ZK-HT22 is a high-power 2.1 channel Bluetooth digital amplifier board based on TDA7498E chip. It outputs 160W ×2 left & right channels plus 220W independent subwoofer channel. The potentiometers are connected via shielded cables for flexible installation inside speaker cabinets. Equipped with independent treble, bass and volume adjustment knobs, built-in Bluetooth audio receiver, supports multiple audio input methods. Perfect for DIY HIFI speaker, active subwoofer and home audio system construction.

✅ 2.1 Channel High Power Output 160W Left Channel + 160W Right Channel + 220W Subwoofer, powerful dynamic sound performance. ✅ Separated Adjustable Potentiometers with Shielded Wire Volume / Bass / Treble knobs connected by extended shielded cable, convenient for cabinet panel installation, effectively reduce audio noise interference. ✅ Independent Treble & Bass Tuning Dedicated knobs for volume, low frequency and high frequency adjustment, freely tune sound effect according to your preference. ✅ Bluetooth Audio Receiver Built-in Support wireless Bluetooth audio connection; also reserved wired audio input interface. ✅ Active Cooling Fan Design Onboard cooling radiator with automatic fan, stable continuous operation under high load. ✅ TDA7498E Digital Amplifier Chip Low distortion, high efficiency, clear sound output, great for HIFI audio projects. ✅ Capacitor Filter Circuit High-quality electrolytic capacitors filter power supply noise, purify audio signal.