What is the proper turn on/off sequence of source, pre-amp and power amp? One time I got a pop sound from the speaker when I turn on the source first, then power amp and finally pre-amp.
Always turn the preamp on first. Some tube preamps take a while to stabilize. If you own a tube preamp and your preamp does not auto mute turn the preamp on and wait a few minutes before turning the power amp on.
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