Mini Class D Power Amplifier HiFi Stereo 2.0 Channel Digital Audio Amp 100W+100W Features: 1.To use RCA input audio,you must plug in both left and right channel RCA cables Plug in only one channel,or use Bluetooth-compatible mode RCA input is not available at this time Both cables must be plugged into the RCA cradle to switch to RCA input mode 2.D100A output can only be connected to passive speakers,not active speakers or fixed voltage speakers 3.D100A uses DC12V-24V power supply,it is recommended to use 24V6A But not more than 24V,otherwise it will burn the amplifier 4. The negative poles of the left and right channels of the amplifier output cannot be connected together Otherwise,it will cause the amplifier to burn out Specification: Model:D100A Output Channel:2.0 Function chip:TPA3116*2 Bluetooth-compatible version:5.0 Frequency range:20-20KHz Power Supply:12-24V,6-10A Output Power:100W*2/4Ω,50W*2/8Ω(tested under 24V) Applicable speakers:0W~150W,4Ω,8Ω Transmission distance:10m Protection mechanism:power reverse connection protection,short circuit protection,overheating self-recovery protection Size: 90*110*35mm Weight:300g Package Includes: 1*Main unit 1 Set*Accessories Note: Only include the above packaging products Specifications have been tested manually and are for reference only Please refer to the actual product