---
product_id: 278513610
title: "FX AUDIO Bluetooth Tube Preamp & Headphone Amp & Bluetooth Receiver+ESS9023 GE5654 HiFi Bluetooth 5.0 Vaccum Tube Preamp with RCA BT Input & RCA/3.5mm Headphone Output Bass Treble Control (Silver)"
brand: "fx-audio-"
price: "R$87"
currency: BRL
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.br/products/278513610-fx-audio-bluetooth-tube-preamp-and-headphone-amp-and-bluetooth
store_origin: BR
region: Brazil
---

# Bluetooth 5.0 50W Output Power Bass/Treble Control FX AUDIO Bluetooth Tube Preamp & Headphone Amp & Bluetooth Receiver+ESS9023 GE5654 HiFi Bluetooth 5.0 Vaccum Tube Preamp with RCA BT Input & RCA/3.5mm Headphone Output Bass Treble Control (Silver)

**Brand:** fx-audio-
**Price:** R$87
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate Your Listening Experience with Vintage Vibes!

## Quick Answers

- **What is this?** FX AUDIO Bluetooth Tube Preamp & Headphone Amp & Bluetooth Receiver+ESS9023 GE5654 HiFi Bluetooth 5.0 Vaccum Tube Preamp with RCA BT Input & RCA/3.5mm Headphone Output Bass Treble Control (Silver) by fx-audio-
- **How much does it cost?** R$87 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/278513610-fx-audio-bluetooth-tube-preamp-and-headphone-amp-and-bluetooth)

## Best For

- fx-audio- enthusiasts

## Why This Product

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

## Key Features

- • **Unleash Your Sound:** Experience dynamic audio with the GE5654 vacuum tube.
- • **Seamless Connectivity:** Bluetooth 5.0 with APTX for low-latency streaming.
- • **High-Quality Components:** Crafted with OPA1656IDR chip for superior sound fidelity.
- • **Tailored Audio Experience:** Independent bass, treble, and volume controls for personalized sound.
- • **Versatile Inputs & Outputs:** Connect effortlessly with RCA and Bluetooth options.

## Overview

The FX AUDIO Bluetooth Tube Preamp & Headphone Amp combines modern Bluetooth 5.0 technology with classic vacuum tube sound, offering a unique audio experience. With customizable bass and treble controls, versatile input options, and high-quality components, this preamp is designed for audiophiles seeking both performance and style.

## Description

Full description not available

## Features

- 【Ge5654 Tube Preamp with Headphone Amp】 The TUBE-03MKII tube preamp features preamp + Bluetooth 5.0 audio receiver + tube buffer headphone amp + with dac function. GE5654 vacuum tube with tube buffer circuit has dynamic and sweet sound quality and can be replaced by 6J1, 6J4, 6AK5, 6K4 tubes for different listening feelings. Note: It is not a phono preamp or amplifier, not for turntable, not for car audio
- 【Bluetooth 5.0 Receiver with DAC】 It uses QCC3008 Bluetooth 5.0 chip, support APTX and has low latency. Bluetooth receiving audio signal I2S output and ESS9023 dac chip can greatly improve the Bluetooth audio effect, high signal-to-noise ratio, low distortion
- 【Bass/Treble/Volume Control】 It has independent bass, treble and volume control knobs, which helps you set sound effect easily according to your preference. Long press Select button to power on/off, and short press to switch signal input. Power supply: 12V 1A
- 【Input & Output】 Two inputs - RCA and Bluetooth input, compatible with smart phones, laptop, tablet, DVD, MP3/4, etc. (RCA cable is included in the package.) Two outputs - RCA and headphone amp. RCA output connect with active speakers or amplifier(can not connect with passive speakers directly). Headphone amp output jack is compatible with 3.5mm headphone
- 【High Quality Components】 The headphone amp op chip is OPA1656IDR which can be replaced by MUSE02 or AD827. (Need professional tools and operation). MCU intelligent control and soft switch for switch input channel. Independent power supply design with shielded function effectively reduces interference. Relay is used to switch signal, better than normal switches without huge pops when turn on or off the device

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Silver |
| Number of Channels | 2 |
| Output Power | 50 Watts |
| Audio Output Type | Headphones, Speakers |
| Wireless Technology | Bluetooth |
| Control Method | Touch |
| Connector Type | RCA, 3.5mm Jack |
| Connectivity Technology | RCA, Bluetooth |
| Compatible Devices | Speaker |

