There are a few topics on this across the net but I wonder if anyone has any recent advice to stop an old amp from popping when turning on. I believe the speakers pop because there is a residual amount of current left in the amp and it has no muting circuitry like modern amps. So without wanting to buy a new amp, any suggestions? If I leave it on permanently will this cost shed loads? The amp feeds through another processor amp but the muting circuitry doesn't seem to stop the Rotel passing through it??