---
product_id: 174108366
title: "Fosi Audio Q4 Headphone Amplifier DAC Converter, Mini Stereo Digital-to-Analog DAC Amp, USB Coaxial Optical to 3.5MM AUX RCA Jack, for Computer Desktop Powered Active Speakers Up to 24 bit/192 kHz"
brand: "fosi audio"
price: "VT43945"
currency: VUV
in_stock: true
reviews_count: 13
category: "Fosi Audio"
url: https://www.desertcart.vu/products/174108366-fosi-audio-q4-headphone-amplifier-dac-converter-mini-stereo-digital
store_origin: VU
region: Vanuatu
---

# Supports 16-200Ω headphones 24bit/192kHz high-res audio 160mW RMS output power Fosi Audio Q4 Headphone Amplifier DAC Converter, Mini Stereo Digital-to-Analog DAC Amp, USB Coaxial Optical to 3.5MM AUX RCA Jack, for Computer Desktop Powered Active Speakers Up to 24 bit/192 kHz

**Brand:** fosi audio
**Price:** VT43945
**Availability:** ✅ In Stock

## Summary

> 🎧 Upgrade your sound game—because your ears deserve the best!

## Quick Answers

- **What is this?** Fosi Audio Q4 Headphone Amplifier DAC Converter, Mini Stereo Digital-to-Analog DAC Amp, USB Coaxial Optical to 3.5MM AUX RCA Jack, for Computer Desktop Powered Active Speakers Up to 24 bit/192 kHz by fosi audio
- **How much does it cost?** VT43945 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/174108366-fosi-audio-q4-headphone-amplifier-dac-converter-mini-stereo-digital)

## Best For

- fosi audio enthusiasts

## Why This Product

- Trusted fosi audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Metal Build:** Sleek, durable full-metal chassis fits effortlessly on your desk while protecting your investment.
- • **Plug & Play Simplicity:** No drivers or software needed—just connect and elevate your audio instantly.
- • **Versatile Connectivity:** Seamlessly converts USB, optical, and coaxial digital inputs to analog RCA and 3.5mm outputs—perfect for any setup.
- • **Customizable Audio Control:** Tactile bass and treble knobs let you fine-tune your sound signature on the fly for every mood and moment.
- • **Immersive Gaming Soundstage:** Texas Instruments NE5532 op-amps deliver ultra-low noise and crystal-clear spatial audio for next-level immersion.

## Overview

The Fosi Audio Q4 is a compact, beginner-friendly headphone amplifier and DAC converter that supports high-resolution 24bit/192kHz audio. It powers headphones from 16 to 200 ohms with 160mW RMS output, featuring versatile USB, optical, and coaxial inputs. Its premium metal build and tactile bass/treble controls deliver a customizable, immersive listening experience ideal for gaming, music, and home audio setups—all without complicated software installation.

## Description

Product Description Fosi Audio Q4 DAC & Headphone Amplifier A compact and lightweight, user-friendly desktop audio device. video Your Sound Perception Will be Revolutionized Q4 is an entry-level all-in-one DAC and headphone amplifier. It is plug-and-play and does not require any driver. It has the characteristics of high signal-to-noise ratio and low distortion. Suitable for 16-200 Ohm headphones. PC-USB Sampling Frequency: 24bit/96kHz Optical/Coaxial Sampling Rates: 24bit/192kHz SNR: >105dB; THD: 0.01%; Bass and Treble Range: ±6dB Operation Systems: XP/Win7/Win8/Win10/Win11/MAC/Linux Accommodate Various Home Audio Systems Equipped with USB/Optical/Coaxial inputs and RCA/Headphone outputs for diverse connection needs. DAC + Headphone Amplifier Suitable for 16-200 Ohm headphones A compact, lightweight, and user-friendly desktop device that adapts to your varied needs. A Little Gem for Music Lovers SNR up to 105dB keeps the sound clear and pure at all times and effectively resists interference. Perfect for Gaming Low latency and an outstanding sound stage provide an incomparable feeling of immersion. Frequently Asked Questions Q: White noise with In-Ear Wired headphones on Q4 A: It will produce white noise when I try it with regular In-Ear Wired headphones. Please set the volume level to 50% or less, and the noise will disappear. Q: Why is there no amplification effect on the headphone output? A: It depends on the type of headphones used. Higher impedance headphones will have lower volume, please try using headphones with a lower impedance. Q: Does the output volume differ across input modes when using the headphone output? A: In our actual testing, under the same input level conditions, the output sound across all three input modes is consistent. However, different sources may result in variations in output. Q: Not Working A: Ensure a stable electrical environment. Confirm all are plugged correctly. Make sure to try multiple USB-C cables and replace the 5V 1A/2A power adapter. The Q4 supports 5V/1A or 5V/2A power input — please do not use a 5V/3A adapter, as it is not compatible. Kindly connect the device to your laptop’s USB port to check if it powers on. 3.5mm Headphone Output Boosts headphone performance and enhances audio quality by delivering higher current and voltage output. Headphone output power: 250mW (32Ω load) Headphone matching impedance: 16-200Ω Exquisite Craftsmanship The corners are treated to safeguard against scratches from sharp metal edges, while the entire device is constructed from sturdy and durable all-aluminum alloy. Parameter Comparison Q4 K5 PRO SK01 SK02 DS1 DS2 PH05

