opamp based vu-meter amp?
Jan 8, 2006 at 3:09 PM Post #2 of 4
You tap the signal going into your amp and build a small cmoy style amplifier with a variable gain control. So the signal splits into 2 separate amps. THe main amp, and the VU metre amp. Then listen to music and adjust the level to taste.
 
Jan 9, 2006 at 12:06 AM Post #4 of 4
Don't forget the precision rectifier part of the opamp circuit AND to have a high enough impedance going to the meter so it does load down the output and suck actual power from the audio signal .
Everything connected to the amp output has an effect and the trick is to minimize the bad and reinforce the good.
 

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