum Tube x2, 12V\/1.5A Power Supply x1, a 24-month worry-free warranty and responsive customer service. \u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773283516634,"sku":"P3+12V","price":99.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/P3_d5199d95-7499-45c3-ad49-fbb978856c72.jpg?v=1776428590"},{"product_id":"box-x5-phono-preamp","title":"Fosi Audio Box X5 Phono Preamplifier","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eHigh Performance: The BOX X5 phono preamp is compatible with both MM and MC cartridges, featuring 4 gain settings and an excellent precise RIAA equalization to provide a clean, direct pass-through of a signal when paired with your turntable\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eAudiophile-Grade Components: This preamp utilizes a variety of materials such as 2% Precision Polyester Film Capacitors, Green Sleeve Copper Lead Audio Capacitors, 0.1% High-Precision Film Resistors, OPA1612 Op-Amp, Gold-Plated RCA Jacks, and more. It picks up subtle and finite detail produced from it and delivers a truly warm and inviting sound\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eMultiple Gain Settings: With 4-Level gain adjustment Asettings of 38\/48\/56\/66dB, the preamplifier accommodates both MM \u0026amp; MC cartridge types, meeting a variety of needs. This enhances your phono stage and helps in rebuilding the vintage stereo sound\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eMini and Exquisite: It's built around a minimalist yet functional design featuring an all-aluminum alloy chassis. When paired with the V3 stereo amplifier, the BOX X5 can bring out the best in your vinyl playback, enhancing its frequency response and dynamic performance\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003eUser Friendly Design: It has an easy-to-use one-touch power button, gain control, and a convenient toggle switch to switch between MC and MM cartridges. In addition, the grounding port ensures that the connection is secure\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773285384410,"sku":"C.02.BOX X5.07","price":129.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/BOX_X5_086a001d-cf2b-478a-bd84-8cfe4cbae8e4.jpg?v=1776428570"},{"product_id":"p4-preamplifier","title":"Fosi Audio P4 Mini Preamplifier","description":"\u003cul\u003e\n\u003cli style=\"color: rgb(10, 10, 10);\"\u003e\n\u003cspan style=\"color: rgb(10, 10, 10);\"\u003e\u003cstrong\u003eMini Control Hub: \u003c\/strong\u003eThe P4 supports up to 3 RCA inputs, allowing easy connection to CD players, streamers, DACs, cassette decks, and turntables with built-in phono preamp. Switch between sources with a click for seamless audio control.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(10, 10, 10);\"\u003e\n\u003cspan style=\"color: rgb(10, 10, 10);\"\u003e\u003cstrong\u003ePractical and User-Friendly:\u003c\/strong\u003e Equipped with volume control, bass and treble adjustment with bypass function, three-level gain control, and a remote. The preamplifier offers convenient audio setup and optimization, making every listening session effortless.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(10, 10, 10);\"\u003e\n\u003cspan style=\"color: rgb(10, 10, 10);\"\u003e\u003cstrong\u003eMotorized Potentiometer:\u003c\/strong\u003e Featuring a high-precision motorized analog pot, the P4 delivers smooth volume adjustment, reduced noise, and minimal distortion for a purer and more refined sound experience.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(10, 10, 10);\"\u003e\n\u003cspan style=\"color: rgb(10, 10, 10);\"\u003e\u003cstrong\u003eCompact and Solid: \u003c\/strong\u003eThe P4 stereo preamp features a sleek, minimalist design that saves space and provides robust resistance to electromagnetic interference, ensuring reliable performance over time.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(10, 10, 10);\"\u003e\u003cspan style=\"color: rgb(10, 10, 10);\"\u003e\u003cstrong\u003eExceptional Performance: \u003c\/strong\u003eWith a low noise floor, high signal-to-noise ratio, and extremely low distortion, the P4 pre-amplifier delivers pristine audio, ensuring accurate sound reproduction and enhancing the listening experience for audiophiles\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773285253338,"sku":"P4-12V","price":109.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/P4.jpg?v=1776428574"},{"product_id":"gr40-tube-dac-preamp","title":"Fosi Audio GR40 Tube DAC Headphone Amp Preamp","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultifunctional DAC Preamplifier: \u003c\/strong\u003eThe GR40 is a versatile tube DAC preamplifier and headphone amplifier in one, it supports Bluetooth\/USB\/Optical\/Coaxial inputs and active speakers\/3.5mm headphone output, with a priority mode for headphones.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Resolution Decoding: \u003c\/strong\u003eWith the ESS9028Q2M DAC chip, the preamplifier offers superior audio quality and flexibility. The USB sampling rate supports 32Bit\/384kHz and DSD256, making an effective noise reduction to ensure lossless audio every time.