Rather loud popping sounds - bit of a concern!

[admin_exported]

Hello all, perhaps one of you can help me here! Ever since I've owned my Denon AVC A10SE I've heard popping sounds when turning on the DVD player, or hitting play/pause or any number of other functions, especially switching from DD/DTS to 5/7 Channel Stereo on the amp. All the speakers go "POP" quite loudly. Since adding a new Power amp and going up to 7.1 surround it seems to have gotten louder. Is this normal with AV Amps? Is something in the Denon in need of servicing? Maybe a capacitor or something. Or is it nothing to worry about at all. I just don't want to harm my lovely speakers and I'd rather take care of my gear by having it serviced if that's what it needs. Looking forward to hearing what everyone thinks

 

[Anonymous]

Its interference from something. I had the same thing happen on my system with my beer fridge when the compressor started and even louder when it stopped. And my receivers volume potentiometer is motorised, so, there is a quiet hissing coming from the speakers when I turn the volume up and down when not playing a source.

 

[Anonymous]

Except that it is a sound that occures when I do something. It doesn't happen arbitrarilly. It's mostly when changing a sound configuration on the amp, or (ah yes, now I remember) playing a DVD from the main menu. As it switches to DD 5.1 output the amp "pops". Anyone have any ideas?

 

[Andrew Everard]

Sounds like muting relays, which are there to avoid any nasty noise while the receiver locks onto the digital signal and engages the correct decoding mode. They've just got louder because you now have more amp gain.

Move along, please - nothing more to worry about here...

 

[Anonymous]

Oh good! So they don't need to be replaced or anything and I suppose that would explain it very well! Shouldn't they work in tandem with some sort of electronic damping mechanism? Same pop usually happens when the DVD changes layer. Will my upgrade, (one-day to occur) solve the layer issue at least, through buffering up to 10 seconds and not making the changeover apparent to the viewer?

 

[Andrew Everard]

No it's all fine. Just a digital unlock/lock thing. Nit sure whether the upgrade will help, however...