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Compact black Class D amplifier with touch remote, 4.8 by 4.6 by 1.3 inches

Fosi Audio BL20C 2.1 CH Bluetooth 5.0 Receiver Amplifier 320W

SKU CH-F4A6-QQS0M

A 2.1 channel Bluetooth 5.0 stereo amplifier with U-disk playback and 320 watts total power for passive speakers and a powered subwoofer

  • ColorBlack
  • Channels2
  • Remote Controltouch
  • Power Output320 watts
  • AudioStereo
  • Output320 watts
  • Bluetooth 5.0 streams music wirelessly from phones
  • U-Disk plays MP3, WMA, APE, FLAC, WAV files
  • RCA input connects TV, PC or legacy sources
  • TDA7498E chip delivers 320 W total power
  • Compact 4.84 x 4.57 x 1.3 in fits tight spaces

Fosi Audio BL20C 2.1 Channel Amplifier

The Fosi Audio BL20C is a compact Class D stereo receiver amplifier with integrated Bluetooth 5.0 connectivity. It delivers a total power output of 320 watts across 2.1 channels to drive passive speakers and a powered subwoofer. The unit includes a U-Disk player supporting MP3, WMA, APE, FLAC, and WAV formats up to 32 GB capacity. A supplied power supply enables immediate operation.

Ideal for Simple Wireless and Wired Setups

This amplifier suits listeners who want Bluetooth streaming, USB playback, and RCA input in a single small chassis for a 2.1 speaker system. It is not for buyers who need HDMI switching, multi-room streaming, or a dedicated phono preamp for turntables. The touch remote controls volume and input selection but does not offer advanced equalisation or app control. Installers requiring rack-mount dimensions should verify the 4.84 in by 4.57 in footprint.

TDA7498E Chip with 98 dB SNR

The STMicroelectronics TDA7498E dual BTL Class-D chip provides the core amplification with a signal-to-noise ratio of 98 dB and total harmonic distortion of 0.05 %. It operates on a 19 V to 35 V DC supply and includes thermal overload protection plus a low offset below 20 mV. Differential inputs minimise common-mode noise for clean playback. The maximum output configuration is 160 watts per channel plus the subwoofer output.

Highlights

  • Bluetooth 5.0 streams music wirelessly from phones
  • U-Disk plays MP3, WMA, APE, FLAC, WAV files
  • RCA input connects TV, PC or legacy sources
  • TDA7498E chip delivers 320 W total power
  • Compact 4.84 x 4.57 x 1.3 in fits tight spaces

Specifications

BrandFosi Audio
Part NumberBL20C
ColorBlack
Channels2
Remote Controltouch
Power Output320 watts
AudioStereo
Output320 watts
HDMI0
FeaturesVolume Control
Dimensions4.84 in x 4.57 in x 1.3 in
Weight2.29 lb

Questions about this item

What Bluetooth version does the BL20C use, and what is the practical range limit?

The BL20C uses Bluetooth 5.0 for wireless streaming from phones, tablets or computers.

What are the exact dimensions and weight of the BL20C, and what mounting options exist?

The unit measures 4.84 in x 4.57 in x 1.3 in and weighs 2.29 lb; it is designed for desktop or shelf placement with no rack-mount hardware included.

How do I connect speakers and a subwoofer to the BL20C, and which wiring step is most often missed?

Connect passive speakers to the speaker terminals and a powered subwoofer to the subwoofer output; the step most often missed is setting the input-mode switch to match the source (Bluetooth, U-disk or RCA) before expecting sound.

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