---
product_id: 461484867
title: "Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V"
brand: "nobsound"
price: "€ 93.82"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/461484867-douk-audio-u3-mini-class-a-headphone-amplifier-hifi-desktop
store_origin: PT
region: Portugal
---

# 1300mA output Ultra-low distortion 26V high voltage Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V

**Brand:** nobsound
**Price:** € 93.82
**Availability:** ✅ In Stock

## Summary

> 🎵 Unleash the audiophile within!

## Quick Answers

- **What is this?** Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V by nobsound
- **How much does it cost?** € 93.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/461484867-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

- • **DIY Delight:** Pluggable op amp socket design for endless customization and audiophile fun.
- • **Drive with Ease:** Strong drive power to effortlessly handle high-impedance headphones.
- • **Compact Powerhouse:** Mini size, maximum impact—perfect for your home or office desktop setup.
- • **Elevate Your Sound:** Experience audio like never before with a high voltage of 26V for pristine clarity.
- • **Versatile Listening:** Smooth, warm sound ideal for vocals, strings, and even rock—your music, your way.

## Overview

The Nobsound 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 and a high voltage operation of 26V, it delivers exceptional sound quality with ultra-low distortion. The amplifier features a pluggable op amp socket for easy upgrades, making it a versatile choice for both home and office audio systems. Its ability to drive high-impedance headphones ensures a rich listening experience across various music genres.

## Description

Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V

## Features

- Adopting innovative circuit design, DC 5-20V wide input working voltage, the amplifier circuit can always work at a high voltage of 26V, and the background noise index is excellent. With wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.
- Adopting original TI-NE5532 classical op amp and transistor expanding current circuit, using 1300mA large current output transistor working in class A status, with ultra-low distortion, and the sound is warm and delicate, full and mellow.
- Pluggable op amp socket design, convenient to upgrade different op amps and bring much DIY fun and playability for audiophiles. Smooth and mellow sound, suitable for listening to vocals or string music, classic or pop music, and even with unique charm when playing rock.
- Mini size with exquisite appearance and most cost-effective, brings big surprise for all audiophiles, easily to drive most headphones in the market, providing larger power, better sound field and details, very suitable for home/office desltop audio system use.
- With stong drive power, easily to drive most high-impedance headphones such as: HD580/HD600/HD650/K701/K702/Q701/DT880/T70/T90/SR225/SR325/RS1e

## Images

![Douk Audio U3 Mini Class A Headphone Amplifier HiFi Desktop Home Stereo Amp DC5V - Image 1](https://m.media-amazon.com/images/I/71UI7fJJYCL.jpg)

## 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

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**Shop now:** [https://www.desertcart.pt/products/461484867-douk-audio-u3-mini-class-a-headphone-amplifier-hifi-desktop](https://www.desertcart.pt/products/461484867-douk-audio-u3-mini-class-a-headphone-amplifier-hifi-desktop)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-23*