--- product_id: 224227339 title: "Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V (U3)" brand: "nobsound" price: "SAR 316" currency: SAR in_stock: true reviews_count: 13 category: "Nobsound" url: https://www.desertcart.com.sa/products/224227339-douk-audio-u3-mini-class-a-headphone-amplifier-hifi-desktop store_origin: SA region: Saudi Arabia --- # 1300mA output DC 5-20V input DIY upgradeable Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V (U3) **Brand:** nobsound **Price:** SAR 316 **Availability:** βœ… In Stock ## Summary > 🎢 Elevate Your Audio Game with the Douk U3! ## Quick Answers - **What is this?** Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V (U3) by nobsound - **How much does it cost?** SAR 316 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/224227339-douk-audio-u3-mini-class-a-headphone-amplifier-hifi-desktop) ## Best For - nobsound enthusiasts ## Why This Product - Trusted nobsound brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Compact Powerhouse:** Mini design that fits seamlessly into any desktop setup. - β€’ **Unleash Your Sound:** Experience ultra-low distortion with Class A amplification. - β€’ **Noise-Free Listening:** Innovative circuit design ensures a pristine audio background. - β€’ **Drive with Confidence:** Effortlessly powers high-impedance headphones for rich sound. - β€’ **Audiophile's Playground:** Easily swap op amps for a personalized audio experience. ## Overview The Douk Audio U3 Mini Class A Headphone Amplifier is a compact yet powerful audio solution designed for audiophiles. With a wide input voltage range of DC 5-20V, it maintains optimal performance while delivering high-quality sound through its premium components. The amplifier features a pluggable op amp socket for easy upgrades, making it perfect for those who love to customize their audio experience. Its strong drive power allows it to handle high-impedance headphones effortlessly, ensuring a rich and immersive listening experience. ## Description Free delivery and returns on eligible orders. Buy Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V (U3) at desertcart UK. Review: A must have for devices wiith a low sound output. - Outstanding little headphone amp. Gives poor phone, Discmans,docking systems a powerful boost. I use this for my D-303 Discman. Sounds powerful, with a great soundstage Review: Excellent headphone amp - I bought this to use with my favourite HiFiman headphones when I want to stream from my phone or laptop. The headphones are difficult to drive to a decent level even with my iPhone at full volume. This little device drives them beautifully and sounds superb. It’s also well made and finished and is superb value for money. ## Features - Wide Input Voltage: Innovative circuit design supports a DC 5-20V wide input working voltage, maintaining an optimal 26V for the amplifier circuit and delivering an excellent background noise index. - High-Quality Audio Components: Features the original TI-NE5532 op amp and a transistor expanding current circuit with 1300mA large current output transistors in Class A status for ultra-low distortion and a warm, delicate sound. - DIY Upgradeability: Pluggable op amp socket design allows for easy upgrades to different op amps, offering DIY fun and enhanced playability for audiophiles and sound enthusiasts. - Mini Size, High Performance: Compact and exquisite design offers great value, providing the power and sound quality to drive most headphones on the market with ease, perfect for home or office desktop audio systems. - Strong Drive Power: Effortlessly drives high-impedance headphones including models like HD580, HD600, HD650, K701, K702, Q701, DT880, T70, T90, SR225, SR325, and RS1e. ## Images ![Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V (U3) - Image 1](https://m.media-amazon.com/images/I/71UI7fJJYCL.jpg) ## Available Options This product comes in different **Model** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A must have for devices wiith a low sound output. *by R***N on 4 August 2026* Outstanding little headphone amp. Gives poor phone, Discmans,docking systems a powerful boost. I use this for my D-303 Discman. Sounds powerful, with a great soundstage ### ⭐⭐⭐⭐⭐ Excellent headphone amp *by J***N on 12 October 2025* I bought this to use with my favourite HiFiman headphones when I want to stream from my phone or laptop. The headphones are difficult to drive to a decent level even with my iPhone at full volume. This little device drives them beautifully and sounds superb. It’s also well made and finished and is superb value for money. ### ⭐⭐⭐⭐ Good budget amp *by J***. on 18 November 2025* This is my first amp for my pc, I've never bothered with buying one before this. It sounds good, however I can't say I personally notice a difference with it or without it, however there is one problem. This may be an issue with my computer rather than the device, but when the usb is plugged into my pc, it generates a noticeable static noise, I circumvented this by plugging it into a usb plug in the wall but it is rather unfortunate. Other than that it functions as a perfectly good lightweight amp and I can't really complain too much for the price! ## Frequently Bought Together - Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V (U3) - Amazon Basics 3.5 Aux to 2 x RCA Adapters, Audio Cable for Amplifiers, Active Speakers with Gold-Plated Plugs, 1.2 m, Black --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.sa/products/224227339-douk-audio-u3-mini-class-a-headphone-amplifier-hifi-desktop](https://www.desertcart.com.sa/products/224227339-douk-audio-u3-mini-class-a-headphone-amplifier-hifi-desktop) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-09-09*