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Old 03-03-2013, 11:29 PM   #1
Join Date: Aug 2012
Posts: 18
2012 Radio- To much bass

I have searched and cannot find someone that has identified this problem. My radio in the 2012 JK is the cheapest model, no sub, just bare bones. I have replaced everything but the head unit, I have the stock head with 4 Polk audio. Speakers and one alpine X sub.

I know that it is a strong sub but something is not Right. This sound is booming, it will even boom on voices like Howard stern or HLN news. I have never had a radio act like this, gain is down to zero, head unit bass is down to zero. I am convinced it is the head unit, maybe it is because we used line in's since there are no RCA,s. This happens on both Sirius and radio. The radio audio also has turned off before for days and then will come back on.

I wonder what the dealer would do with a bad head unit but all my after market stuff.

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Old 03-04-2013, 09:39 AM   #2
Trenty's Avatar
Join Date: Nov 2012
Location: New York City
Posts: 86
I kept my stock head unit as well and I'm paying for it now. The unit cannot properly regulate aftermarket subs apparently because it causes my subs protection to shoot on and cut off power to the sub whenever I raise the bass to a decent level. Now I have twin 12s sitting in the trunk barely on because of it. Took it to multiple sound shops, replaced the sub thinking it was the cause, and still it happens. The last shop I took it to said he read this head unit will send abnormally high voltages and mess up the bass. Idk if that was BS or not but sounded plausible. .

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Old 03-04-2013, 10:26 PM   #3
Join Date: Aug 2012
Posts: 18
Thats what I was afraid to be the case. When my 12 inch sub is rattling the windows with talk radio I knew something was wrong. God- all I wanted from this piece of crap is the signal and it can't do that. I will need to find a radio that is Sirius and that is about it. I have everything locked down so I don't want a aftermarket radio in the dash. Maybe a removable face plate. This radio has also cut off about 5 minutes into a 3 hour drive so it is time to go aftermarket.
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Old 03-05-2013, 12:42 AM   #4
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Join Date: Mar 2013
Location: Windsor, ON (near Detroit)
Posts: 1,273
What amplifier are you guys using?
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Old 03-06-2013, 09:02 AM   #5
Join Date: Aug 2012
Posts: 18
2 brand new amps by Alpine, no rca's on stock head unit so we are doing line in's. Gain is zero.
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Old 03-06-2013, 01:23 PM   #6
Join Date: Sep 2012
Posts: 23
Stock HU is most likely the culprit. The frequencies are altered to perform with the crappy stock speakers. If you are dead seat against a new HU, you can go with a signal processor to fix the frequencies, but it will cost as much as a new HU. BTW, I went with the JVC Kw-AV64bt. Double din with detachable face plate--since security is definitely a concern when riding doorless/topless. Hope this helps.
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Old 03-06-2013, 01:28 PM   #7
Join Date: Dec 2012
Location: Bakersfield, CA
Posts: 96
Get a 1/8" mini (headphone jack) to RCA converter and go directly from your phone/mp3 player into the amp and see if that makes a difference. Just a troubleshooting step, I'm not suggesting permanently running that way. Just make sure to start with your volume all the way down on the device and then work your way up.
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Old 04-11-2013, 09:20 PM   #8
Join Date: Aug 2012
Posts: 18
Found it! It was a bad fuse holder on the battery. go figure, I replaced about everything to find it but at least my system looks good and the head and EQ are cheap but great.
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Old 04-11-2013, 09:21 PM   #9
Join Date: Aug 2012
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130 stereo , bass , booming , radio

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