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Weird Speaker Problem

post #1 of 11
Thread Starter 
Not sure if this is the right place to post, but I've been having an odd problem with my speakers. I have 2 KEF Q100 speakers, and a polk subwoofer, powered by an older Onkyo receiver (HT-R530).

Whenever I power on the system, I get no sound from my KEFs for about a minute or so, while the subwoofer is working fine. After about a minute, I'll get some crackle and hiss from the speakers for a few seconds and then they pop in and start playing fine. They'll work perfect now for as long as the receiver is on, but if I turn it off, and turn it back on after maybe 10-12 hours, it will go through the same pattern.

Does anyone know what might be going on? I've installed with new speaker wires, did not have this problem if I use a different receiver with the KEFs, or if I use different speakers with the Onkyo receiver...
post #2 of 11
Assuming you have an active (powered) sub, it sounds like the amp section of your receiver is having issues.
post #3 of 11
+1
post #4 of 11
He stated that if he uses a different set of speakers with the same receiver, he gets no issue as well as the KEFs with a different receiver.
post #5 of 11
Speakers just don't act like that. They either work, or they don't. The problem is his amp section of the receiver.
post #6 of 11
Quote:
Originally Posted by flyng_fool View Post

Speakers just don't act like that. They either work, or they don't. The problem is his amp section of the receiver.

Speakers do fault sometimes, if the leads running into the voice coils are going bad or the crossover is dying. It would be odd for the crossover to fail that quick though.
post #7 of 11
I've had amps fail and they fail exactly how he is describing. Speakers are very simple. A bad crossover will produce strange sounds from his speakers, not taking a while to start producing sound. Voice coils are just wire. Either the circuit is open or it is closed, there is no In between. It's his amp.
post #8 of 11
I have twice seen the bare wires from the paper cone to the terminal board intermittently shorting together. One was a sub and the other was a 2 way. The odd thing was they were both Paradigms.
post #9 of 11
It could easily be a speaker issue or an amp issue. The only way to verify which it is is to eliminate all possible problems one by one. The OP did state he is getting a hissing sound. Yes, a voice coil is wire, but if there is a section where it is damaged it could intermittently cut out. I have seen so many weird things happen with speakers, that I've learned to not rule anything out without testing.
post #10 of 11
Until the OP comes back with some more details hard to know....I did miss that bit about trying different speakers with the Onkyo which would seem to make the amp okay and point more towards the speakers...but OP needs to do some investigating and elimination if not open up those speakers and take a look....
post #11 of 11
Quote:
Originally Posted by lovinthehd View Post

Until the OP comes back with some more details hard to know....I did miss that bit about trying different speakers with the Onkyo which would seem to make the amp okay and point more towards the speakers...but OP needs to do some investigating and elimination if not open up those speakers and take a look....
+1
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