---
product_id: 512761052
title: "Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers"
brand: "fosi audio"
price: "€ 249.44"
currency: EUR
in_stock: true
reviews_count: 10
category: "Fosi Audio"
url: https://www.desertcart.pt/products/512761052-fosi-audio-bt30d-pro-mini-bluetooth-amplifier-hifi-2-1
store_origin: PT
region: Portugal
---

# Bluetooth 5.0 with 15m stable range 165W x2 + 350W power output Adjustable bass & treble controls Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers

**Brand:** fosi audio
**Price:** € 249.44
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound game—small amp, massive impact!

## Quick Answers

- **What is this?** Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers by fosi audio
- **How much does it cost?** € 249.44 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/512761052-fosi-audio-bt30d-pro-mini-bluetooth-amplifier-hifi-2-1)

## Best For

- fosi audio enthusiasts

## Why This Product

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

## Key Features

- • **Powerhouse Performance:** Dual TPA3255 chips deliver crystal-clear 165W x2 + 350W subwoofer power for immersive sound.
- • **Compact & Durable Design:** Sleek all-metal chassis fits discreetly anywhere while promising long-lasting reliability backed by a 24-month warranty.
- • **Seamless Wireless Freedom:** Bluetooth 5.0 ensures effortless, stable connection up to 15 meters—perfect for home, office, or outdoor vibes.
- • **Tailored Audio Experience:** Dedicated bass frequency and volume knobs let you sculpt deep, natural lows to match your mood and space.
- • **Versatile 2.1 Channel Setup:** Easily power bookshelf speakers and subwoofers for a rich, cinematic soundstage that elevates any environment.

## Overview

The Fosi Audio BT30D Pro is a compact yet powerful 2.1 channel Bluetooth amplifier featuring dual Texas Instruments TPA3255 Class-D chips delivering 165W per channel plus 350W to a subwoofer. It offers precise bass and treble controls, Bluetooth 5.0 connectivity with a 15-meter range, and a durable all-metal build. Ideal for home, desktop, or outdoor use, it supports passive speakers and subwoofers with easy setup and reliable performance, backed by a 24-month warranty.

## Description

Buy Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers. Free delivery and returns on eligible orders.

Review: Very Good Little Amp - I am quite picky and want a clean, high-quality sound with plenty of volume when it comes to hifi. This is a very compact little amp (40mm high, 120mm wide and 160mm deep). It has a good quality feel and a reasonable weight to it. I am using it to drive 2 Q Acoustic Speakers (2020i) that are rated 75 watts at 6 Ohms. I have the amp connected via banana plugs. I would say the amp matches these really well and drives the speakers fully. Not too much and not too little. At max volume there is a touch of distortion but not that much and honestly whilst I do like loud music, I would not really want my music that loud in the kitchen, I have another set up for that elsewhere. The treble and base adjustment may in some ways seem old fashioned but I really like them as you can give it a little more base or treble depending on your speakers, the music and of course your personal preference. You can get graphic equalisers to add to your phone, etc, but the on-amp adjustment just seems more accessible. I am not using the bass driver and honestly I do not think I will. So why did I buy this amp when Fosi do a version with no bass driver? Well, desertcart had a discount that made this version only £5 more than the non-bass driver version. Another reason though was that this comes with a 32 volt power supply and the non-bass driver version ships with the 24 volt supply but can be upgraded to the 48 volt supply. This means you will not get full performance if you only buy the one that ships with 24 volt supply. You can upgrade on the Fosi website but not on the desertcart website. You can buy the 48volt power supply separately on desertcart but this pushes the price up quite a bit. So, therefore I preferred this slightly higher spec model that ships with the 32 volt supply from desertcart and this is the max supply allowed for this unit, I think. That was my logic and it would be interesting to know what Fosi themselves think about this and whether my deductions were correct. I think Fosi should add the 48 volt power supply option to the non-bass driver unit on desertcart. I use this in my kitchen and for me a key selling point is the size. I have built it in to the bottom of one of my kitchen cupboards and of course its small size means it is very discrete. The Bluetooth works fine. Still good volume. It connects easily and makes a little bleep to signal connection. You can also connect directly if you have the right cables. The sound quality and volume are marginally higher and cleaner when connected directly, but the Bluetooth still sounds good. My arrangement slightly compromises the view to the Bluetooth antenna, which I have rotated so it is exposed somewhat. This does not seem to make much difference and the range is still fine. I am using it with iPads, iPhones and Samsung phones. All work fine. So I am very happy with this Fosi unit but I would recommend you look at their full range, perhaps on their website before you decide the best one for you. I went for desertcart because I knew it would come quickly and be an easy return if I did not like it. I am a bit shocked and pleasantly surprised that such a tiny and affordable little unit can be so good. Well done Fosi. (Ultimately I decided to get the non-bass model with the 48 volt power supply. This does give slightly greater volume with less distortion which is why I have updated this review.)
Review: Great value - Bought this to pair with a cheap turntable to play through the speakers of an old home entertainment centre that died a few years ago. The speakers were 2 ohm which limited my choices a bit, but I thought I'd take a punt on this little amp. So far, it's been great. Connecting it up was easy, standard phono plugs to the turntable and banana plugs to the speakers. The banana plugs weren't actually necessary as the port caps are screwable, so you can just attach the speaker cables and screw them down - but as I knew I was going to moving the whole system around until I was happy with it, I fitted the banana plugs to make it less of a hassle. The amp also has Bluetooth in, so you can play music from your phone too. I've got this set up as a 2.1 system, with a passive subwoofer and the amp drives that fine. The ONLY way this could be improved for me would be for them to add a balance control to even out my (by necessity) dodgy speaker placement. It all sounds great and for the price, I don't think you can go far wrong with this, so would recommend.