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Bluetooth with Low Latency:\u003c\/strong\u003e Featuring the QCC3031 Bluetooth module, it supports aptX, aptX-HD, and aptX-LL codecs to provide detailed and clean audio sound. Also, you can get a relaxed experience with low latency when watching movies.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact yet Creativity:\u003c\/strong\u003e With its compact form and a combination of preamp volume, bass, and treble controls, the stereo preamplifier produces a sweeter, more organic sound while preserving the midrange and treble frequencies that make music.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Friendly Design: \u003c\/strong\u003eThe digital-to-analog audio converter GR40 is designed with user convenience at its core, allowing you to toggle between different audio inputs and restore Bluetooth—a real Plug-and-plug DAC preamplifier without any driver.\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2251\/7913\/files\/GR40--0822.pdf?v=1744949436\"\u003eManual\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773285548250,"sku":"C.01.GR40.05","price":139.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/1-1_8aab53ed-9a91-4a05-a488-a23578c08cf3.jpg?v=1776428574"},{"product_id":"gr70-tube-headphone-amp","title":"Fosi Audio GR70 Tube Headphone Amp","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003ePure Tube-Amplification\u003c\/strong\u003e: The GR70 headphone tube amp combines vintage charm with modern tech, delivering authentic tube essence. Perfect for headphone enthusiasts, it pairs excellently with over-ear and in-ear headphones for superior audio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eQuad Tubes:\u003c\/strong\u003e Features two 5654W and two 6Ж4\/6Ж8 vacuum tubes for two-stage amplification. The 5654W tubes boost voltage, while the 6Ж4\/6Ж8 tubes handle power amplification. This setup delivers balanced, transparent, and textured sound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eUser-Friendly Design:\u003c\/strong\u003e This tube headphone amp preamplifier offers intuitive controls, including a large volume knob, dual-side ventilation holes, bass \u0026amp; treble controls, high and low impedance mode switching, making it versatile enough\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eTwo-in-One:\u003c\/strong\u003e It supports low and high impedance modes switching to adapt 16Ω-300Ω headphones, and features 6.35mm\/3.5mm headphone jacks on the front and RCA Input\/Output on the rear for home audio HiFi system integration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eCompact Yet Powerful: \u003c\/strong\u003eCrafted with a CNC-machined aluminum alloy body, the GR70 is both durable and refined. Despite its compact size, it delivers up to 300mW power output and 1.2V RCA output with SNR ≥97dB—offering warm, clean, and dynamic sound\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773285679322,"sku":"GR70-US-12V","price":199.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/GR70.jpg?v=1776428579"},{"product_id":"zp3-preamplifier","title":"Fosi Audio ZP3 Preamplifier","description":"\u003cul\u003e\n\u003cli\u003eHome Audio Control Hub: Features 3-in-3-out options for connecting up to three audio sources. Includes a remote control for one-touch input switching and volume adjustment—making it easy to manage your home audio system with freedom\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVersatile Connectivity: Equipped with RCA1\/RCA2\/XLR inputs and RCA\/XLR\/Sub-Out outputs, the ZP3 integrates multiple devices with ease. Supports balanced XLR in\/out for cleaner sound, plus RCA\/XLR signal conversion for maximum compatibility\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAudiophile-Grade Components: Built with premium parts including ELNA capacitors,  NJR NJU72315 volume IC, and gold-plated RCA jacks. These components reduce noise and distortion, delivering exceptional clarity and high-fidelity performance\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable High-Pass Filter: Three-level HPF settings filter low-frequency signals from the RCA\/XLR outputs, sending only mids and highs to main speakers while routing bass through the SUB-OUT—enhancing clarity, detail, and overall sound balance\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlexible Sound Customization: Includes bass\/treble control with bypass function, and L\/R balance knobs for personalized adjustment. Volume memory remembers settings for each input source—giving you a smarter, more convenient audio experience tailored to your taste\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosi Audio","offers":[{"title":"Default Title","offer_id":47773285843162,"sku":"ZP3-US-NP","price":199.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/9706\/2618\/files\/001_5e57b4ec-3f3b-416d-9c85-b5e0ca69afd0.jpg?v=1776428579"}],"url":"https:\/\/eu.fosiaudio.com\/collections\/preamplifier.oembed","provider":"Fosi Audio EU","version":"1.0","type":"link"}