Subwoofer Driver Circuit for Stereo Car Audio System

Here the schematic diagram of subwoofer driver for stereo car audio system. You may use this circuit for your home audio system.

Components Part:

R1,R4 = 1K R2,R3,R5,R6 = 10K R7,R8 = 100K R9,R10,R13 = 47K R11,R12 = 15K R14,R15,R17 = 47K R16 = 6K8 R18 = 1K5 P1 = 10K Log Pot P2 = 22K Dual gang Linear Pot D1 = LED Q1,Q2 = BC547 Circuit Notes: The circuit connected to the output of existing amplifier. Take note that this circuit is not an amplifier, it just similar to crossover circuit. Use heatsink to IC2 to keep the IC from overheating.

C1,C2,C3,C6 = 4µ7/25V C4,C5 = 68nF C7 = 33nF C8,C9 = 220µF/25V C10 = 470nF C11 = 100nF C12 = 2200µF/25V IC1 = TL072 IC2 = TDA1516BQ SW1 = DPDT Switch SW2 = SPST Switch (current handling min 3A) SPKR = 4 Ohm Woofer or paralled two 8 Ohm Woofers