---
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: "₩295020"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/174108366-fosi-audio-q4-headphone-amplifier-dac-converter-mini-stereo-digital
store_origin: KR
region: South Korea
---

# 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:** ₩295020
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate Every Beat — Your Sound, Your Rules

## 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?** ₩295020 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/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 Yet Powerful:** Sleek metal chassis packs a punch with 160mW RMS output powering headphones from 16 to 200Ω.
- • **Plug & Play Simplicity:** No drivers or software needed—just connect and elevate your audio instantly.
- • **Versatile Connectivity:** Seamlessly switch between USB, optical, and coaxial inputs for all your devices.
- • **Audiophile-Grade Clarity:** Experience pristine, distortion-free sound with 24bit/192kHz bit-perfect streaming.
- • **Customizable Sound Profile:** Tactile bass & treble controls let you tailor your audio vibe on the fly.

## Overview

The Fosi Audio Q4 is a compact, high-performance DAC headphone amplifier that converts digital signals (USB, optical, coaxial) into rich analog audio. Delivering up to 160mW RMS power and supporting headphones from 16 to 200Ω, it streams bit-perfect 24bit/192kHz audio with low distortion. Its plug-and-play design requires no drivers, while bass and treble controls offer personalized sound tuning. Built with a durable metal shell, the Q4 is perfect for gamers, audiophiles, and professionals seeking premium desktop audio enhancement.

## Description

This compact DAC and headphone amp delivers clear, distortion-free 24bit/192kHz audio. Plug-and-play design, no software needed - easy upgrade for PCs, Macs, and speakers.

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!
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.

## 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 | 74 in Headphone Amplifiers |
| Colour | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,081) |
| Date First Available | 31 July 2019 |
| Item Weight | 430 g |
| Item model number | Q4 |
| Other display features | Wireless |
| Product Dimensions | 9.91 x 7.37 x 3.3 cm; 430 g |

## 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)

## 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

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐ Great entry level DAC
*by L***M on 23 April 2021*

I recently recieved a Beyerdynamic DT-990 Pro 250 Ohm, so I decided to do some research on the best budget DAC/Amp as the motherboard sound card is pretty bad and I had static white noise on loud volumes and random crackling. So I came across this one in some YouTube reviews and they all mentioned how it's a great budget USB DAC for the price. And I knew I had to try it out and see if it's good ( I could return it if I didn't like it ). And the sound quality had a reasonable improvement, it wasn't mindblowing but it wasn't worse than my current setup, and I can esure you it's great for the price. The soundstage is decent and the volume is perfect for my 250 Ohm headset. I've spent some time messing around with the 'Bass' and 'Treble' knobs on the front to get my ideal sound and i've settled with the Bass being about halfway and Treble about a third a way up. This balances out the Bass and enhances the treble ( good for gaming ).

## 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 South Korea*
*Store origin: KR*
*Last updated: 2026-01-30*