Review: Mobo mic in works 👍 - I asked the question if this would work as a gaming DAC and output sound to my headphones and still have the ability to mic into the motherboard of my PC. I was told no but I can say that this setup configuration works without issues for me. (Runbing Windows 10, b550 motherboard, V-moda BoomPro mic, Philips shp9500, splitter cable). I was advised by a friend, researched throughly and came to the conclusion that this would be a good quality setup. The addition of this DAC has made it a perfect gaming setup for me and at a good overall cost. PROS: • this DAC played a part in delivering better performance than most gaming headsets. • I didn't think that bass and treble control would be very useful but I now find myself regularly tweaking them in various situations to optimise game sound and music to my taste. • Nice weight to the unit yet quite compact in size. • Control dials have a nice quality feel to them. • Noticeable cleaner sound when compared to motherboard output. • Good sound stage which is perfect for gaming. • I HAVE NO PROBLEMS WITH MIC INTO MOTHERBOARD WHILST USING USB TO DAC. CONS: • For convenience only, it would have been nice to have the mic pass through without having to split into mobo. CONCLUSION: I would definitely recommend this to anyone looking for a decent gaming sound experience at a good price point.
Review: Fosi Audio Q4 Headphone Amplifier DAC Converter - A Game Changer with Toslink Optical Connection! - Having previously purchased two ‘cheap’ DAC Converter units and really struggled to get any decent level of sound through them, I decided to bite the bullet and pay a bit more for the Fosi Audio Q4 Headphone Amplifier DAC Converter. I am using this unit with a TosLink optical cable and it has exceeded all my expectations. This little device punches above its weight and delivers a remarkable listening experience that I think would be hard to match in its price range. It is a very compact and sturdy design, with a solid and premium feel to it. I am using this device with an LG Smart TV that is fitted into a bed unit (so TV rises from foot of the bed). As such, we only ever use this TV with headphones, so achieving decent sound through headphones is essential to us. As previously mentioned, I had struggled to get any decent level of sound through two cheaper versions of DAC converters (the sound levels were so quiet we had resorted to always using subtitles when watching TV), but I just left the cables in place that were used with those and plugged them into the Fosi unit – which clearly showed me there was nothing wrong with the cables I had been using and the issue was with the cheap DAC units. With the Fosi unit, everything works brilliantly and the sound quality and levels are awesome. I am not using particularly expensive headphones – they are wired and have an impedance value of 32 – which should have been good enough with the original ‘cheap’ DAC converter but simply wasn’t The Fosi Audio Q4 Headphone Amplifier DAC Converter is an absolute gem – although it should be noted I have only tried connecting via Toslink optical cable so cannot comment on other connection options. It’s hard to believe that such a small, affordable device can provide this level of audio performance. Highly recommended!

