---
product_id: 53477757
title: "Fosi Audio BL20C Bluetooth 5.0 Stereo Audio Receiver Amplifier 320 Watts 2.1 CH Mini Hi-Fi Class D TDA7498E Integrated Amp U-Disk Player for Home Passive Speakers Powered Subwoofer(with Power Supply)"
brand: "fosi audio"
price: "A$247"
currency: AUD
in_stock: true
reviews_count: 9
category: "Fosi Audio"
url: https://www.desertcart.com.au/products/53477757-fosi-audio-bl20c-bluetooth-5-0-stereo-audio-receiver-amplifier
store_origin: AU
region: Australia
---

# 320W max output power Bluetooth 5.0 + U-Disk + RCA inputs Bass, treble & volume analog controls Fosi Audio BL20C Bluetooth 5.0 Stereo Audio Receiver Amplifier 320 Watts 2.1 CH Mini Hi-Fi Class D TDA7498E Integrated Amp U-Disk Player for Home Passive Speakers Powered Subwoofer(with Power Supply)

**Brand:** fosi audio
**Price:** A$247
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Fosi Audio BL20C Bluetooth 5.0 Stereo Audio Receiver Amplifier 320 Watts 2.1 CH Mini Hi-Fi Class D TDA7498E Integrated Amp U-Disk Player for Home Passive Speakers Powered Subwoofer(with Power Supply) by fosi audio
- **How much does it cost?** A$247 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/53477757-fosi-audio-bl20c-bluetooth-5-0-stereo-audio-receiver-amplifier)

## 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

- • **Compact & Portable:** Sleek, palm-sized design fits perfectly in any modern workspace or home setup.
- • **Hi-Fi Audio Fidelity:** Advanced TDA7498E chip guarantees crystal-clear, immersive sound for audiophiles and casual listeners alike.
- • **Seamless Connectivity:** Bluetooth 5.0, U-Disk, and RCA inputs ensure effortless streaming from any device.
- • **Powerhouse Performance:** 320W Class D amplifier delivers clean, room-filling sound with minimal distortion.
- • **Tailored Audio Control:** Dedicated knobs for bass, treble, and volume let you customize your soundscape.

## Overview

The Fosi Audio BL20C is a compact 2.1 channel Class D stereo amplifier featuring Bluetooth 5.0, U-Disk playback supporting multiple audio formats, and RCA inputs. Powered by the STMicroelectronics TDA7498E chip, it delivers up to 320W of clean, hi-fi sound with smart thermal and overload protection. Its versatile connectivity and analog controls for bass, treble, and volume make it ideal for driving passive speakers and powered subwoofers in home theater or desktop audio setups.

## Description

desertcart.com: Fosi Audio BL20C Bluetooth 5.0 Stereo Audio Receiver Amplifier 320 Watts 2.1 CH Mini Hi-Fi Class D TDA7498E Integrated Amp U-Disk Player for Home Passive Speakers Powered Subwoofer(with Power Supply) : Electronics

Review: Blown Away! - Although I had watched many great reviews on this item, such things remain very subjective. I had fairly high expectations from the reviews, but still really didn't know what to expect. I was able to compare it to another popular budget brand unit in a similar price range. Although this other unit was built well and had a bunch of great features....in terms of sound and power...there was absolutely no comparison. I was amazed at the clean power and volume of the Fosi. I first ran it with Polk Mini Monitors which are small bookshelf speakers with 5.25 drivers. I just couldn't believe what I was getting out of those speakers. I then switched to a much larger set of floorstanding speakers with 8in drivers. Again... Just Blown away! This little Fosi had no problem driving them with great sounding bass, mid/high clarity and plenty of headroom. I honestly don't think I would ever have to turn this unit up beyond 12 o'clock. The Fosi is built well, the Bluetooth works great, I love the USB input, it sounds awesome and the price is more than right for what your getting. It's tiny and puts out good clean power. I wish I had some 3 way speakers with 12in drivers to test this on. In any regard, unless you need something highly specialized, this amp should make you very happy. I highly recommend this Fosi product!
Review: Great 2.1 speaker + sub solution - This speaker amp works very well. I connected 2x 6ohm 120w speakers, and a 130w sub and they sound great. SUMMARY: I had a 5.1 surround sound system (2010 model) but the receiver died. The speakers I had for it connected through the bare speaker wire pinch connectors (no banana plugs or RCA). This amp had the connections I needed for those speakers. I bought some banana plugs to go with it to make the setup easier (I would recommend this). I'm no audio expert so I can't tell you how this would work as a DIY amp for an audiophile setup or how amazing the audio quality is compared to other products on the market. I can tell you that this was just about the ONLY 2.1 amp I could find for the speaker and sub that I had. Build quality simple and is not flashy; but it's solid and looks as the picture shows. It doesn't heat up like my old receiver did. It is pretty small so that could either be great, or not so great--so you decide. It's about the size of my hand. I WOULD recommend this amp. With that said the quality of sound is good for me. I just needed 2 speakers and a sub for my PC and this amp powers them just fine. It's rated up to 200w and 12ohm. I listen to music and watch videos using speakers, but I play all my games using a headset. The system gets pretty dang loud and so does the sub. (obviously compared to 5.1 it's not as powerful). You get the idea of why I got this though. Read the instructions first before you hook it up to your power. This comes with an AC-DC converter (much like your laptops) that is rated for 19v DC. Needless to say there is a lot of power initially going to the capacitors. So connect it to the amp, then the wall. Not vice a versa.

