Fosi Audio BT20A MAX Bluetooth Stereo Power Amp

BT20A MAX 是 Fosi Audio 首款配備 PFFB 技術的立體聲功放 

該技術能有效降低負載依賴性，減少不同音箱阻抗對輸出的影響，確保頻響曲線平直，並具備更低失真 (≤0.003%) 與更高信噪比 (≥112 dB)，真實還原音樂本真。

經聲學工程師精心調校，聲音三頻均衡自然，展現出色的解析力與動態表現。無論是人聲還是樂器，都能呈現細膩而豐富的細節

Dual Independent Power Supply

BT20A MAX adopts a dual-rail power architecture with separate supplies for the digital and analog sections. 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.

Impressive Chip Performance

Powered by Texas Instruments TPA3255 amp chip with NE5532 op-amps and finely tuned by our professional acoustic team, the BT20A MAX delivers detailed and natural sound. Its tonal, musical bass and clean separation offer a living, emotional journey.

Compact Size, Giant Sound

With peak power reaching 300W per channel, the BT20A MAX delivers excellent control and can effortlessly drive mainstream speakers. It not only faithfully produces the subtle emotions of vocals but also creates a wide, immersive soundstage with ease.

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 BT20A MAX further refines its circuit design and features a built-in silent fan, improving overall cooling efficiency by 30%.

Hi-Res Bluetooth Codecs

3 Audio Inputs, 2 Outputs

BT20A MAX features two sets of RCA inputs and Bluetooth connectivity, allowing you to switch instantly between digital and analog sources with a dedicated button.

Dedicated Subwoofer Output Easily Build Your 2.1 System

It offers two high-pass filters: 20Hz–20kHz and 80Hz–20kHz. These filters can remove low-frequency signals according to listening needs, improving sound purity and optimizing the vocal and detail performance of the main speakers.

All-Scenario Listening

With lossless Bluetooth transmission and versatile connectivity, the BT20A MAX adapts seamlessly to both indoor and outdoor setups. Whether for home entertainment or professional HiFi, it is a perfect choice both as a starter amp and as a secondary system.

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