2. amps-preamps
  3. 1279667960

HK Citation 7.1 & 5.1 "pop" when turning on or off

I just upgraded my receiver (which I use the preouts) to the new Onkyo TX-NR5007. I know, a lot of you guys feel it's a sacrilege to use a receiver as a pre-amp...but it's a good value and has a lot of inputs I feel.

So, I have the pre-outs feeding a bridged Citation 5.1 for my two center channels (Infinity Kappas), another feeding a Citation 7.1 which I use to to biamp the L/R Kappa towers and another Citation 7.1 feeding the SR/SB channels.

Recently the wife has noticed a high pitched pop when starting up, turning off, and sometimes when switching sources or THX/DTS modes.

I'm wondering if it's the old solid state amps charging up down and that's the joy of older tech. If I've got a ground loop problem. Or if there's some solution.
agdthree

Showing 1 response by wings

wings
29 posts
 
I would start by cleaning all your RCA plug connections.
Does the pop happen on all speakers? If so, start at the receiver or preamp. You might also try swapping IC's out too, just remember to power down first.

I have a Citation 7.1 and there are relays to control power up/down, so very unlikely it's the problem.
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