rear 6x9s with subs

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jm93

Member - Posts: 12

Joined: July 13, 2003

Posted: August 14, 2005 at 10:31 PM / IP Logged

ok i got some subs, wired em up using my factory system in my 01 sunfire, and i was told to run a wire right from the speakers to the amp for the subs. so i did this, and splices into that wire AFTER the factory amp. now, my rear 6x9's dont wokr at all. any ideas where the problem is on that one?

godblessdremil

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Joined: August 03, 2005

Location: United States

Posted: August 14, 2005 at 10:50 PM / IP Logged

On some amps instead of using an RCA you can use a plug that comes with the amp and get the signal from the back speakers. If you spliced the amps output terminals to the speaker two things or bolth happend. 1) ya blew 2 channels on your factory amp 2) you blew the speakers.

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jm93

Member - Posts: 12

Joined: July 13, 2003

Posted: August 14, 2005 at 10:53 PM / IP Logged

so you think wither my factory amp, or my 6x9s are blown? i just spliced from teh rear speaker wire to the mono amp, the way i was told on here, and by an installer. wouldnt the factory amp power the fronts too? because they work fine.

godblessdremil

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Joined: August 03, 2005

Location: United States

Posted: August 14, 2005 at 11:08 PM / IP Logged

Ok tell me exactly how did you wire it to the mono because you are just saying you ran a wire to it. Another thing you can do is tone the speaker, or if you don't have one just use a AA battery to crackle it + - + - -.

jm93

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Joined: July 13, 2003

Posted: August 14, 2005 at 11:17 PM / IP Logged

ok, i spliced from the wire that runs to the rear speakers from the factory amp. so the wire goes from the rear speakers to the mono amp. right speakers to the right speaker hookup on the amp. left to left hookup.

godblessdremil

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Joined: August 03, 2005

Location: United States

Posted: August 14, 2005 at 11:29 PM / IP Logged

From the way you wrote the description it looks like you hooked up wires ya spliced in to the ouput terminals(The same ones as your subwoofers) correct me if i am wrong cause you are writting very vagly, and try what i said to see if the speakers are good, if they don't crack then they are bad.

jm93

Member - Posts: 12

Joined: July 13, 2003

Posted: August 14, 2005 at 11:36 PM / IP Logged

im not sure how to explain it. my car was compleyely factory, except for these 6x9's i just installed. i wanted to put a amp and some subs in. so i ran the wire for the speaker input on the amp, from the wire that runs from the factory amp to the rear 6x9's i spliced in along that wire right to my amp. make sense?

geepherder

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Joined: October 27, 2003

Posted: August 15, 2005 at 6:47 AM / IP Logged

You'll want to use an LOC (line out converter). Tie into the rear speaker leads and connect it to that. From there you can run RCA's to your amp. From your amp, you'll run speaker wire out to your subs. Then all you need is power, ground, and remote.

You mentioned you have no sound from your 6x9's. Do you have sound from your subs?

My ex once told me I have a perfect face for radio.

stevdart

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Posted: August 15, 2005 at 7:39 AM / IP Logged

You're using the high level (speaker) input of the amp. Here's the test: disconnected battery ground. Disconnect the input plug where you have the wiring going into the amplifier, thus disconnecting the high level amp input. Power back up; do the rear speakers work now?

Then, disconnect the actual wiring into the plug that you wired. Do the rears work now? What you're doing is going back in reverse of the install and finding the point where the rears start working again, so you can see where the problem lies. Disconnecting the battery ground each time while you are messing around with wiring is a safety issue.

If you find that the speakers once again start working while testing like this, rewire the input, as you had the wiring mixed up. If the wiring was proper, the culprit is the high level amp input sensitivity. Amplifiers have to have a certain input voltage for a hookup like this, and it's not adjustable. Your OEM voltage in the rear speaker wires could be causing the problem. A variety of strange things will occur if there is a mismatch of voltage and drive you nuts troubleshooting for the problem. Instead of using the amp's high level input, use a high quality adjustable LOC.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

jm93

Member - Posts: 12

Joined: July 13, 2003

Posted: August 15, 2005 at 12:34 PM / IP Logged

i think your right on the LOC thing. ill pick up a loc today and play with the wiring a little bit. ill let you know what happens.

-John

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rear 6x9s with subs

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