Enjoy a neutral and detailed sound that makes your music feel more vivid with the Fosi Audio BT20A MAX 2.1-Channel Power Amplifier. Packing some power for its compact size, the BT20A MAX can output up to 300W peak and 180W RMS at 4 Ohms, driven by two channels. It features PFFB (Post Filter Feedback) technology, separate digital and analog power supplies, and an enhanced cooling design for silent, efficient operation with minimal distortion.
Hi-Res Bluetooth
BT20A MAX features a Qualcomm QCC3095 chipset with Bluetooth 6.0. Supporting a range of high-quality codecs, including aptX, aptX HD, aptX Adaptive, aptX Lossless, and LDAC, it ensures a stable, low-latency, and up to 24-bit/96 kHz high-resolution listening experience.
PFFB Technology
This technology minimizes distortion (≤0.003% THD+N) and boosts the SNR (≥ 112dB), while also enhancing linearity and frequency response to deliver greater sound purity and improve overall system efficiency.
Dual Independent Power Supply
BT20A MAX adopts a dual-rail power architecture with separate supplies for digital and analog circuits. Paired with Japanese Elna capacitors, it effectively reduces noise interference, delivering cleaner power and a purer sound background. This design further enhances the performance of the PFFB technology, ensuring stable and high-fidelity audio output.
Enhanced Cooling Design
Cooling vents are specially designed on the top and sides of the chassis to ensure proper airflow. Building on the PRO version, the BTA20A MAX further refines its circuit design and features a built-in silent fan, improving overall cooling efficiency by 30%.
Additional Details
- Powered by Texas Instruments TPA3255 amp chip with NE5532 op-amps
- Audio decoding with flagship CS4398 DAC
- Dual stereo RCA inputs and mono RCA subwoofer output
- 12V trigger input
- All-aluminum alloy chassis