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Replacement Speaker Bi-Amp Modification


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qlopp 
Member - Posts: 18
Member spacespace
Joined: November 16, 2005
Location: United States
Posted: December 03, 2020 at 12:30 PM / IP Logged Link to Post Post Reply Quote qlopp
Hi, I have a project I'm considering which is to replace the rear deck speakers on my 2007 Camry HV w/ "8 speaker" JBL option. The rear deck oval shaped JBL speakers are bi-amp types: each coax speaker receives two sets of wires from the amp (one low frequency, one high frequency; the factory audio amp has a crossover function built in).
I've been out of car audio for so long I can't even remember how typical aftermarket coax speaker are made, not to mention that I always installed component mid/tweeter kits when I did premium audio back in the day.
Anyways, looking at a few coax speakers online it appears that they usually seem to run the wiring for the dome tweeter portion aka "bridge" of the speaker from the 1/4" wiring tabs into the center of the magnet and then through a hollow tunnel to the tweeter bridge. Is this true?
If so I could take my pick of virtually any coax speaker that has the right depth requirements, adapt it to the deck, and then cut the leads at the tabs and wire them to the factory connector's high frequency wires, then connect the factory's low frequency wires to the speaker tabs to drive the 6x9 cone.
Will this work?
Another question, do typical aftermarket coax 6x9s usually have a basic 6db/octave capacitor built into the bridge where the tweeter is mounted? Or are their tweeter designs naturally made to roll off when receiving full spectrum audio? I will be driving then with high pass signal so I'm not worried about damaging or overworking them, but having a built in capacitor in the circuit could choke an already high pass signal which is my second concern.
Thanks!
i am an idiot 
Platinum - Posts: 13,286
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States

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