--- product_id: 322368101 title: "Q4" brand: "fosi audio" price: "593 zł" currency: PLN in_stock: true reviews_count: 11 category: "Fosi Audio" url: https://www.desertcart.pl/products/322368101-q4 store_origin: PL region: Poland --- # Drives 16-200Ω headphones 24-bit/192kHz bit-perfect streaming 160mW RMS power output Q4 **Brand:** fosi audio **Price:** 593 zł **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your desktop audio game—because your ears deserve the upgrade! ## Quick Answers - **What is this?** Q4 by fosi audio - **How much does it cost?** 593 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/322368101-q4) ## 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 & Durable:** Sleek full-metal shell fits perfectly on any desk setup while protecting your investment. - • **Audiophile-Grade Sound:** Equipped with Texas Instruments NE5532 op-amps for crystal-clear, low-noise audio performance. - • **Plug & Play Simplicity:** No drivers or apps needed—just connect and elevate your audio instantly. - • **Versatile Connectivity:** Supports USB, optical, coaxial, and RCA inputs for seamless integration with all your devices. - • **Customizable Audio Control:** Built-in bass and treble adjustments let you tailor sound to your exact preference. ## Overview The Fosi Audio Q4 is a compact, high-performance DAC and headphone amplifier designed for professionals and audiophiles alike. It delivers pristine 24-bit/192kHz digital-to-analog conversion with low noise and distortion, supports multiple input types including USB, optical, and coaxial, and drives headphones from 16 to 200 ohms. Its robust metal chassis and plug-and-play design make it an essential upgrade for anyone seeking immersive, studio-quality sound at their desk. ## Description Buy Fosi Audio Q4 - Mini Stereo Gaming DAC & Headphone Amplifier, 24-Bit/192 KHz USB/Optical/Coaxial to RCA AUX, Digital-to-Analog Audio Converter Adapter for Home/Desktop Powered/Active Speakers - Black online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase. Review: Hifi is King - Mp3s ruined music. Those who grew up on cassettes and CDs know that music is supposed to sound a certain way. However, those who have only heard Mp3s may not fully understand. Even with low-quality headphones, cassette tapes and CDs provide an immersive listening experience. In contrast, listening to old favorites on iTunes can be dull and lacking in detail. I used to focus on expensive Bluetooth headphones that promised an excellent listening experience, but found that the sound remained unsatisfyingly uniform. Eventually, I discovered the Hifi realm and realized that streaming services offering Mp3s had been scamming us. All I needed was a DAC and a pair of affordable headphones, along with a Hifi subscription from Deezer, to experience the full range of amazing sounds again. I am now listening to my old favorites again and they sound as they did on CD Those who claim that DACs don't make a difference probably grew up on Mp3s. Although it's not necessary to spend a lot of money on this equipment, I found that my DAC headphone combo cost a third of what I paid for my Sony XM4s and provided much better quality. The only downside is that this setup isn't portable. However, it works well for me as I'm mostly at my desk. I just started using this DAC so I can't give a comprehensive review of it. I can tell you it works well and sounds amazing. But I bet an audiophile may laugh in disgust. If anything happens in the coming months I'll update here. Review: Honest and good DAC - Very good product. Don’t expect a very deep bass or any sound profile on mediums and highs. It is a plain, neutral DAC. And for that, it does an excellent job. I liked the construction, the materials quality and the accessories that came with it. ## Features - Q4 DAC headphone amplifier is designed with RCA/PC-USB/optical/coaxial/ inputs and 3.5MM headphone outputs can fit with most home audio system and headphones. (Note: Q4 do not support Microphone). RCA output can be connected to amplifier or powered speakers on your desktop. Built-in Hi-Fi headphone amp chip can drive most 16 Ohm to 200 Ohm headphones. - Q4 Heaphone USB DAC Adopts the Texas Instruments NE5532 high-performance operational amplifiers chip combining excellent DC and AC characteristics. Q4 features very low noise, high output-drive capability, high unity-gain, and maximum-output-swing bandwidths, low distortion, high slew rate, input-protection diodes, and output short-circuit protection.Q4 has specified maximum limits for equivalent input noise voltage. - 160mW RMS(32 ohms, 20 Hz - 20 KHz, 0.01% THD), with bass and treble control Q4 can be used as preamp or volume controller for your PC/Computer/MAC/headphons/speakers system. Easy to set up. No special software, app, or driver to install, a true plug-and-play digital audio adapter. - Mini compact D/A converter, full metallic shell to ensure high quality. Stream bit-perfect 24bit/192KHz HD with low jitter, with output protect circuit, safe for 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, and friendly customer service. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07VDQQY95 | | Best Sellers Rank | #15,910 in Electronics ( See Top 100 in Electronics ) #14 in Digital-Analog Converters | | Country of origin | China | | Item model number | Q4 | | Language | English | | Manufacturer | Fosi Audio | | 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 ![Q4 - Image 1](https://m.media-amazon.com/images/I/51ahAHhZF6L.jpg) ## Questions & Answers **Q: Can Q4 output analog stereo audio through both the 3.5mm headphone jack and the RCA red/white jacks at the same time?** A: Q4 will mute the RCA output when headphones are plugged in. **Q: How do I connect Q4 to my computer with USB input?** A: Your other USB cables must support OTG function. -For iPhone: Use a USB B to Lightning OTG Cable. -For Android: Use a USB B to TYPE C Cable. **Q: Where is the 0db position (Q4)?** A: The 0db position is at 12 o'clock on the knob. **Q: Does Q4 support PS5?** A: Yes, it supports PS5. **Q: Can RCA output be connected to a soundbar (e.g., AUX input) (Q4)?** A: Yes, it can work. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Hifi is King *by R***I on 16 August 2023* Mp3s ruined music. Those who grew up on cassettes and CDs know that music is supposed to sound a certain way. However, those who have only heard Mp3s may not fully understand. Even with low-quality headphones, cassette tapes and CDs provide an immersive listening experience. In contrast, listening to old favorites on iTunes can be dull and lacking in detail. I used to focus on expensive Bluetooth headphones that promised an excellent listening experience, but found that the sound remained unsatisfyingly uniform. Eventually, I discovered the Hifi realm and realized that streaming services offering Mp3s had been scamming us. All I needed was a DAC and a pair of affordable headphones, along with a Hifi subscription from Deezer, to experience the full range of amazing sounds again. I am now listening to my old favorites again and they sound as they did on CD Those who claim that DACs don't make a difference probably grew up on Mp3s. Although it's not necessary to spend a lot of money on this equipment, I found that my DAC headphone combo cost a third of what I paid for my Sony XM4s and provided much better quality. The only downside is that this setup isn't portable. However, it works well for me as I'm mostly at my desk. I just started using this DAC so I can't give a comprehensive review of it. I can tell you it works well and sounds amazing. But I bet an audiophile may laugh in disgust. If anything happens in the coming months I'll update here. ### ⭐⭐⭐⭐⭐ Honest and good DAC *by C***N on 26 August 2024* Very good product. Don’t expect a very deep bass or any sound profile on mediums and highs. It is a plain, neutral DAC. And for that, it does an excellent job. I liked the construction, the materials quality and the accessories that came with it. ### ⭐⭐⭐ Not like that above review mentioned one.average product. *by S***T on 25 January 2025* Average product ## 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) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/322368101-q4](https://www.desertcart.pl/products/322368101-q4) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-08*