---
product_id: 556934308
title: "U10 Mini Tube Headphone Amplifier HiFi Stereo Preamp for Home Speaker"
brand: "douk audio"
price: "€ 115.15"
currency: EUR
in_stock: true
reviews_count: 5
category: "Douk Audio"
url: https://www.desertcart.fi/products/556934308-u10-mini-tube-headphone-amplifier-hifi-stereo-preamp-for-home
store_origin: FI
region: Finland
---

# Pluggable 6A2 tubes for customizable sound 1100mW dual headphone output 24V internal voltage boost from 5V input U10 Mini Tube Headphone Amplifier HiFi Stereo Preamp for Home Speaker

**Brand:** douk audio
**Price:** € 115.15
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound game with tube-powered precision and pure HiFi bliss!

## Quick Answers

- **What is this?** U10 Mini Tube Headphone Amplifier HiFi Stereo Preamp for Home Speaker by douk audio
- **How much does it cost?** € 115.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/556934308-u10-mini-tube-headphone-amplifier-hifi-stereo-preamp-for-home)

## Best For

- douk audio enthusiasts

## Why This Product

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

## Key Features

- • **Next-Level Clarity:** Advanced 24V voltage boost circuit ensures ultra-low noise and pristine soundstage.
- • **Powerful Dual Output:** Drive any headphone from 18Ω to 600Ω with up to 1100mW of clean power.
- • **Audiophile-Grade Build:** All-metal chassis with ceramic tube sockets for durability and superior shielding.
- • **Customizable Tube Tone:** Easily swap 6A2 tubes and op amps to tailor your audio signature.
- • **Versatile Connectivity:** Supports 3.5mm AUX and RCA inputs plus dual 3.5/6.35mm headphone jacks for seamless integration.

## Overview

The Douk Audio U10 Mini Tube Headphone Amplifier is a compact yet powerful HiFi preamp and headphone amp delivering up to 1100mW output for headphones ranging from 18 to 600Ω. Featuring a unique 24V internal voltage boost from a 5V power source, it guarantees ultra-low noise and wide soundstage. Its pluggable 6A2 tubes and op amps allow easy customization of warm, natural tube tones. With versatile 3.5mm AUX and RCA inputs plus dual headphone outputs, the U10 is designed for audiophiles seeking premium sound quality in a sleek, durable metal chassis.

## Description

Experience powerful HIFI sound with the U10 headphone amplifier. Compatible with various devices, it delivers 1100mW dual headphone outputs for 18-600Ω headphones and enhances sound quality as a preamp. Advanced voltage boost circuit and pluggable design offer pure, natural sound. Ideal for vocals and classic music lovers. Warm tips: 1. Not inlcude power adapter, recommend to use original high-quality power adapter (DC5V/≥2A ). U10 won't work normally if the current below 2A. 2. Inputs (3.5mm / RCA) and outputs (6.35mm/3.5mm jack) are connected in parallel, in other words, all inputs and outputs work simultaneously. Don't connect 3.5mm and RCA inputs at the same time, or else audio signals will be mixed. 3. Pluggable tube socket design, 6A2 can be replaced by the following models: 6J1、6ж1П、6AK5、6BC5、403A/B、5654、EF40、EF95、CV850、6J2、6ж2П、6AS6、CV2522、EF11/732、CV4011、6J3、6ж3П、EF96、CV848、6BC6、6AG5、 6J4、6ж4、6136、6BX6、6AC7、EF94、6AU6、6K4、6K5、6K4П、6BA6、6DA6、EF89/93、5749 4. U10 can easily drive all headphones even with high-impedance such as HD580/HD600/HD650 / K701/K702/Q701 / DT880/T70/T90 / SR225/SR325/RS1e etc. Parameters: Brand: Douk Audio Model: U10 Audio input: 3.5mm AUX / Stereo RCA Audio output: 3.5mm / 6.35mm headphone jack Tube Model: 6A2 (2PCS) Op amp model: NE5532 (2PCS) Frequency response: 20Hz-30KHz Output power: ≥1100mW (32Ω) Matched headphone impedance: 18-600Ω Signal to noise ratio: ≥110DB Input voltage: DC 5V (≥2A) Working voltage inside: DC 24V Net weight: 200g / 0.44lb Package weight: 300g / 0.66lb Dimensions (W*D*H): 69*95*30mm / 2.72*3.74*1.18in (not including tubes) Package Dimensions (W*D*H): 132*85*90mm / 5.20*3.35*3.54in Packing List 1 × U10 Headphone Amplifier 2 × 6A2 Tube 1 × Acrylic Board 1 × USB to DC Cable 1 × User Manual