## Features

- Beginner-Friendly: The Q4 DAC headphone amplifier effortlessly connects to a range of home audio systems and headphones. It is a comprehensive solution to meet diverse needs and can convert optical/coaxial/PC-USB input digital signals into RCA headphone output analog signals for versatile connectivity.
- Plug and Play: Simple to set up and requires no special software, app, or driver installation. Capable of delivering 160mW RMS of output power (32 Ohms, 20 Hz - 20 KHz, 0.01% THD), this desktop headphone amplifier can power headphones from 16 Ohms to 200 Ohms, making it ideal for PC/MAC/headphone/speaker systems controller.
- Perfect for Gaming: ThisUSB DAC amp incorporates high-performance operational amplifier chips NE5532 from Texas Instruments. The device features very low noise, high output-drive capability, high unity-gain bandwidths, low distortion and high slew rate. Its excellent sound field will bring you an unparalleled sense of immersion
- Outstanding Build Quality: Mini compact DAC converter with a full metallic shell that ensures high quality. It streams bit-perfect 24bit/192KHz HD with low jitter(24bit/96KHz for USB), bass & treble controls provide pleasant tactile clicky sensation, with an output protection circuit to safeguard your expensive audio system.
- What You Get: Q4 USB DAC x1, USB charging cable x1, optical cable x1, PC-USB to type B cable, User Manual x1, our worry-free 24-month warranty, as well as friendly customer service. Please note that there is no remote control included in the package.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VDQQY95 |
| Best Sellers Rank | 23 in Headphone Amplifiers |
| Brand | Fosi Audio |
| Compatible Devices | Amplifier, Headphone, Speaker, Television |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 3,185 Reviews |
| Interface | Coaxial, Optical, USB |
| Interface type | Coaxial , Optical , USB |
| Item Dimensions L x W | 9.9L x 7.4W centimetres |
| Item Weight | 430 Grams |
| Manufacturer | Fosi Audio |
| Manufacturer Part Number | Q4 |
| Material | Metal |
| Maximum Supply Voltage | 5 Volts (DC) |
| Maximum supply voltage | 5 Volts (DC) |
| Minimum Supply Voltage | 5 Volts (DC) |
| Minimum supply voltage | 5 Volts (DC) |
| Model Number | Q4 |
| Mounting Type | Table |
| Mounting type | Table |
| Number of Channels | 1 |
| Number of Pins | 11 |
| Number of pins | 11 |
| Product Warranty | 24 months |
| Unit Count | 1 count |

## Product Details

- **Brand:** Fosi Audio
- **Maximum supply voltage:** 5 Volts (DC)
- **Minimum supply voltage:** 5 Volts (DC)
- **Mounting type:** Table
- **Number of pins:** 11

## Images

![Fosi Audio Q4 Headphone Amplifier DAC Converter, Mini Stereo Digital-to-Analog DAC Amp, USB Coaxial Optical to 3.5MM AUX RCA Jack, for Computer Desktop Powered Active Speakers Up to 24 bit/192 kHz - Image 1](https://m.media-amazon.com/images/I/51ahAHhZF6L.jpg)
![Fosi Audio Q4 Headphone Amplifier DAC Converter, Mini Stereo Digital-to-Analog DAC Amp, USB Coaxial Optical to 3.5MM AUX RCA Jack, for Computer Desktop Powered Active Speakers Up to 24 bit/192 kHz - Image 2](https://m.media-amazon.com/images/I/81FruhStl+L.jpg)
![Fosi Audio Q4 Headphone Amplifier DAC Converter, Mini Stereo Digital-to-Analog DAC Amp, USB Coaxial Optical to 3.5MM AUX RCA Jack, for Computer Desktop Powered Active Speakers Up to 24 bit/192 kHz - Image 3](https://m.media-amazon.com/images/I/71dh4m7FtZL.jpg)
![Fosi Audio Q4 Headphone Amplifier DAC Converter, Mini Stereo Digital-to-Analog DAC Amp, USB Coaxial Optical to 3.5MM AUX RCA Jack, for Computer Desktop Powered Active Speakers Up to 24 bit/192 kHz - Image 4](https://m.media-amazon.com/images/I/71vJ9xrjYyL.jpg)
![Fosi Audio Q4 Headphone Amplifier DAC Converter, Mini Stereo Digital-to-Analog DAC Amp, USB Coaxial Optical to 3.5MM AUX RCA Jack, for Computer Desktop Powered Active Speakers Up to 24 bit/192 kHz - Image 5](https://m.media-amazon.com/images/I/71lgtFJ6OEL.jpg)

## Questions & Answers

**Q: Would this be ok for 8ohm - 80w passive speakers?**
A: No.  This is a headphone amplifier with 160 *milliwatt* output.  Unless you want to clamp one passive speaker to each side of your head, you won't hear much.