## Features

- 🔈2.1 CH Amplifier: The BT30D PRO integrated amp has two sets of passive speaker outputs and one set of passive subwoofer outputs. This allows you to easily set up a 2.1 home theater or other stereo HiFi audio systems.
- 🔈High Power with Great Sound: The BT30D PRO features two high-end Texas Instruments TPA3255 Class-D amplifier chips, delivering clear, pure sound without distortion or clipping while stably outputting up to 165W x 2 + 350W of power.
- 🔈Bass Beast: Gamers, movie buffs and music lovers alike will experience tight, smooth, and natural-sounding bass. There are two knobs designed for subwoofer, the SUB FREQ knob allows frequency adjustment of passive subwoofers from 0 to 300 Hz, and the SUB VOL knob sets their volume.
- 🔈Bluetooth 5.0: This Bluetooth amplifier automatically reconnects to the previous device when turned on. It maintains a stable connection and delivers clear audio over 15 meters, perfect for your yard, terrace, or poolside.
- 🔈Exquisite Craftsmanship: This little Amp comes nicely packaged with a solid feel to the case and the controls and connectors. The all-metal body ensures durability, and you can enjoy the peace of mind provided by Fosi Audio's 24-month warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09YNBHR73 |
| Best Sellers Rank | 6,121 in Climate Pledge Friendly ( See Top 100 in Climate Pledge Friendly ) 25 in AV Receivers & Amplifiers 6,123 in Climate Pledge Friendly: Shop All |
| Colour | Black |
| Compatible Devices | Speaker |
| Connector | RCA |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,527) |
| Date First Available | 9 Feb. 2023 |
| Item Weight | 680 g |
| Item model number | BT30D PRO |
| Material Type | Aluminum |
| Media Format | WAV, WMA |
| Output Wattage | 165 Watts |
| Product Dimensions | 15.24 x 12.7 x 2.54 cm; 680.39 g |
| Styling | Wireless |
| Voltage | 230 Volts |
| Wattage | 165 watts |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Fosi Audio
- **Colour:** Black
- **Compatible devices:** Speaker
- **Connectivity technology:** Bluetooth
- **Connector type:** RCA
- **Controller type:** Android
- **Item weight:** 1.5 Pounds
- **Special feature:** Built-In Bluetooth
- **Surround-sound channel configuration:** 2.1

## Images

![Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers - Image 1](https://m.media-amazon.com/images/I/51ai7X4dnLL.jpg)

## Questions & Answers

**Q: Can this connect to 4 wharfedale diamond 9.1 speakers and a denon m41 cd player? thanks.**
A: You can connect 2 passive speakers, 1 passive subwoofer, 1 powered speakers/powered subwoofer to DIY a stereo sound system.

**Q: Will this connect to a sonos bean gen 2**
A: Yes

**Q: What is the Wrms power output for 8 ohm speakers?**
A: The max power output is 165W×2+350W

**Q: What's the rms wattage not max?**
A: Hello, the maximum output value of this product is: 165W×2+350W. If your problem is not solved, you can contact our customer service, we have 24-Hour quick customer service for you.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Good Little Amp
*by S***R on 22 February 2024*

