Sell ZK-MT21 2.1 channel bluetooth 5.0 subwoofer amplifier board 50wx2+100w power amplifier audio board speaker with antenna best price

Feature： [2-in-1] high quality power amplifier board. With aux and bluetooth two audio input methods, 2-in-1. 5.0 bluetooth version, the transmission efficiency is higher, the transmission distance is farther [High performance] 2.1 channel bluetooth audio amplifier module, maximum output power 2x50w + 100w. With antenna and antenna base, the signal is better, the efficiency is high, and the anti-interference capability is strong. [Protection mechanism] with short circuit protection as well as overcurrent, overheating and anti reverse connection protection to avoid total failure. In case of overload, the device reports the fault condition to the processor to protect itself from damage. [High quality] Adopt copper dc connector and terminal type of fence. It can withstand large current, no heat, no wire damage. [Application] with bass, treble, subwoofer frequency and volume control, easy to adjust the volume, enjoy the music tone you want. Widely used in store order, home theater, square speakers, etc. Model: ZK-MT21 Bluetooth version: 5.0 (15m no occlusion) Audio input: aux + bluetooth Channel: 2.1 Input Sensitivity: 500mV Adaptation supply voltage: 12-24v/5a above (do not connect to 24v battery pack) Speaker: 20-100w, 4-8ohm Output power: max 50w @ r & l channel; max 100w @ subwoofer Protection mechanism: anti reverse connection, overheating, overcurrent, short circuit protection Black color Material: plastic Size: 93x90x22mm Package List: 1 x Amplifier Board 1 x antenna with base Only the contents above the package, other products are not included. Note: light photography and different monitors may cause the item's color in the image to differ slightly from the real thing. Allowable measurement error is +/- 1-3cm.