Snap-Crackle-Pop in Studio Monitors

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ssseals

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I just bought a pair of Tannoy Reveal Monitors and they sound great. This is my first pair of studio monitors and I'm pleased, BUT... When I turn my power amp off, I get a "snap-crackle-pop" in the speakers, then it fades out pretty quickly. The higher the volume on the power amp, the louder the noise, but it still happens when the volume is all the way down. It's a "biamp" power amp at 60 watts per channel, but I don't have to turn it past "2" on the volume knobs. I just wanted to know if anyone else has experienced this, if it's normal, or if I'm doing something wrong. Thanks.
 
You again!!?? :) Wazzzzzzup sssssssseaaaaals!!!!!
Prior to turning off your monitors,be sure all volume levels on the amp, the mixer and any other gear with vol controls are turned down. If that doesnt work,they're MIGHT be something wrong with your speakers and it might be advisable to call the store where you purchased them from.
Good Luck!
 
I messed around with them some more & it seems to be one channel on the power amp. I switched cables on the speakers, then on each channel and it seems to be channel one. The outputs on the power amp are "bannana clips" and the "positive" side doesn't go in as far as the "negative", but they both seem to be making contact. Could that be a problem? Is this something that could possibly HARM the speakers, or just an annoyance? Otherwise they are quiet and sound great. Thanks for the quick reply. If I need to get another power amp, what do you recommend. Should I try and match it exactly w/ the monitors?
 
Well, sounds similar to what happened to me. I bought a used Hafler P3000 amp. I had it hooked up to some Peavey PA speakers (good thing I didn't hook up my monitors first) and when I turned it on I heard a similar crackling noise out of one speaker. Then the speaker smelled burnt and no longer worked. I did some troubleshooting with the other speaker and found that it only happenned on one channel and only at a certain volume setting on the amp. If I cranked it all the way it was fine, but as I turned it down it started to crackle and pop at about half power even with no input level. I don't know if it faded away because I turned the amp off right away so I didn't blow both speakers. I sent the amp back and still haven't heard what the problem was yet. Anyway, you probably should get the amp checked out before you risk permanent damage to your new speakers. What kind of amp is it anyway?
 
It's probably an output relay in your amp that has gone bad. The relays connect the output transistors to the speakers a little bit after you switch on the power to avoid the voltage spikes which occur at that time. Likewise they disconnect the speakers a little bit before the power goes off for the same reason. Eventually you might find the crackling starts to happen all of the time.
 
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