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New HU and Amp/sub problem

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Old Jan 8, 2008 | 07:20 PM
  #1  
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Default New HU and Amp/sub problem

Ok guys 95 cobra, with the mach sound sytem, problem is I just installed an alpine cda-9885 HU replacing an old alpine HU i had, my problem is I have a kicker amp and the two mach amps in the back, kickers remote is wired into the ford harness/HU harness and I ran RCA cables from the bass output in the back of the HU back to the RCA input on the kicker amp, every speaker works but thers no bass output am i missing something really simple and stupid? or do I have a genuine problem that needs some more diagnosing haha
Old Jan 8, 2008 | 09:06 PM
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Default RE: New HU and Amp/sub problem

No bass from your entire system, or just from your subwoofers?
Old Jan 8, 2008 | 09:25 PM
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Default RE: New HU and Amp/sub problem

oh sorry just from the woofers. rest of the system has bass
Old Jan 9, 2008 | 12:00 AM
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Default RE: New HU and Amp/sub problem

Make sure all your connections are correct, your remote turn on needs to connect to your facotry harness as well as run back to your kicker amp. Make sure your RCA's are on the input and not the output, sounds stupid but I had my amp mounted with the connects close to the floor and just felt for the input and accidently hooked it up to the output. Make sure your power and grounds are tight and cleaned connections.

Let me (us) know when you have done that.
Old Jan 9, 2008 | 01:56 AM
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Default RE: New HU and Amp/sub problem

Hey seight I know for sure all the connections are correct, And yes i have the remote running from the kicker up the head unit/ spliced into the harness, and yeah RCA's are on input as I have dont this before too. As well all my connections are clean and usually freshly stripped, umm and all grounds are bolted to bare metal I always make sure theres a good ground.
Old Jan 9, 2008 | 10:54 AM
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Default RE: New HU and Amp/sub problem

It isn't a simple setting on the HU is it?
Does the amp turn on?
Is remote splice not solid? Did you try running the remote to the fuse box to make sure it wasn't that?
That's all i can think of for now.... Those are things i would look at...
Old Jan 9, 2008 | 11:02 AM
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Default RE: New HU and Amp/sub problem

Nope checked all the HU settings as far as base and amp output, all turned on.

Yes the amp does turn on and off with the HU it has the green power light, good ground and everything, and yes the remote is spliced in, I tried using a fuse for the remote however that yielded the same result.
Old Jan 9, 2008 | 11:05 AM
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Default RE: New HU and Amp/sub problem

well, if the amp turns on then it definitely isn't the power, ground, or remote. Which means it must be a setting on the HU, a setting on the amp, or the RCA's or speaker wires to the subs got mixed up. those are the only options left. any pics of setup possible?
Old Jan 9, 2008 | 11:27 AM
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well when I get home Ill take some pics im posting from work atm, This is just driving me crazy tho it seems like everything should be right but im probably missing something really obvious.

I know I have the RCA wires set up correctly from the HU to the Amp's input and not output, and Idk maybe i missed something in the HU but i've tried every setting in the book related to amps/subs, would I need a line out converter ? because honestly it seems like im just not getting signal to the subs from the HU when i first plug in the RCA cables i hear the thump from the subs from the quick connection however after that its like their dead.
Old Jan 9, 2008 | 11:43 AM
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Default RE: New HU and Amp/sub problem

ORIGINAL: Asylum839

well when I get home Ill take some pics im posting from work atm, This is just driving me crazy tho it seems like everything should be right but im probably missing something really obvious.

I know I have the RCA wires set up correctly from the HU to the Amp's input and not output, and Idk maybe i missed something in the HU but i've tried every setting in the book related to amps/subs, would I need a line out converter ? because honestly it seems like im just not getting signal to the subs from the HU when i first plug in the RCA cables i hear the thump from the subs from the quick connection however after that its like their dead.
Yeah that's weird. That's why it sounds like a setting is wrong or something. Did you mess with the gain at all? You definitely don't need a LOC. go through the wiring one more time and take pics of it. It sounds like something that you just overlook.



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