**Q: Would this work with 250 ohm beyerdynamic headphones?**
A: Yes, but it wont be as loud compared to something with more power to drive higher impedance headphones.

**Q: is this an amp or a dac? and would it be a good pair for a senhieser HD560s?**
A: This is a DAC with amp-like controls, and yes the HD560 impedance is 120 Ohms, this DAC can power up to 200.

**Q: Every time I try to play any sound on windows there is a few seconds delay before the sound starts. Is there an easy way to fix this?**
A: Are you using optical cable?

## Customer Reviews

### ⭐⭐⭐⭐⭐ Mobo mic in works 👍
*by L***S on 22 January 2022*

I asked the question if this would work as a gaming DAC and output sound to my headphones and still have the ability to mic into the motherboard of my PC. I was told no but I can say that this setup configuration works without issues for me. (Runbing Windows 10, b550 motherboard, V-moda BoomPro mic, Philips shp9500, splitter cable). I was advised by a friend, researched throughly and came to the conclusion that this would be a good quality setup. The addition of this DAC has made it a perfect gaming setup for me and at a good overall cost. PROS: • this DAC played a part in delivering better performance than most gaming headsets. • I didn't think that bass and treble control would be very useful but I now find myself regularly tweaking them in various situations to optimise game sound and music to my taste. • Nice weight to the unit yet quite compact in size. • Control dials have a nice quality feel to them. • Noticeable cleaner sound when compared to motherboard output. • Good sound stage which is perfect for gaming. • I HAVE NO PROBLEMS WITH MIC INTO MOTHERBOARD WHILST USING USB TO DAC. CONS: • For convenience only, it would have been nice to have the mic pass through without having to split into mobo. CONCLUSION: I would definitely recommend this to anyone looking for a decent gaming sound experience at a good price point.

### ⭐⭐⭐⭐⭐ Fosi Audio Q4 Headphone Amplifier DAC Converter - A Game Changer with Toslink Optical Connection!
*by H***R on 19 November 2024*

Having previously purchased two ‘cheap’ DAC Converter units and really struggled to get any decent level of sound through them, I decided to bite the bullet and pay a bit more for the Fosi Audio Q4 Headphone Amplifier DAC Converter. I am using this unit with a TosLink optical cable and it has exceeded all my expectations. This little device punches above its weight and delivers a remarkable listening experience that I think would be hard to match in its price range. It is a very compact and sturdy design, with a solid and premium feel to it. I am using this device with an LG Smart TV that is fitted into a bed unit (so TV rises from foot of the bed). As such, we only ever use this TV with headphones, so achieving decent sound through headphones is essential to us. As previously mentioned, I had struggled to get any decent level of sound through two cheaper versions of DAC converters (the sound levels were so quiet we had resorted to always using subtitles when watching TV), but I just left the cables in place that were used with those and plugged them into the Fosi unit – which clearly showed me there was nothing wrong with the cables I had been using and the issue was with the cheap DAC units. With the Fosi unit, everything works brilliantly and the sound quality and levels are awesome. I am not using particularly expensive headphones – they are wired and have an impedance value of 32 – which should have been good enough with the original ‘cheap’ DAC converter but simply wasn’t The Fosi Audio Q4 Headphone Amplifier DAC Converter is an absolute gem – although it should be noted I have only tried connecting via Toslink optical cable so cannot comment on other connection options. It’s hard to believe that such a small, affordable device can provide this level of audio performance. Highly recommended!

### ⭐⭐⭐⭐ Good but ...
*by W***H on 21 January 2026*

It's good but knobs for treble and bass aren't doing that much to be honest.

## Frequently Bought Together

- Fosi Audio Q4 Desktop DAC Headphone Amp for PC Mini Stereo Headphone Amplifier Combo USB Optical Coaxial to RCA AUX Digital-to-Analog Audio Converter Adapter for Home Powered Speakers
- Sennheiser HD 560 S Over-The-Ear Audiophile Headphones - Neutral Frequency Response, E.A.R. Technology for Wide Sound Field, Open-Back Earcups, Detachable Cable, (Black) (HD 560S)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-06-05*