## Product Details

- **Brand:** FX-AUDIO-
- **Connectivity Technology:** RCA, Bluetooth
- **Special Feature:** APTX, DAC, Touchscreen
- **Compatible Devices:** Speaker
- **Connector Type:** RCA, 3.5mm Jack
- **Audio Output Mode:** Stereo, Headphone
- **Color:** Silver
- **Output Power:** 50 Watts
- **Number of Channels:** 2
- **Control Method:** Touch

## Images

![FX AUDIO Bluetooth Tube Preamp & Headphone Amp & Bluetooth Receiver+ESS9023 GE5654 HiFi Bluetooth 5.0 Vaccum Tube Preamp with RCA BT Input & RCA/3.5mm Headphone Output Bass Treble Control (Silver) - Image 1](https://m.media-amazon.com/images/I/61hFFx9tdcL.jpg)
![FX AUDIO Bluetooth Tube Preamp & Headphone Amp & Bluetooth Receiver+ESS9023 GE5654 HiFi Bluetooth 5.0 Vaccum Tube Preamp with RCA BT Input & RCA/3.5mm Headphone Output Bass Treble Control (Silver) - Image 2](https://m.media-amazon.com/images/I/61NHZaNpbyL.jpg)
![FX AUDIO Bluetooth Tube Preamp & Headphone Amp & Bluetooth Receiver+ESS9023 GE5654 HiFi Bluetooth 5.0 Vaccum Tube Preamp with RCA BT Input & RCA/3.5mm Headphone Output Bass Treble Control (Silver) - Image 3](https://m.media-amazon.com/images/I/61N7tG5uahL.jpg)
![FX AUDIO Bluetooth Tube Preamp & Headphone Amp & Bluetooth Receiver+ESS9023 GE5654 HiFi Bluetooth 5.0 Vaccum Tube Preamp with RCA BT Input & RCA/3.5mm Headphone Output Bass Treble Control (Silver) - Image 4](https://m.media-amazon.com/images/I/71PnwmsPArL.jpg)
![FX AUDIO Bluetooth Tube Preamp & Headphone Amp & Bluetooth Receiver+ESS9023 GE5654 HiFi Bluetooth 5.0 Vaccum Tube Preamp with RCA BT Input & RCA/3.5mm Headphone Output Bass Treble Control (Silver) - Image 5](https://m.media-amazon.com/images/I/71MJV87B7RL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Superb value for a tube buffer bluetooth streamer
*by E***O on November 11, 2020*

Just received and plugged into my Dynaco tube system. Very pleased so far, easy pairing, sounds great, I'll be running some tests for specs in a few days after tubes have burned in a bit. This review and attached pics are for the TUBE-03 Mk II, with built in bluetooth. I chose this because of the latest gen bluetooth chip as well as the ESS D/A chip. Both of these are used in much more costly bluetooth streamers, that don't use a tube buffer stage. As such it represents a great value, and the construction, knobs and jacks are high quality.

### ⭐ Essentially DOA
*by J***C on June 18, 2022*

My preamp arrived essentially DOA. It powered up and that was the only good thing about it. Correctly wiring it between my RTR and Onkyo receiver resulted in no signal to the receiver. Pairing my telephone to the preamp again resulted in no output to the receiver. Plugging in headphones to the preamp resulted in muddied very weak audio. Also the on/off button didn't work - the preamp was always on - the only way to turn if off was to unplug the power source. Went thru the troubleshooting procedure with Amazon failed to correct the problems. Returned for refund and will try a different branded preamp.

### ⭐⭐⭐ High fidelity/clarity is accurate with this, likein' on that very much...
*by M***T on March 8, 2023*

The caveats... Lacking in turn on/power up delay/squelching, pops/thumps and with too high of gain with it and/or other components (audio and/or multimedia system dependent) could result in damage to other components and/or speakers. The gain/volume control, well, unsure if it'll last; notchy beast it is.(The unit itself, other than those aspects, is great.)The tubes are good, have had them for roughly 6mo. and are hanging in here; will have to see the longevity on them. The acoustical soundfield reproduction is nicely for such a small and moderately priced piece of equipment.[MblTchXprt]

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**Shop now:** [https://www.desertcart.com.br/products/278513610-fx-audio-bluetooth-tube-preamp-and-headphone-amp-and-bluetooth](https://www.desertcart.com.br/products/278513610-fx-audio-bluetooth-tube-preamp-and-headphone-amp-and-bluetooth)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-02*