Electronics Help Care electronics circuit diagram 2.1 amplifier circuit using LA4630N:
This is a 2.1 amplifier circuit using LA4630N. This diagram for 3 audio inputs and 3 outputs. We can make 2.1 using this diagram. making 2 for the left and right speakers, and another for the Bass. Stereo section 9V/3Ω 3W×3, 12V/3Ω 5W×3. Super bus section 9V/3Ω 6W, 12V/3Ω 10W. We can use 9 volts to 12 volts.
But it has no low-pass filter to make a bass/subwoofer. we have to use a low-pass filter to make a subwoofer.
Low-pass filter for subwoofer amplifier:
This is the low-pass filter for the subwoofer amplifier. This circuit needs to make a bass amplifier. We also need to make a 2.1,5.1 audio sound system. This board makes only bass. makes only the low part. It has no mid-range or high part. It’s also a pre-amplifier. It’s output mono. Input stereo but output mono. This board runs on 9 volts to 15 volts. It needs a single voltage. For this, we can use this board in a car amplifier.
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