Review: My setup: Denon DSD DAC, Schiit Sys, Schiit Magni +, Bellari EQ570, Douk Audio U10, Hifiman Sundara Closed Back, Sennheiser HD 569, Sennheiser HD 280, AKG Q701. Lossless FLAC and High Res Music including DSD 64. Audrivana Music Player for Mac. Mac Mini 2024. MacBook Air. Move over Schiit Vali, there's a new Budget Tube Amp in town. Yes, it's that Good. My older Tube Amp died and I researched until I concluded that this Douk U10 fits my budget without sacrificing on sound quality and I was pleasantly surprised. A 5V Power chord is a must, don't waste your time with a USB connection since it will introduce noise and will not reveal the true potential of this little gem. Warm up time for the U10 is about 15 - 20 mins. I was not getting the most of my Sundara Closed Back with my audio setup until I added a Bellari EQ570 and the Douk Audio U10 Tube AMP. My Sundara came to life since it needed a some EQ and a matching amp like the U10 and its now heavenly bliss listening to Lossless and High Res. music. The Sundara has bass to die for, this headphone is lush with perfect lows, mids and highs. I now understand why Hifiman headphones are so popular Don't be fooled by "Audiophiles/Audiofools". Get this little champ before it's discontinued for an another model. I plan to get a second one as a backup. This little champ is highly recommended but without an actual 5V AC power supply, it will be noisy. Its dead quiet with a 5V Power Supply sold right here at desertcart. Highly recommended.
Review: So it may be silly to be in love with a small tube buffer headphone amp but goodness this device is so fun and sounds so good. I just recently bought a good pair of headphones, Kiwi by Linsoul, and I tried a different headphone amp did not like it so I took a chance on this rather inexpensive device. I had a couple of improvements in the tube department so I added those listen to it for a few days and then added two new op-amps. Lme49720. They have a lot of clarity and they work beautifully with the tubes. Currently listening to Fleesh, a great Brazilian band and their tribute album to Marillion. Beautiful. Thank you Douk.

## Features

- U10 headphone amplifier with strong power: stereo 3.5mm AUX and RCA inputs, compatible with most audio source such as MP3, phones, computers, CD players etc.. Dual headphone jacks (3.5/6.35mm) output up to 1100mW, easily to drive all 18-600Ω headphones; U10 also can be used as a preamp to improve the sound quality for amplifiers or active speakers.
- Advanced design and HIFI sound: innovative built-in voltage boost circuit, U10 always works at a high voltage of 24V even only powered by DC 5V, the sound with deadly quiet background, amazing purity and transparency, accurate position and wide sound field, easy use and unrivalled sound are both achieved at the same time.
- Pluggable design with higher playability: 2PCS 6A2 tubes are adopted to soften and warm the audio, sounds real and natural, full and mellow, delicate and sweet. Both tubes and op amps are designed with pluggable socket, convenient for tube rolling, op amp upgrading and sound-shaping, different styles of sound can be enjoyed easily.
- Excellent manufacturing and most cost-effective: all metal case with good shielding, pure ceramic tube socket with antioxidant contact etc., U10 provides excellent sound and strong power for your headphones in such a mini size, specially suitable for the audiophiles who love listening to vocals, string music, light or classic music etc..

