Electronics Help Care electronics circuit diagram 2.1 amplifier circuit subwoofer:
This is the 2.1 amplifier circuit subwoofer. This circuit is for the TDA8580 and TDA8581 ICs. We can use 8 volts to a maximum of 24 volts. The best voltage is 12 to 16 volts. This diagram can make 20watts+40watts+20watts. It’s 2.1 output. 3 input and 3 output. 2 input for surround and another input for the subwoofer.
But this diagram doesn’t have a low-pass filter for the subwoofer. It needs a low-pass filter to make only bass. The low-pass filter circuit diagram is here
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 the car amplifier.
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