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f12_26 | Staff 4.2K Views
Aug 21, 2026 7:04 PM

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

$196

$230

14% off
Fosi Audio
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Deal Details
Fosi Audio [fosiaudio.com] has the Fosi Audio BT20A MAX Bluetooth Stereo Power Amp (32V 5A) for $229.99 - 15% fff w/ code STB15 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
About the Poster
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 STB15 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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8 Comments

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Aug 21, 2026 7:39 PM
2K Comments
Joined Nov 2011
capitol9000Aug 21, 2026 7:39 PM
2K Comments
What... i paid $60 for this 2 years ago on amzn
5
Aug 21, 2026 7:56 PM
494 Comments
Joined Dec 2018
dox83Aug 21, 2026 7:56 PM
494 Comments
Quote from capitol9000 View quoted comment :
What... i paid $60 for this 2 years ago on amzn
That is crazy. You purchased it like a year and a half before Fosi even announced and released it in January 2026.
1
5
1
Aug 21, 2026 8:47 PM
1.2K Comments
Joined Oct 2006
raizAug 21, 2026 8:47 PM
1.2K Comments
Quote from dox83 View quoted comment :
That is crazy. You purchased it like a year and a half before Fosi even announced and released it in January 2026.
Yes, he didn't get this new version of the BT20 amp. So the question is, is this $200 amp over 3x better than the BT20 he bought for $60? I watched the cheapaudioman review of it, and I'm still not sure.
1
Aug 21, 2026 9:18 PM
889 Comments
Joined Mar 2008
jefflinsAug 21, 2026 9:18 PM
889 Comments
The specs are great and I love my little fosis. But 300w a channel for a 2.1 setup...sounds like a limited market. Too much for bookshelf speakers in the office, and not fancy enough for audiophiles who wouldnt dare listen to audio in anything other than 2.0, the way God meant music to be heard, etc...
1
Pro
Aug 22, 2026 10:09 AM
7.9K Comments
Joined Sep 2014
CTRL-ALT-DEALS
Pro
Aug 22, 2026 10:09 AM
7.9K Comments
Quote from jefflins View quoted comment :
The specs are great and I love my little fosis. But 300w a channel for a 2.1 setup...sounds like a limited market. Too much for bookshelf speakers in the office, and not fancy enough for audiophiles who wouldnt dare listen to audio in anything other than 2.0, the way God meant music to be heard, etc...
Well you're in luck because this one is 300W 2.0 and only $99

Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier, 300W x2 Wireless Amp
TPA3255

https://a.co/d/0hUS4j15
Aug 22, 2026 7:43 PM
1.3K Comments
Joined Apr 2008
sr27Aug 22, 2026 7:43 PM
1.3K Comments
Quote from raiz View quoted comment :
Yes, he didn't get this new version of the BT20 amp. So the question is, is this $200 amp over 3x better than the BT20 he bought for $60? I watched the cheapaudioman review of it, and I'm still not sure.
Asking the touchy questions. I don't know in what world this is a deal, much less a slickdeal
Original Poster
Pro
Staff
Aug 24, 2026 6:36 PM
41.3K Comments
Joined Apr 2014
f12_26Aug 24, 2026 6:36 PM
Original Poster
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Staff
41.3K Comments

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Aug 27, 2026 2:19 PM
228 Comments
Joined Nov 2007
serniterAug 27, 2026 2:19 PM
228 Comments
This does have a high pass filter for sub out.

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