Slow start audio amplifier

Thread Starter


Joined Feb 9, 2020
Hi, I have an electronic crossover where the output circuits drive transformers, which are connected to power amps. Even so, there is a strong pop in speakers when switching the thing on/off. I probably need some safety feature which shortens the outputs if power to the crossover accidentally is switched off. I apologise for the poor image - but you should be able to see what is going on - maybe a switching JFET short to earth from either between the diodes or between the emitter resistors (they are 15 ohm) - Ideas? Cheers