McIntosh C46 makes distorting pops thru speakers


Just hooked up McIntosh C46 to a Parasound HCA-2200 Mark II via balanced cables. The C46 makes these very loud distorting popping sounds through the speakers when it is turned on or off. The popping sounds are more prolonged when the C46 is turned off. My normal sequence of turning on the system is power amp, preamp, and source. Turning off the system is just the reverse. However, the popping does not happen when the C46 is turned on before the power amp is turned on. Also the popping does not happen when the C46 is turned off last. Using unbalanced cables do not help.
sfaudiobuff
SF, my C48 only has the standby/on switch, so I don't have the hard switch you mention. However, my former C37 had no problems doing it either way too. Thanks for the info from Chuck.
I have a C46 and I don't think I ever found any reason to use the hard power switch ever in the 5 years I have owned it.
It's vestigial, as far as I can see.
My C46 is staying on for more than 3 years, since the time I bought it. I wish that I could run my Mc402 that way.