Amplifier -TPA3116D2 2x50W+100W Channel Digital Power Audio Amplifier Board Module Highlights generic brand TPA3116D2 2x50W+100W Channel Digital Power Audio Amplifier Board Module Description: With DC power connection port and DC 12 wiring terminals -24V (do not use at the same time); 3.5mm audio input jack; 3-pin audio input jack; Volume / subwoofer / stereo adjustment. DC 12-24V DC audio amplifier; Ideal for connecting to phone or computer; DIY enclosure; Auto car; home theater; Music playing in the street/square/mall enhances the sound. Multiple capacitors mounted symmetrically, large capacity, excellent filtering and energy storage function; The reactor has an inhibition for AC; European style wiring terminal. Two TPA3116D2 chips - one for amplified left/right channel power and the second is in bridge connection with the NE5532 front to drive the subwoofer. Digital amplifier chips, up to 90% efficiency, low idle loss and high heat dissipation; 1.6mm circuit board, smooth surface, heat resistant and tide resistant. Specification: Chip Type: TPA3116D2 x 2 Power Supply: DC 12-24V Output Power: 50W*2 100W*1 (Subwoofer) Output Load: 4-8O Response Range: 14-100KHz SNR: 100db Channel Amount: 3 (left + right + subwoofer) Switching frequency: 1.2MHz Weight: 136g Size: 100*85*20mm /3.94*3.35*0.79(L*W*H) Package includes: 1 Piece TPA3116D2 Amplifier