Rear speaker issues

[xtremerevolution]

Nevermind what I said. I just re-read what was posted above. The factory speakers on these cars must be some complete shit. Nobody these days bi-amps a DVC speaker with two entirely different signals.

Sounds like the only way to correctly fix this problem is what has already been suggested, to buy a cheap and weak 2-channel amp like an old Coustic Power Logic Amp-160 for like $40 and amplify the fullrange signal. Then again, I never really believed in dumping money into rear speakers anyway.

[alec_b]

That's exactly what they did. They fed two coils in the SAME speaker two DIFFERENT signals. The 10-ohm side operated the cone and the tweeter. The 4-ohm coil operated the "subwoofer". One speaker, attempting to do three jobs, on 2 different coils, with two different sources of power, at two different loads. Awesome setup, GM.

[hailukah]

That's exactly what they did. They fed two coils in the SAME speaker two DIFFERENT signals. The 10-ohm side operated the cone and the tweeter. The 4-ohm coil operated the "subwoofer". One speaker, attempting to do three jobs, on 2 different coils, with two different sources of power, at two different loads. Awesome setup, GM.

I did think it was a rather creative solution.

And why couldn't I be so eloquent with the explanation?

[spiderw31]

So this whole discussion got me thinking, and a did a quick google search. Seems that you can actually get DVC 6x9 speakers. They're intended to be used as a "stereo" speaker in classic cars that originally had mono radios. I'll bet a pair of those would work great as almost drop in replacements.

[xtremerevolution]

So this whole discussion got me thinking, and a did a quick google search. Seems that you can actually get DVC 6x9 speakers. They're intended to be used as a "stereo" speaker in classic cars that originally had mono radios. I'll bet a pair of those would work great as almost drop in replacements.

It seems that these two coils on these have a different impedance, which would therefore sound different if not matched. The midrange would be louder or softer than it used to be.

The best way to fix this is to get a cheap oldschool 2-channel amp and get a new set of 6x9s. Something like this:

http://www.ebay.com/itm/300w-Coustic...item415f94af9d

[spiderw31]

Heh... It would figure; GM engineering at its finest.

"Lets do a custom, high end sound setup. We'll use these custom DVC, 2-way 6x9 speakers on the rear deck, and we'll send an amplified low pass signal to one of the coils to improve bass response, and we'll use a different impedance for the second coil so our existing head units will work with it."

That's genius except for the part where IT'S COMPLETELY STUPID!

In that case, yes, just get an amp for some standard speakers, and life is grand.