Fosi Audio - BT20A MAX Bluetooth Stereo Power Amplifier (2 x 300W at 4 Ohms) - Black

Name: Fosi Audio - BT20A MAX Bluetooth Stereo Power Amplifier (2 x 300W at 4 Ohms) - Black
Brand: Fosi Audio
SKU: 6680581
Price: 249.99 USD
Availability: InStock
Rating: 5 (3 reviews)

Model: BT20A MAX-48V

SKU: 6680581

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About this product

The BT20A MAX is a compact 2.1-channel Bluetooth stereo amplifier designed for desktop and home audio systems. Powered by the TI TPA3255 Class-D amplifier chip with PFFB technology, it delivers up to 300W × 2 peak power and 180W × 2 RMS output at 4 ohms for clean, dynamic sound performance. It features Bluetooth 6.0 with support for LDAC, aptX HD, aptX Adaptive, and aptX Lossless for high-resolution wireless audio streaming. Dual RCA inputs, passive speaker outputs, and an active subwoofer output with selectable high-pass filter provide flexible connectivity for 2.1 speaker setups. The BT20A MAX also includes bass and treble controls, a remote control, and an upgraded cooling system for stable high-power operation in a compact aluminum chassis.

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Fosi Audio - BT20A MAX Bluetooth Stereo Power Amplifier (2 x 300W at 4 Ohms) - Black

Model: BT20A MAX-48V

SKU: 6680581

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Features

High-Fidelity Sound
Featuring advanced PFFB technology and dual independent power supplies, the BT20A MAX delivers ultra-low distortion (≤0.003%) and a high SNR of ≥112dB for clean, detailed audio reproduction. Powered by the TI TPA3255 amplifier chip and professionally tuned for balanced, natural sound, it brings powerful performance to desktop and home audio systems.
Hi-Res Bluetooth & Flexible 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.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.
Customizable Audio Control
Fine-tune your listening experience with adjustable bass and treble controls, plus an EQ bypass mode that preserves the original audio signal. The built-in 12V trigger enables seamless power synchronization with compatible devices, while the selectable high-pass filter improves vocal clarity and overall speaker performance in 2.1-channel systems.

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Specifications

Continuous Watts x Channel @ Ohms
180W x 2 @ 4 Ohms
Number of Channels
2
Audio Only Inputs
Unbalanced RCA, Unbalanced RCA
Network Connector(s)
No network connectors

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Reviews

100% would recommend to a friend

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The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Rated 5 out of 5 stars
Excellent!
I purchased the BT20A MAX to power a pair of bookshelf speakers, and it has exceeded my expectations in every way. The sound is clean, dynamic, and surprisingly refined for such a compact amplifier. Vocals are clear, the bass has excellent control, and there's plenty of detail without sounding harsh. Even at higher volume levels, the amplifier remains composed and distortion-free. Another thing I really appreciate is the amount of power it delivers. It drives my speakers effortlessly while taking up very little desk space, making it perfect for a desktop or small living room setup. Setup was quick and straightforward, and everything worked exactly as expected right out of the box. The overall build quality also feels solid and well engineered.
Posted 2 weeks ago by Shivaly
Rated 5 out of 5 stars
Big Sound from a Small Amplifier
Fosi Audio BT20A MAX Stereo Power Amplifier I have been an audio enthusiast since the 1970s, and after years of upgrading my equipment, I had a few unused speakers and streamers in storage waiting for a new purpose. Recently, I came across the Fosi Audio BT20A MAX and decided to build a compact system for my home office. I paired it with a WiiM Pro streamer and a pair of JBL speakers. The setup was simple, and everything worked together without any issues. Although compact, the BT20A MAX comes with a substantial 48V power supply and has more than enough power for my setup. What impressed me most was the sound quality. The presentation is clean and clear, with excellent instrument separation, a well-defined soundstage, and impressive depth. The amplifier is also remarkably quiet, with a very low noise floor that allows subtle details in the music to come through clearly. Instruments and vocals have excellent clarity and definition, giving the music an open, effortless presentation that I didn’t expect from an amplifier of this size and price. Two RCA inputs, a dedicated subwoofer output for a 2.1 system, and Bluetooth add useful flexibility. Overall, the BT20A MAX has been a great addition to my home office system and offers excellent performance and value for its size and price.
Posted 1 month ago by OOZero
Rated 5 out of 5 stars
Packs a punch
Bought this to power a pair of desktop bookshelf speakers and a subwoofer, and it has exceeded my expectations. For a compact Class-D amp, it puts out plenty of clean headroom with a virtually silent background floor, no noticeable hiss even when turned up. The Bluetooth 6.0 connection with LDAC is rock solid, and having dual RCA inputs, a remote, and a 12V trigger makes integration super easy. The EQ bypass button is a nice touch if you just want a clean, uncolored signal path. It runs cool, takes up almost no space on the desk, and drives demanding speakers effortlessly. Solid value if you want big sound without a bulky traditional receiver.
Posted 1 day ago by Pran

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Specs

Questions & Answers

Does this stereo amplifier support high-resolution wireless audio streaming?
Yes, this stereo amplifier features Bluetooth 6.0 with support for LDAC, aptX HD, aptX Adaptive, and aptX Lossless for high-resolution wireless audio streaming.
This question and answer was generated by AI based on customer and product data.
Can I adjust the bass and treble on this stereo amplifier?
Yes, you can fine-tune your listening experience with the adjustable bass and treble controls included on the device.
This question and answer was generated by AI based on customer and product data.
What type of speaker connections does this stereo amplifier use?
This stereo amplifier uses banana jack or screw terminals for speaker connections.
This question and answer was generated by AI based on customer and product data.
Is there a remote control included with this stereo amplifier?
Yes, this stereo amplifier comes with a remote control that allows for precise adjustments of the motorized analog potentiometer.
This question and answer was generated by AI based on customer and product data.
What is the warranty period for parts and labor for this stereo amplifier?
The manufacturer provides a 2-year warranty for both parts and labor.
This question and answer was generated by AI based on customer and product data.