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C1MT8DG8 |
| Audio Output Type | 3.5mm / 6.35mm headphone jack |
| Audio input compatible with the item | 3.5mm AUX / Stereo RCA |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #246,663 in Electronics ( See Top 100 in Electronics ) #446 in Hi-Fi Amplifiers |
| Brand | Douk Audio |
| Connector Type | 3.5mm, RCA |
| Customer Reviews | 4.1 4.1 out of 5 stars (103) |
| Date First Available | 1 September 2023 |
| Item Dimensions LxWxH | 9.5 x 6.9 x 3 Centimeters |
| Item Weight | 200 g |
| Item model number | U10 |
| Manufacturer | Douk Audio |
| Model | U10 |
| Mounting Hardware | 1 × Acrylic Board, 1 × U10 Headphone Amplifier, 1 × USB to DC Cable, 1 × User Manual, 2 × 6A2 Tube |
| Number of items | 1 |
| Product Dimensions | 9.5 x 6.9 x 3 cm; 199.58 g |
| Speaker Surround Sound Channel Configuration | 5 1 channel |
| Tuner Technology | FM |

## Images

![U10 Mini Tube Headphone Amplifier HiFi Stereo Preamp for Home Speaker - Image 1](https://m.media-amazon.com/images/I/71sOReNfoIL.jpg)

## Questions & Answers

**Q: What is the output impedance? trying to figure out if this would be suitable for sensitive iems.**
A: Hello. It is suitable for 18-600Ω headphones.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***N on 27 January 2025*

My setup: Denon DSD DAC, Schiit Sys, Schiit Magni +, Bellari EQ570, Douk Audio U10, Hifiman Sundara Closed Back, Sennheiser HD 569, Sennheiser HD 280, AKG Q701. Lossless FLAC and High Res Music including DSD 64. Audrivana Music Player for Mac. Mac Mini 2024. MacBook Air. Move over Schiit Vali, there's a new Budget Tube Amp in town. Yes, it's that Good. My older Tube Amp died and I researched until I concluded that this Douk U10 fits my budget without sacrificing on sound quality and I was pleasantly surprised. A 5V Power chord is a must, don't waste your time with a USB connection since it will introduce noise and will not reveal the true potential of this little gem. Warm up time for the U10 is about 15 - 20 mins. I was not getting the most of my Sundara Closed Back with my audio setup until I added a Bellari EQ570 and the Douk Audio U10 Tube AMP. My Sundara came to life since it needed a some EQ and a matching amp like the U10 and its now heavenly bliss listening to Lossless and High Res. music. The Sundara has bass to die for, this headphone is lush with perfect lows, mids and highs. I now understand why Hifiman headphones are so popular Don't be fooled by "Audiophiles/Audiofools". Get this little champ before it's discontinued for an another model. I plan to get a second one as a backup. This little champ is highly recommended but without an actual 5V AC power supply, it will be noisy. Its dead quiet with a 5V Power Supply sold right here at Amazon. Highly recommended.

### ⭐⭐⭐⭐⭐ Review
*by S***S on 5 October 2025*

So it may be silly to be in love with a small tube buffer headphone amp but goodness this device is so fun and sounds so good. I just recently bought a good pair of headphones, Kiwi by Linsoul, and I tried a different headphone amp did not like it so I took a chance on this rather inexpensive device. I had a couple of improvements in the tube department so I added those listen to it for a few days and then added two new op-amps. Lme49720. They have a lot of clarity and they work beautifully with the tubes. Currently listening to Fleesh, a great Brazilian band and their tribute album to Marillion. Beautiful. Thank you Douk.

### ⭐⭐⭐⭐⭐ Review
*by A***I on 12 May 2025*

Embalagem excelente, entrega no prazo. Ótimo equipamento, sonoridade muito boa. As vozes, os instrumentos musicais, apresentam-se com nova roupagem!

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-28*