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Hissing sound

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=24925
Printed Date: May 13, 2024 at 11:24 PM


Topic: Hissing sound

Posted By: Haldol
Subject: Hissing sound
Date Posted: January 20, 2004 at 5:47 AM

Wanted to get a consensus on this. I'm using a Clarion DZX815MP and an OLD OLD Clarion 920EQ... and then there's the rest of the system. With everything hooked up, and the volume all the way to zero, I have this "hissing" sound. It's the only way I can describe. It sounds like the same thing you would hear if the mids/highs amp was turned up way too high. I started troubleshooting and it wasn't until I bypassed the 920EQ that the hissing stopped.

In my old system, I had the same set up except I used a Kicker KQ5 for processing instead of the 920EQ. No problems there.

I was told by another member that the problem I am facing is a common problem and occurs because my radio has a beefy 4Volt preamp out on the RCA outputs. The 920EQ, made in like 1994 or so is not capable of utilizing such a strong input so you get the hissing sound. Does anyone else have a thought on this?




Replies:

Posted By: sonicsound
Date Posted: January 20, 2004 at 12:33 PM
I would have to agree.  At least you know where the probelm is. And yes back in '94 the voltage maximum was 2 volts.  So that will be your problem.  I had the same problem with customers car who had an old Sony EQ with a new Premier deck.  You may have to invest in a new Clarion EQ.  Hope that helps...

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Sonic

Pioneer AVH-P4000DVD
Zapco 360.4
Zapco 500.1
Zapco SP-4SL Processor
Two JL 10 W3v3d2
Alumapro 15 Farad Cap





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