Help rotel pops when turning on and off


Why!! what can I do? just got it used, when on it sounds great, its not a loud pop but I can see the woofers moving, is it going to hurt my speakers I know it cant be good! Its an older rotel, probably been sitting awile but super clean. its an RA-930AX
glowplug
Don't know about your Rotel model but if it has a speaker on/off switch make sure it's off before turning your amp on or off. If it doesn't you can plug a dummy load into the headphone jack which might mute the circuit. Good luck.
I have an old Sansui receiver that does the same thing. I put a larger wattage resistor across the "B" speaker leads, then before I turned it off, I just switched to the "B" speakers. When I power it up, it's on the "B" speakers, the load is absorbed by the resistors, then I switch to the "A" speakers, where my speakers are hooked up. Never a pop!
Is it critical to provide the amp a load on speaker b, or can I just switch it to b no worries?