Fosi Audio

Fosi Audio BT30D Pro Bluetooth 5.0 2.1 Channel Power Amplifier


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Unleash the power of sound

Engineered with audiophiles in mind, the Fosi Audio BT30D Pro Bluetooth stereo amplifier is powered by dual Texas Instrument TPA3116D2 amp chips, delivering a robust dual-channel max output of 50W x 2 + 100W of power. It's all about clear, undisturbed audio that keeps noise quiet and your tunes roaring.

A masterclass in clarity

Say goodbye to pops, audible noise, and interruptions. With this amplifier, the focus is solely on delivering dead-silent operation when idle and unparalleled clarity when in use.

Boundless connectivity

Experience wireless playback like never before, thanks to Bluetooth 5.0 technology and an external antenna that extends your streaming range up to 49ft without obstacles. Your music, your way—anytime, anywhere.

Designed to last

Encased in a full metallic shell with advanced circuitry design and built-in speakers protection circuit, this amplifier ensures Hi-Fi sound that’s as durable as it is clear.

Safety first

Enjoy peace of mind with a safe, spark-free DC power outlet and a high-quality 24V/4.5A power supply. It’s designed to power most passive speakers and subwoofers, ensuring your setup is as safe as it is powerful.

Product highlights

  • Dual Texas Instrument TPA3116D2 amp chips for clear sound
  • Dual-channel max output of 50W x 2 + 100W
  • Customizable treble and bass with adjustable cutoff frequency
  • Bluetooth 5.0 with over 49ft wireless range
  • Full metallic shell for durability
  • Advanced circuitry with built-in speakers protection
  • Upgraded DC power outlet for safe use


  • Chipset: TPA3116D2
  • Max power output: 50W x2 +100W
  • THD: 0.05% @1W 
  • SNR: ≥98dB
  • Working voltage: 12-24V
  • Speakers frequency response: 20Hz - 20kHz (±3dB)
  • Bass cutoff frequency range adjustment: 20-200Hz
  • Impedance: 2-8Ω
  • Device dimensions: 4.72” x 5.2” x 1.38”
  • Input mode: Bluetooth/ RCA
  • Output mode: Passive speakers + Passive/active subwoofer
  • Bluetooth: 5.0
  • Range: Up to 49ft wireless range without hindrance

What’s included

  • Fosi Audio BT30D Pro Amplifier x1
  • 24V/ 4.5A Power supply x1
  • User’s manual x1

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