Distortion Issue - AVS Forum
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post #1 of 7 Old 09-05-2013, 11:16 AM - Thread Starter
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Hey guys,
Somewhat of a newbie here but I just got finished setting up my home theater.
I'm was working on the speaker/receiver fine tuning and configuration and one thing that I've noticed and is driving me crazy is that when I've been testing blu-rays any time there is a sudden moment of loud dialogue like someone suddenly screaming or shouting there a crackling sound. Its not overbearing or constant, only during loud dialogue it seems, but it is driving me crazy. I have a 5.1 setup. At first I thought it was the center channel but I turned the center channel off and even when the sound is coming out of the front speakers I hear the crackle.
My setup is: Onkyo 818, Polk Monitor 60's (front), Monitor CS2 (Center), Monitor 45's (rear) and generic 12' Sub.
Its significantly more evident after running the Audyssey, i've reset the receiver and it runs better. I've tried changing ever setting Dynamic EQ, Dolby Volume, Loudness Etc.. But cant seem to pinpoint the issue.
Does anyony have any suggestions or thoughts?
Thanks!!
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post #2 of 7 Old 09-05-2013, 11:22 AM
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Find a scene that causes the issue and run it repeatedly but only connect one speaker at a time to find out which speaker(s) are doing it exactly.

Also check your crossover settings to ensure you aren't sending things to your speakers/sub that they can't handle.

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post #3 of 7 Old 09-05-2013, 11:37 AM - Thread Starter
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I've tried to narrow it down to the speaker but it seems each speaker I try has the same issue, Center front and rears.
I've also tried a few different settings for crossover: 40Hz, 60Hz, 80Hz, Full Band and 200Hz, seems like each one of those settings has the same issue.
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post #4 of 7 Old 09-05-2013, 11:39 AM
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Have you disconnected the sub for part of your testing?

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post #5 of 7 Old 09-05-2013, 12:49 PM - Thread Starter
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Havent tried that, you think the sub is causing distortion out of the center and front speakers?
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post #6 of 7 Old 09-05-2013, 12:57 PM
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I think if you haven't checked each of the speakers one at a time including the sub that you can't rule out any of them.

The sub could also be the one making the crackling sound and until you test with it disconnected you won't know.

I am not implying that the sub is causing issues with the fronts or center.

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post #7 of 7 Old 09-05-2013, 01:06 PM
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Quote:
Originally Posted by iversonbiatch View Post

Havent tried that, you think the sub is causing distortion out of the center and front speakers?

I think you wouldn't be the first person to misidentify the speaker that a funny noise was coming out of.

If nobody else, there's me! ;-)

BTW I recently had a driver go bad in a Sub (Foam rot) and the symptom was a crackling noise.
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