90 all trac system 10 speaker selection (relived)

mda185":66iff6q0 said:

...Building your own is almost always going to sound better and cost less than commercial sets. This is particularly true if you replace the factory amp with an aftermarket unit with built in crossovers. Parts Express has a very good inexpensive 4" driver that has more X max than anything I have ever seen from a commercial car stereo speaker. X max is how much travel the voice coil has before significant distortion sets in.

http://www.parts-express.com/pe/showdet ... er=290-212
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I like the LPG and SEAS tweeters sold by Madisound Speakers better than most of what Parts Express sells:

http://www.madisoundspeakerstore.com/auto-tweeters/

You can do this for far less than $200 if you take some time to learn how. If you upgrade the amplifier under the passenger seat to one with crossovers built in, this becomes very easy. Just set the high and low pass frequency to somewhere between 2500-5000 Hz depending on how low your tweeter can go. Higher is safer for the tweeter. Lower usually sounds better. Tweeters that will fit the OEM pod on the door will all have high crossover frequencies. It takes a larger, more expensive design to get a tweeter you can cross over around 2500-3000 Hz. You will also have to set the amps' input gain so the tweeter and woofer are equal loudness.
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