---
product_id: 402592128
title: "FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker"
brand: "kguss"
price: "€ 173.81"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/402592128-fx-audio-tube-02-pro-tube-headphone-amplifier-vacuum-5725
store_origin: GR
region: Greece
---

# Output power: 850mW Supports 32-600 ohms High gain mode: +2.5dB FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker

**Brand:** kguss
**Price:** € 173.81
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Audio Game with Tube-02 Pro!

## Quick Answers

- **What is this?** FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker by kguss
- **How much does it cost?** € 173.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/402592128-fx-audio-tube-02-pro-tube-headphone-amplifier-vacuum-5725)

## Best For

- kguss enthusiasts

## Why This Product

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

## Key Features

- • **Tube Magic:** Enjoy the warm, rich tones of 5725 tubes for an immersive listening experience.
- • **Stylish Design:** Elevate your audio setup with a sleek, black frosted finish.
- • **Customizable Fun:** Swap tubes for a personalized sound journey and enhanced playability.
- • **Unleash Your Sound:** Experience audiophile-grade clarity with the FX-Audio Tube-02 Pro.
- • **Versatile Connectivity:** Easily connect to tablets, phones, and more with multiple input options.

## Overview

The FX-Audio Tube-02 Pro is a high-performance Class-A tube headphone amplifier that supports a wide range of headphones (32-600 ohms) and delivers an impressive output power of 850mW. Featuring a stylish black frosted design, it offers versatile connectivity options and the ability to swap tubes for a customized audio experience. Perfect for audiophiles and casual listeners alike, this amplifier enhances sound quality for various audio sources.

## Description

FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker

## Features

- TUBE-02 PRO is a Class-A tube headphone amp,which uses 5725 tubes to amplify signal.It has a strong tube flavor,fine tone,and high performance,bringing extremely high-quality listening experience
- Adopt transistors for class A buffer,strong output power can easily drive any kind earphones,,output power up to 850mW.And audiophile-grade coupling capacitors is adopted to td the sound more sweet and transparent
- Has two sets of line outputs,through the tube.The design is novel, and the variant amplification of internal transistor and electron tube is processed by tube output,which solves the trouble of plugging in and out when enthusiasts use multiple sound sources
- It can be used as the Pre-amplifier of all kinds of audio amplifier , active speaker or phono/turntable, and improve the sound quality of audio amplifier or active speaker.The black frosted texture looks simple and elegant，makes it fashionable and attractive, bringing wonderful auditory and visual enjoyment, very suitable for home and desktop audio system
- With high gain mode, the gain can be increased by +2.5dB. The tube can be replaced by 6J1, 6J2 tubes freely (other models are temporarily incompatible),adding much fun and higher playability

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material Type | Metal |
| Color | Black |
| Item Weight | 0.7 Kilograms |
| Item Dimensions D x W x H | 7.87"D x 9.84"W x 2.76"H |
| Power Source | Corded Electric |
| Output Channel Quantity | 2 |
| Amplifier Type | Tube |
| Connector Type | 6.35mm and 3.5mm Jack, RCA |
| Speaker Size | 25 Centimeters |
| Compatible Devices | TABLET PC, DAC, PHONE, MAC, SET-TOP BOX |
| Output Wattage | 6 Watts |

## Product Details

- **Brand:** KGUSS
- **Color:** Black
- **Compatible Devices:** DAC, MAC, PHONE, SET-TOP BOX, TABLET PC
- **Material:** Metal
- **Output Wattage:** 6 Watts

## Images

![FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker - Image 1](https://m.media-amazon.com/images/I/51h0L+pAi9L.jpg)
![FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker - Image 2](https://m.media-amazon.com/images/I/714BDu4fGXL.jpg)
![FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker - Image 3](https://m.media-amazon.com/images/I/71NcUeV+fUL.jpg)
![FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker - Image 4](https://m.media-amazon.com/images/I/61oXhsQEyNL.jpg)
![FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker - Image 5](https://m.media-amazon.com/images/I/71iNiA7zvvL.jpg)

## Questions & Answers

**Q: How about using it as a preamplifier for a phonograph**
A: I use them on my 3 turntables

**Q: Would this work on the DT 880 Pro 250  ohms?**
A: The headphone power output of TUBE-02PRO can support 32-600 Ω, DT880PRO is 250 Ω, it is suitable for use.

**Q: Does the tube glow brighter after the device has been in use for a while?**
A: Having used around 1 1/2 months   I have not noticed the change in brightness of the tubes 
It seems almost the same

**Q: Are you satisfied with the vacuum tubes? Have you tried to replace other vacuum tubes**
A: I am happy with the orig tubes  did not have the chance to change the tubes yet    Maybe someday soon

## Frequently Bought Together

- FX-Audio Tube-02 Pro Tube Headphone Amplifier, Vacuum 5725 Tube Preamp, Mini Hi-Fi Integrated Stereo Class A amp Supports 32-600 ohms of Headphones, for Stereo Amplifier/Active Speaker
- Tan QY 2RCA to 2RCA Cable 3Ft, Gold-Plated 2 RCA Male to 2 RCA Male Stereo Audio Cable for Home Theater, HDTV, Gaming Consoles, Hi-Fi Systems (3Ft/1M)
- Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-23*