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Can I add an aftermatket amp & sub to car w/ factory amp
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2001Ls
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PostPosted: Wed Jul 03, 2013 1:26 pm    Post subject:  Can I add an aftermatket amp & sub to car w/ factory amp Reply with quote

My car is a ls with the factory amp. I have an after market amp and battery cable and want to add subs onto the stock system. I do not want to remove or disable the fatory amp. Does anybody know if I can use the factory amp as a preout that signals to an amp running a sub? Please let me know or point me in the right direction. Thanks!

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PostPosted: Thu Jul 04, 2013 2:10 am    Post subject:   Reply with quote

The factory amp receives speaker level input from the radio, you'll still need a line level converter to get signal to the sub amp if your amp can't take high level input. If you don't know, assume it can't, protection is cheap.

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2001Ls
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PostPosted: Thu Jul 04, 2013 6:36 am    Post subject:   Reply with quote

Dan wrote:
The factory amp receives speaker level input from the radio, you'll still need a line level converter to get signal to the sub amp if your amp can't take high level input. If you don't know, assume it can't, protection is cheap.


So I splice the RCA hi-lo adapter at the radio harness right? Or am i going to tap in at the amp and if so input to the amp or output from the factory amp. Which outputs should I splice into because if I'm not mistaken there's a hi and low output for each front 6.5 and each rear 6x9. Obviously once I get that figured out I can plug the RCAs into my sub amp.

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PostPosted: Fri Jul 05, 2013 4:50 am    Post subject:   Reply with quote

Get your signal at the rear speakers, easiest for you to run it like that.

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PostPosted: Fri Jul 05, 2013 12:28 pm    Post subject:   Reply with quote

Do i neef a hi lo converter if i get the signal from the rear speakers? I have a wire that has speaker wire on one side and 2 rca on the other side. Can i use that?I did that yesterday and it was working just very distorted .Though I must have crossed the wires at some point when i was adjusting them because I blew out my right side of my factory speakers they now don't work and I could smell burning. I think I some how blew the rightside of my favtory amp. Any ideas? Thanks.

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PostPosted: Sun Jul 07, 2013 4:15 am    Post subject:   Reply with quote

Broken and on fire?

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PostPosted: Sun Jul 07, 2013 11:17 am    Post subject:   Reply with quote

No just somehow broke the right side speakers. I rewired the speaker cable to RCA wires to the left rear 6x9 and connected them to the amp and it works. Just really weak. I have like a 500 watt rms amp. Can't seem to get it tuned properly.

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PostPosted: Sun Jul 07, 2013 1:50 pm    Post subject:   Reply with quote

In my 03 Grand Am the factory amp was wired to the factory speakers and I added a sub with it's own amp that was driven separately. Unfortunately I'm not big into the audio game so I had a shop do it, don't know how it was all hooked up.

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PostPosted: Tue Jul 09, 2013 6:07 pm    Post subject:   Reply with quote

I got it hooked up and its working. Sound quality sucks though, I guess because the feed is from the rear speaker. Anywho, hopefully I dont blow my sub or amp.

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PostPosted: Wed Jul 10, 2013 10:30 am    Post subject:   Reply with quote

2001Ls wrote:
I got it hooked up and its working. Sound quality sucks though, I guess because the feed is from the rear speaker. Anywho, hopefully I dont blow my sub or amp.


Are you using a line converter? If not, you are pumping a high level signal into a low level input on the amp.

and by converter, I dont mean the RCA / bare wire adapter you had. Thats not a converter.

example...

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PostPosted: Wed Jul 10, 2013 5:12 pm    Post subject:   Reply with quote

The amp I have has speaker level inputs. Its a hifonics bxi2006d.

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PostPosted: Thu Jul 11, 2013 8:08 pm    Post subject:   Reply with quote

I just looked up the bxi2006d. From what I can tell, the amp does NOT have speaker level inputs.

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PostPosted: Fri Jul 12, 2013 3:09 pm    Post subject:   Reply with quote

I see some websites say it has speaker level input and some sites say it doesn't. It it doesn't would I run the line level converter from a splice in the rear speaker still or would I have to go up to the head unit harness? Right now I do not have the line level converter and the bass is very mixed in with highs coming from the subs. .... come to think of it the signal from the headunit has to be low level because it is going to the factory amp. So if my amp has low level input I cab run splices from the headunit right to the secondary amp without line level converters (theoretically? ) .. I also read in the HQ article that the headunit senses if the factory amp is tampered with and starts sending speaker level.... 2 cents anybody?

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PostPosted: Sat Jul 13, 2013 9:35 pm    Post subject:   Reply with quote

Here's two real cents - you ruined it. Time to start fresh.

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PostPosted: Sat Jul 13, 2013 11:10 pm    Post subject:   Reply with quote

I blew it?
http://www.youtube.com/watch?v.....ata_player

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