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popularRed_Liz | Staff posted May 27, 2026 08:39 PM
popularRed_Liz | Staff posted May 27, 2026 08:39 PM

Fosi Audio BT20A MAX Bluetooth Stereo Power Amp $195.50 + Free Shipping

$196

$230

14% off
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Fosi Audio [fosiaudio.com] has the Fosi Audio BT20A MAX Bluetooth Stereo Power Amp (32V 5A) for $229.99 - 15% fff w/ code FFS15 at checkout = $195.50. Shipping is free.

Description:
  • Purity Sound: Featuring PFFB technology and dual independent power supply, this stereo amplifier delivers ultra-low distortion (≤0.003%) and high SNR (≥112dB). It can reduce noise interference, resulting in a clean, detailed audio performance.
  • Enhanced Cooling System: Powered by the TPA3255 & NE5532 chips, the BT20A MAX delivers 300W per channel. Its enhanced design includes a built-in silent fan, improving cooling efficiency by 30% over the PRO version for stable, high-power performance.
  • Hi-Res Bluetooth Connectivity: Equipped with Qualcomm Chip QCC3095, Bluetooth 6.0 with support for LDAC/aptX Lossless/aptX HD/aptX Adaptive/aptX/SBC/AAC codecs, max sampling rate PCM 24bit/96kHz. Delivering a stable, low-latency connection.
  • Versatile Connectivity: Featuring dual RCA inputs, dedicated subwoofer output, and the motorized analog potentiometer allows precise adjustments via the included remote control, perfect for building a 2.1 amplifier home audio system.
  • All-in-One Audio Control: Enjoy pure sound with Bypass mode, while customizable bass & treble controls in Tone mode. The 12V Trigger input enable synchronized power on/off, and the HPF adjustment for speaker performance.
Specs:
  • Channel: 2.1
  • Chipset: TI TPA3255, NE5532
  • Max Output Power: 300W × 2 @ 4Ω
  • RMS Output Power: 180W × 2 @ 4Ω
  • Input: RCA1 / RCA2 / Bluetooth
  • Output: Speaker Out / Sub Out
  • SNR: ≥ 112 dB
  • THD+N: ≤ 0.003%
  • Terminal Impedance: 2–8Ω
  • Bluetooth SoC: Qualcomm QCC3095
  • Bluetooth Device Name: Fosi Audio BT20A MAX
  • Bluetooth Version: 6.0
  • Bluetooth Connection Range: ≤ 15 m (50 ft)
  • Bluetooth Audio Codecs: SBC / AAC / aptX / aptX HD / aptX Adaptive / aptX Lossless / LDAC
  • Frequency Response: 20 Hz–20 kHz (±0.5 dB)
  • Voltage Range: DC 32 V–48 V
Community Notes
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Deal Details
Community Notes
About the Poster
Fosi Audio [fosiaudio.com] has the Fosi Audio BT20A MAX Bluetooth Stereo Power Amp (32V 5A) for $229.99 - 15% fff w/ code FFS15 at checkout = $195.50. Shipping is free.

Description:
  • Purity Sound: Featuring PFFB technology and dual independent power supply, this stereo amplifier delivers ultra-low distortion (≤0.003%) and high SNR (≥112dB). It can reduce noise interference, resulting in a clean, detailed audio performance.
  • Enhanced Cooling System: Powered by the TPA3255 & NE5532 chips, the BT20A MAX delivers 300W per channel. Its enhanced design includes a built-in silent fan, improving cooling efficiency by 30% over the PRO version for stable, high-power performance.
  • Hi-Res Bluetooth Connectivity: Equipped with Qualcomm Chip QCC3095, Bluetooth 6.0 with support for LDAC/aptX Lossless/aptX HD/aptX Adaptive/aptX/SBC/AAC codecs, max sampling rate PCM 24bit/96kHz. Delivering a stable, low-latency connection.
  • Versatile Connectivity: Featuring dual RCA inputs, dedicated subwoofer output, and the motorized analog potentiometer allows precise adjustments via the included remote control, perfect for building a 2.1 amplifier home audio system.
  • All-in-One Audio Control: Enjoy pure sound with Bypass mode, while customizable bass & treble controls in Tone mode. The 12V Trigger input enable synchronized power on/off, and the HPF adjustment for speaker performance.
Specs:
  • Channel: 2.1
  • Chipset: TI TPA3255, NE5532
  • Max Output Power: 300W × 2 @ 4Ω
  • RMS Output Power: 180W × 2 @ 4Ω
  • Input: RCA1 / RCA2 / Bluetooth
  • Output: Speaker Out / Sub Out
  • SNR: ≥ 112 dB
  • THD+N: ≤ 0.003%
  • Terminal Impedance: 2–8Ω
  • Bluetooth SoC: Qualcomm QCC3095
  • Bluetooth Device Name: Fosi Audio BT20A MAX
  • Bluetooth Version: 6.0
  • Bluetooth Connection Range: ≤ 15 m (50 ft)
  • Bluetooth Audio Codecs: SBC / AAC / aptX / aptX HD / aptX Adaptive / aptX Lossless / LDAC
  • Frequency Response: 20 Hz–20 kHz (±0.5 dB)
  • Voltage Range: DC 32 V–48 V

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May 28, 2026 01:32 AM
2,652 Posts
Joined Jan 2004
holysinMay 28, 2026 01:32 AM
2,652 Posts

Our community has rated this post as helpful. If you agree, why not thank holysin

If you don't need quite so much power (or are only feeding speakers and not a sub) the non-max version is currently $72 on Amazon after coupon ( https://a.co/d/00TiUnDK I paid $48 for this one back in may of 24 to feed my outside NS-AW350W Yamaha speakers from the $75 best buy deal around the same time and it works a treat, it comes on sub $50 sale about every 6 to 9 months but even at 72 it's not awful if it fits your needs as it's been running in a plastic box for more than 2 years with nearly daily use and no problems)
Last edited by holysin May 27, 2026 at 07:33 PM.
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Jun 01, 2026 11:50 PM
929 Posts
Joined Aug 2008
TrollPatrolJun 01, 2026 11:50 PM
929 Posts
Good units but I hope the price will come down after the AI chip demand slows.

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