ZK-TB21 2.1 Channel Power Amplifier
2.1 stereo output (left channel, right channel, and a dedicated subwoofer output
Maximum 50W per channel (R&L) and maximum 100W for the subwoofer
total of up to 200W peak output.
TPA3116D2 Class D amplifier chips
Supports both Bluetooth 5.0 and a 3.5mm AUX input.
DC input voltage range of 12V to 24V
impedance of 4 to 8Ω and a power rating between 20W and 100W.
Controls main volume, left and right channel treble and bass, and subwoofer volume and cutoff frequency (20Hz-200Hz range).
built-in safeguards such as over-voltage, under-voltage, over-heat, and short-circuit protection for safe operation.
DIY assembly kit