Fosi Audio Q4 Desktop DAC Headphone Amplifier
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Fosi Audio Q4 Desktop DAC Headphone Amplifier
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
We offer free worldwide shipping, except for certain regions such as Ukraine and Russia, where our services are currently unavailable.
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Customer Support
WhatsApp: +8613716612254
support@fosiaudio.com
Mon-Fri: 3:00 AM - 3:00 PM PST -
FAQ’s
If you have any questions, please refer here: FAQs
80W Toroidal Transformer
Custom pure copper toroidal transformer with up to 100W peak output ensures stable power delivery, even with three devices connected.
Nippon Chemi-Con Capacitors
Premium capacitors help minimize ripple and noise, with ripple as low as 0.1mV.
High-Reliability Rectifier
A GBU806 rectifier bridge rated at 600V/8A ensures fast, stable AC-to-DC power conversion.
4-Core Regulation
Powered by three LM1085IT and one ST78M05 linear regulators from Texas Instruments.
Product details
Description
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Easy to set up, no special software, app, or driver to install, a true plug-and-play digital audio adapter.
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With USB, optical and coaxial S/PDIF inputs can fit with most home audio systems, and RCA output can be connected to an amplifier or powered speakers on your desktop;
Built-in Hi-Fi headphone amp chip can drive most 16ohm to 200ohm headphones. -
160mW RMS(32 ohms, 20 Hz - 20 kHz, 0.01% THD), with bass and treble control, can be used as preamp or volume controller for your PC/MAC/Computer.
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Mini Compact D/A converter, stream bit-perfect 24bit/192KHz HD with low jitter, with output, protect the circuit, safe for your expensive audio system.
Specifications
| Specifications | Details |
|---|---|
| Model | Q4 |
| PC-USB supports input sampling rate | 24Bit/96kHz |
| High and low sound adjustment range | ±6dB |
| Fiber/coaxial support input sampling rate | 24Bit/192kHz |
| Frequency response | 20Hz-20kHz (±3dB) |
| PC-USB support operating system | XP/W7/W8/W10/MAC/Linux |
| Distortion | 0.01% |
| SNR | ≥105dB |
| Amp output maximum power | 100mW 32Ω load |
| Headphone matching impedance | 16Ω-200Ω |
| Working voltage | DC5V |
| RCA output level | 2.3V |
| Size (L*W*H) | 73.5*98*33MM (without knobs and terminals) |
Package Include
| Item | Quantity |
|---|---|
| Fosi Audio DAC-Q4 | x 1 |
| 5V USB Power Supply Cable | x 1 |
| PC-USB Cable | x 1 |
| Optical Cable | x 1 |
| User’s Manual | x 1 |
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Q7 Bluetooth 5.0 Hi-Fi Amp
Specifications
Power Input
AC: 115V / 230V
Note:
115V setting supports 100–120V input
230V setting supports 220–240V input
Power Output
DC 1: 12V / 15V (Rated Power: 20W)
DC 2: 12V / 5V (Rated Power: 15W)
USB: 5V / 1A (Rated Power: 5W)
Operating Temperature
-20 ~ 40°C (-4°F ~ 104°F)
Temperature Rise Test
Temperature rise of 25°C (77°F) at full load
What‘s in the box？
- Fosi Audio PSU20*1
- 1.2m (47.2 in) DC-DC Power Cable*1
- 0.3m (11.8 in) DC-DC Power Cable*1
- User Manual*1
- AC Power Cord*1