{"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","url":"https:\/\/eu.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","provider":"Fosi Audio EU","version":"1.0","type":"link"}