The how to make powerful Bass bridge mode amplifier, use PAM8403 3W stereo Class D audio power amplifier board.
In addition, the circuit also uses C1815 transistor as the input signal phase reversal circuit for the amplifier PAM8403 circuit.
➤ How to Make PAM8403 3W Stereo Class-D into 15W Bridge Mode Bass Amplifier
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➤ Parts Required:
PAM8403A board
Transistor:
C1815 or equivalent
Capacitor:
3 x 4.7uF/50v
47uF/50v
Resistor:
1K
330K
2K2 x 2