Brifit Zk-tb21 Bộ Khuếch Đại Kênh 2.1 Mô-đun Khuếch Đại Công Suất Kỹ Thuật Số Bluetooth 5.0 Bảng Mạch Khuếch Đại Loa Âm Thanh Bluetooth Mini

Specifications：

Product model: ZK-TB21

Bluetooth version: 5.0 (unobstructed, 10 meters)

Input sensitivity: 500mV

Input method: AUX+Bluetooth

Number of channels: 2.1 channels

Maximum output power: 50W*2 (R&L) +100W (subwoofer)

Power amplifier chip: TPA3116D2 (with AM interference suppression function)

Adapter power supply: DC 12-24V/ 5A or more (the higher the voltage, the greater the output power)

Matching speakers: 50-300 watts

Termination impedance: 4-8 ohms

Output power: left and right channels ≤50w subwoofer ≤00W

Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection

Package includes:

1*ZK-TB21 power amplifier board

1*set of protective shell

1*Power adapter

1*a pack of screw accessories

1*screwdriver

5*knob cap