## Features

- Versatile Connectivity and Playback: The Fosi Audio BL20C is a Bluetooth 5.0 enabled 2.1 channel stereo amplifier and U-disk player, perfect for home theater speaker systems. Its compact Class D power amp design allows for convenient and portable use. The U-Disk input supports popular audio formats such as MP3, WMA, APE, FLAC, and WAV. Enjoy flexible connection options including U-disk, Bluetooth, and RCA input, all capable of driving passive speakers and powered subwoofers to enhance your audio system.
- Powerful Audio Performance: The BL20C stereo receiver amplifier features the STMicroelectronics TDA7498E chip, delivering robust audio performance. This dual BTL class-D audio amplifier is designed for home speaker systems and operates with a single power supply. It includes smart protection, thermal overload protection, small offset (<20 mV), standby/mute features, and differential inputs for minimal common-mode noise, ensuring a superior audio experience.
- Hi-Fi Sound Quality: Experience exceptional sound quality with the BL20C mini amplifier's advanced circuit design, which guarantees hi-fi sound. Stream music from your favorite media services effortlessly and without compromising on sound quality. The BL20C is compatible with the latest devices such as iPhone/Android, iPod, iPad, PC, laptop, computer, TV, DVD, and more.
- Enhanced Control Options: The BL20C stereo amp offers a new level of control with various knobs for bass, treble, volume, and input mode switch. Additionally, it includes controls for the previous song, next song, and play/pause functions. These features set the amplifier apart from traditional audio amplifiers, with a powerful MAX output of up to 320W, allowing for a customized listening experience.
- Complete Package: BL20C stereo power amplifier x1, Bluetooth antenna x1, User Manual x1, Power Adapter x1, and AC Cord x1.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077QPTPVW |
| Best Sellers Rank | #50,776 in Electronics ( See Top 100 in Electronics ) #295 in Audio Component Amplifiers |
| Customer Reviews | 4.5 4.5 out of 5 stars (906) |
| Date First Available | November 24, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.29 pounds |
| Item model number | BL20C |
| Manufacturer | Fosi Audio |
| Product Dimensions | 4.84 x 4.57 x 1.3 inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Fosi Audio
- **Color:** Black
- **Compatible Devices:** Smartphone, Speaker
- **Connectivity Technology:** Bluetooth, USB
- **Connector Type:** RCA
- **Controller Type:** Android
- **Item Weight:** 2.29 Pounds
- **Special Feature:** Volume Control
- **Surround Sound Channel Configuration:** 2.1 Channel

## Images

![Fosi Audio BL20C Bluetooth 5.0 Stereo Audio Receiver Amplifier 320 Watts 2.1 CH Mini Hi-Fi Class D TDA7498E Integrated Amp U-Disk Player for Home Passive Speakers Powered Subwoofer(with Power Supply) - Image 1](https://m.media-amazon.com/images/I/51YbKbR08FL.jpg)

## Questions & Answers

**Q: How can this amp deliver 200w (output power: 50w+50w+100w) if the power supply only delivers 100w? at the same time it says the psu is ’matched’?**
A: I believe some of the specs for this amp are inaccurate and I'm not sure what the actual ratings are. Regardless, I have been running this amp for a year with speakers from a 540W Sony MHC-EC909IP https://www.amazon.com/Sony-MHCEC909iP-System-Discontinued-Manufacturer/dp/B003GZDB1Q after the main unit broke. This amp drives the speakers just as well as the Sony unit and I was happily surprised with its performance. Again, Im unsure of the actual specs, but I wanted to give you a reference of the amps actual capabilities.

**Q: How can this amp deliver 200w (50w+50w+100w) if the power supply only delivers 100w?**
A: With the power supply it comes with, it can't.  Most people will be happy with 100w total watts, especially since it can be divided between the channels moment by moment.  That's better than a 25x2+50W amp, since the sub on this could be driven with all the input power, if there was no audio needing the L & R.   However, yes, if you want to get the full power out of this amp, and it has honest ratings, and won't distort or overheat at full output, you'd need to buy at least a 250W PSU (assuming 80% efficiency at full load).   A 24V 10A supply isn't unusual, but will run about $40 if you don't get the absolute cheapest one out there.

**Q: Can i use an a/b switch at the input to switch between a cd player,and,a turntable?**
A: Yes you can !!!!! But you will need a pre amplifier for the turntable if it a mag. cartage !!!!!

