I got a 91 RS and dropped in a CD tuner from a 98 Camaro.I have JVC front and rear speakers at the moment.Would I get better sound off what I have at 4 ohms or is it better to go with the factory impedence speakers to match the radio?What was the factory impedence anyways?Hmmmmmm.

-Ken

4 ohm is the norm for mids/highs, single 4 ohm or dual 4 ohm is the norm for subs.

chances are your stock speakers will be 4 ohm aswell

The stock 4x6's might be 10 ohm.. it will say on the underside of the magnet.

Mine are 10 ohm.

To answer the question in you title, YES.

Not just for the sound, but for the equipment lasting.

But in your case you should be good with 4 ohm speaker all the way around.

Reminds me of the two months i spent installing at Discount Auto Sound!!

How many cars did I have to wire up with nice aftermarket stuff, going through horibbly mismatched impedences....with subs speakers....whatever. What a discrace!

Yes 4 ohm per channel is the desirable impedence for that HU.

NEEDAZ, are you familiar with an active impedence matching network like the zobel? I'm in search of good schematics for one. I want to experiment with different types of speakers with different systems.

A Zobel network is a passive device and vary simple circuit with some vary complex theory to get it to work right. They are used most on the output of high-end PASSIVE crossovers that are to used with a dedicated speaker. They are a simple series RC network to compensate for the inductive slope of a speaker and give it a much flatter impedance. This is important with passive crossover because as the impedance goes up, so does the xover frequency (xover frequency being determined in part by load resistance/impedance). So your 6Db slope xover doesn’t have a 6Db slope with out a good working Zobel. The Le of the speaker being used will determine the value of the capacitor in the network. So the network must be designed to work with a specific speaker (or model of speaker).

http://www.trueaudio.com/st_zobel.htm
http://users.ece.gatech.edu/~mleach/...oads/zobel.pdf
http://www.audiotweaks.com/tweaks/tweak_387.htm

A well designed active crossover should not have these problems as they should not be load dependent.