AK-55 Bluetooth 5.0 HiFi Amplifier — TPA3116D2 2.0 Channel 70W×2 (Peak 600W) with Treble/Bass, FM, Dual MIC (Echo/Delay), USB/AUX/OPT/RCA Inputs

Compact, feature-rich home amplifier: the AK-55 combines multiple functions in a single unit — 2.0 Channel 70W + 70W rated power with peak power output up to 600W. It can drive an active subwoofer and high-power speakers, delivering stable, low-latency performance suitable for extended listening sessions. Tone control is provided via Treble and Bass adjustments for clearer highs and punchier lows. Connectivity and media playback: built-in Bluetooth 5.0 offers faster transmission, lossless decoding and reduced distortion with a wireless range up to 10m/32ft. The unit also supports USB flash disk playback and USB sound card input, 3.5mm AUX, RCA, OPT/COA optical/coaxial, and FM radio. Note: If using AUX/USB/RCA/OPT/COA inputs, please ensure the Bluetooth connection on the module is disconnected. Microphone and vocal effects: two MIC jacks allow two microphones to be used simultaneously for karaoke, parties or street performances. Echo and Delay functions expand vocal output styles for more engaging performances. HiFi performance: the AK-55 uses two TPA3116D2 Class D amplifier chips to maintain ultra-low distortion across the audio band, with a distortion rate less than 0.5%. The result is high-definition stereo sound with good dynamic range and detail. FM and compatibility: FM mode can store more than 20 stations. Compatible with MP3 players, mobile phones, tablets, laptops and TVs. Recommended applications include home stereo systems, computer gaming audio, bookshelf or tower speakers, garden speakers and other indoor/outdoor setups such as patios, pools, commercial spaces, classrooms and conference rooms.