**Q: if I turn up the master volume does the sub volume increase with it, or do I need to adjust the bass volume to not be drowned out by speakers**
A: The Master volume controls ALL the channels, including the subwoofer. The BASS VOL  volune knob adjusts the subwoofer volume only, so you can set it as desired relative to the main L & R channels, along with the FREQ knob, which adjusts the subwoofer hi-frequency cutoff.  Once you’ve got the proper balance set, then you use the Master volume to adjust the overall listening level.  The TREBLE and BASS knobs adjust these frequencies for ALL channels, according to you preference.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Blown Away!
*by S***P on April 24, 2024*

Although I had watched many great reviews on this item, such things remain very subjective. I had fairly high expectations from the reviews, but still really didn't know what to expect. I was able to compare it to another popular budget brand unit in a similar price range. Although this other unit was built well and had a bunch of great features....in terms of sound and power...there was absolutely no comparison. I was amazed at the clean power and volume of the Fosi. I first ran it with Polk Mini Monitors which are small bookshelf speakers with 5.25 drivers. I just couldn't believe what I was getting out of those speakers. I then switched to a much larger set of floorstanding speakers with 8in drivers. Again... Just Blown away! This little Fosi had no problem driving them with great sounding bass, mid/high clarity and plenty of headroom. I honestly don't think I would ever have to turn this unit up beyond 12 o'clock. The Fosi is built well, the Bluetooth works great, I love the USB input, it sounds awesome and the price is more than right for what your getting. It's tiny and puts out good clean power. I wish I had some 3 way speakers with 12in drivers to test this on. In any regard, unless you need something highly specialized, this amp should make you very happy. I highly recommend this Fosi product!

### ⭐⭐⭐⭐⭐ Great 2.1 speaker + sub solution
*by U***H on September 14, 2018*

This speaker amp works very well. I connected 2x 6ohm 120w speakers, and a 130w sub and they sound great. SUMMARY: I had a 5.1 surround sound system (2010 model) but the receiver died. The speakers I had for it connected through the bare speaker wire pinch connectors (no banana plugs or RCA). This amp had the connections I needed for those speakers. I bought some banana plugs to go with it to make the setup easier (I would recommend this). I'm no audio expert so I can't tell you how this would work as a DIY amp for an audiophile setup or how amazing the audio quality is compared to other products on the market. I can tell you that this was just about the ONLY 2.1 amp I could find for the speaker and sub that I had. Build quality simple and is not flashy; but it's solid and looks as the picture shows. It doesn't heat up like my old receiver did. It is pretty small so that could either be great, or not so great--so you decide. It's about the size of my hand. I WOULD recommend this amp. With that said the quality of sound is good for me. I just needed 2 speakers and a sub for my PC and this amp powers them just fine. It's rated up to 200w and 12ohm. I listen to music and watch videos using speakers, but I play all my games using a headset. The system gets pretty dang loud and so does the sub. (obviously compared to 5.1 it's not as powerful). You get the idea of why I got this though. Read the instructions first before you hook it up to your power. This comes with an AC-DC converter (much like your laptops) that is rated for 19v DC. Needless to say there is a lot of power initially going to the capacitors. So connect it to the amp, then the wall. Not vice a versa.

### ⭐⭐⭐⭐ Works well, Power supply is small (Beware)
*by A***R on June 19, 2023*

I needed something outside to power my dual channel Polk Audio Atrium8 speaker. I actually went out and bought a Sonly receiver, your typical brick bulky receiver. I then found these little units and wanted to give them a try. I opted for this Fosi Unit I have the little thing mount behind the TV (On the back of the TV) so its out of sight type deal. Sound is great, better than the giant receiver One thing to note and there is another review about this, this power supply it comes with cannot produce 320w with the 24v/4.5A power supply. I upgraded the power supply to the 32v/5A and this gave me about 80W per channel and was good enough. I did email Fosi Audio support and asked what power supply is out there that can produced the 320W and they where unable to find me an answer. So why they have this listed at 320W, I don't know but just be careful. I think out of the box you will get 60W per channel at best. With this I give it a 4 star review. Aside from this the unit does well. Have it hooked up to the TV so football games are nice and clear and the unit also has Bluetooth

## Frequently Bought Together

- Fosi Audio BL20C Bluetooth 5.0 Stereo Audio Receiver Amplifier 320 Watts 2.1 CH Mini Hi-Fi Class D TDA7498E Integrated Amp U-Disk Player for Home Passive Speakers Powered Subwoofer(with Power Supply)
- FosPower Banana Plugs 2 Pairs / 4 pcs, Closed Screw 24K Gold Plated Banana Speaker Plug Connectors for Speaker Wire, Wall Plate, Home Theater, Audio/Video Receiver, Amplifiers and Sound Systems
- Amazon Basics Speaker Cable, Easy Assembly, 16-Gauge, Bronze, 100 ft

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-05*