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1995 Firebird LT1 Auto
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92 Posts
Discussion Starter · #1 ·
I’be replaced the 2 speakers in the panels at the beck seat area. I believe they are meant to be subwoofers or something with the 10 speaker system. I replaced them and I do not get any highs, just bass. I’m assuming there is a crossover or something somewhere I can remove? . Can anyone recommend what is the best way to leave the other factory speakers as is and just have the rear seat speakers operate from my aftermarket deck normally?
Hopefully this made sense.
Thanks again.
 

· DELCO NERD
1993 Pontiac Firebird Trans Am, LT1 5.7L V8
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2,162 Posts
The amplifier behind the passenger side sail panel powers those rear seat speakers. It contains an active low-pass crossover. The speakers are designed to be factory "subwoofers." You'd have to bypass the factory amplifier.

Do the replacement speakers sound good?
 

· Administrator
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16,122 Posts
Are the speakers in the hatch area working? There are two speakers on each side, under the oval grilles that provide full frequency range. Seemed adequate from my experience.
 

· Administrator
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16,122 Posts
Doesn't the "fade" control work? Seems like that would increase the volume in the rear of the car, without giving up the bass of the subwoofers.
 

· DELCO NERD
1993 Pontiac Firebird Trans Am, LT1 5.7L V8
Joined
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2,162 Posts
Original poster: Are all of your other speakers working? (Are they original?)

The sound imaging is pretty impressive when all ten speakers are working properly. The reason I ask is because the original door midrange and rear hatch midrange speakers are known for tearing.

When I first bought my car, my door midranges were shot. All I heard was the tweeters. Once I figured out that the cones had completely separated and I replaced them, it made a big difference.
 

· Administrator
'93 6-spd Trans Am - '96 C4
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3,298 Posts
.... Can anyone recommend what is the best way to leave the other factory speakers as is and just have the rear seat speakers operate from my aftermarket deck normally?
Disconnect the speakers at the speaker or amplifier and run the Purple and Green pairs of wires from the head unit to them.

I'd leave it as it is personally. ...you really don't want a full range speaker that close to your ear. If anything, just disconnect those sail-panel subs and drop a pair of 10's in the rear well.
 
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