Squealing from speakers
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Road Captain
Joined: Aug 2006
Posts: 707
Likes: 38
Squealing from speakers
Hey guys Im looking for help with an issue Im having. Bike is a 2012 road glide. It has an aquatics av AQ-MP-5BT-H Head unit, hertz 6.5s in the fairing, JL audio 8.8s in the lids and the 8.8s in the lowers. Its all being ran off two diamond 4V2 600watt amps. The one amp is wired front bridged @2ohm to the lowers, rear bridged @2ohm to the lids and the other amp is running off the front channels to the fairing speakers. Problem Im having is all 4 of the 8.8s have a high pitched squeal coming from the tweeters, the 6.5s in the fairing dont squeal at all. Its always there with the ignition in the run position, if I switch it to acc the squeal goes away. The squeal also gets louder or quieter based on the gain adjustment. The amps are wired with 4ga power and ground direct from the battery (50a fuse about 8 from positive post), the 4ga goes into a distribution block and then 8ga out to both amps for both power and ground. Ive tried everything I can think of but cannot get rid of the squeal. Any ideas? Sorry for the long post trying to give all the info I can
Thread Starter
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Road Captain
Joined: Aug 2006
Posts: 707
Likes: 38
Thread Starter
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Road Captain
Joined: Aug 2006
Posts: 707
Likes: 38
Ultimate HDF Member
Joined: Oct 2012
Posts: 6,621
Likes: 412
From: Indianapolis IN.
First rule of engagement. NEVER BRIDGE AT 2 OHMS!!
Bridging should Always be at a 4 ohm load!!
Bridging should Always be at a 4 ohm load!!
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Road Captain
Joined: Aug 2006
Posts: 707
Likes: 38
damn I specifically asked if it would be good bridged at 2 ohms and was assured it would be. Looking through the sheets that came with the amps it was showing bridged @4ohms 300x2 but it had N/A next to bridged @2 ohms, thats when I contacted the dealer about that. Anyway, how would you guys recommend wiring this? The rears bridged to one 8.8 per channel off the one amp then do the same for the front 8.8s off the other amp and run the 6.5s off the deck? Thanks for any help guys
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Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
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From: Lake, Ms
I agree with T on this. It'll take both of those amps ran in 4ohm bridged comparison to cover those 4 speakers and that's a lot of power to harness to keep from blowing those 8.8's. You can keep these if you don't get carried away and try to over drive them but you'll still need a Micro 4ch to push the fairing.