I am quite picky and want a clean, high-quality sound with plenty of volume when it comes to hifi. This is a very compact little amp (40mm high, 120mm wide and 160mm deep). It has a good quality feel and a reasonable weight to it. I am using it to drive 2 Q Acoustic Speakers (2020i) that are rated 75 watts at 6 Ohms. I have the amp connected via banana plugs. I would say the amp matches these really well and drives the speakers fully. Not too much and not too little. At max volume there is a touch of distortion but not that much and honestly whilst I do like loud music, I would not really want my music that loud in the kitchen, I have another set up for that elsewhere. The treble and base adjustment may in some ways seem old fashioned but I really like them as you can give it a little more base or treble depending on your speakers, the music and of course your personal preference. You can get graphic equalisers to add to your phone, etc, but the on-amp adjustment just seems more accessible. I am not using the bass driver and honestly I do not think I will. So why did I buy this amp when Fosi do a version with no bass driver? Well, Amazon had a discount that made this version only £5 more than the non-bass driver version. Another reason though was that this comes with a 32 volt power supply and the non-bass driver version ships with the 24 volt supply but can be upgraded to the 48 volt supply. This means you will not get full performance if you only buy the one that ships with 24 volt supply. You can upgrade on the Fosi website but not on the Amazon website. You can buy the 48volt power supply separately on Amazon but this pushes the price up quite a bit. So, therefore I preferred this slightly higher spec model that ships with the 32 volt supply from Amazon and this is the max supply allowed for this unit, I think. That was my logic and it would be interesting to know what Fosi themselves think about this and whether my deductions were correct. I think Fosi should add the 48 volt power supply option to the non-bass driver unit on Amazon. I use this in my kitchen and for me a key selling point is the size. I have built it in to the bottom of one of my kitchen cupboards and of course its small size means it is very discrete. The Bluetooth works fine. Still good volume. It connects easily and makes a little bleep to signal connection. You can also connect directly if you have the right cables. The sound quality and volume are marginally higher and cleaner when connected directly, but the Bluetooth still sounds good. My arrangement slightly compromises the view to the Bluetooth antenna, which I have rotated so it is exposed somewhat. This does not seem to make much difference and the range is still fine. I am using it with iPads, iPhones and Samsung phones. All work fine. So I am very happy with this Fosi unit but I would recommend you look at their full range, perhaps on their website before you decide the best one for you. I went for Amazon because I knew it would come quickly and be an easy return if I did not like it. I am a bit shocked and pleasantly surprised that such a tiny and affordable little unit can be so good. Well done Fosi. (Ultimately I decided to get the non-bass model with the 48 volt power supply. This does give slightly greater volume with less distortion which is why I have updated this review.)

### ⭐⭐⭐⭐⭐ Great value
*by A***R on 25 October 2025*

Bought this to pair with a cheap turntable to play through the speakers of an old home entertainment centre that died a few years ago. The speakers were 2 ohm which limited my choices a bit, but I thought I'd take a punt on this little amp. So far, it's been great. Connecting it up was easy, standard phono plugs to the turntable and banana plugs to the speakers. The banana plugs weren't actually necessary as the port caps are screwable, so you can just attach the speaker cables and screw them down - but as I knew I was going to moving the whole system around until I was happy with it, I fitted the banana plugs to make it less of a hassle. The amp also has Bluetooth in, so you can play music from your phone too. I've got this set up as a 2.1 system, with a passive subwoofer and the amp drives that fine. The ONLY way this could be improved for me would be for them to add a balance control to even out my (by necessity) dodgy speaker placement. It all sounds great and for the price, I don't think you can go far wrong with this, so would recommend.

### ⭐⭐⭐⭐ Big sound from a little box! The Fosi BT30D Pro is a serious HiFi contender at an afordable price.
*by S***Y on 22 April 2024*

I decided to give this little BT30D Pro unit a shot to see if I could breath some life into an old pair of Gale Model 4 Floor stands. I was blown away by the sound quality. They're rated at 6 Ohm, 10-120 Watts with a freq response of 38Hz-22kHz so they matched the BT30D Pro perfectly. They sounded better than I ever thought they could. I enjoyed the great range of sounds from punchy bass, warm mids and clean crisp highs. I had to adjust the volume to half way for bluetooth and back to 9-10 O'clock for my Pioneer CD player. Both sources sounded amazing, but I felt the CD player had the edge. To my ears there is a sweet spot with the volume where the separation was at its best, below that the sound felt flat. Unfortunately, there was a fault with the power switch when it arrived. I had to flick it on/off 3 times every time before it would power up. I contacted Amazon support and they were amazing and arranged a refund. I was reluctant to return it but I couldn't take the chance it might pack in completely. Despite the hassle, I decided to give Fosi a second chance, and I ordered the BT20A Pro because I don't plan on adding a passive sub. If I do add a sub, it'll be an active sub and this unit, just like the 30D, has a pre-out. Fingers crossed I'll have better luck with that one. The QA issue that should have been caught in the factory, and the volume sweet spot is why I'm docking a star.

## Frequently Bought Together

- Fosi Audio Bluetooth Subwoofer Amplifier 2.1, BT30D Pro Subwoofer Amp with TPA3255 Chips 165W x2+350W & Bass Treble Control, 2.1 Channel Sub Amplifier for Desktop/Outdoor/Bookshelf Speakers
- Banana Plugs with Dual Set Screws,Black and Red Aluminum Shell,6 Pairs
- Amazon Basics Speaker Cable, Easy Assembly, 16-Gauge, Bronze, 100 ft

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-31*