I have a pair of 12" woofers from some really bad speaker enclosures I built 20-something years ago. The tweeters are still OK, but the midranges and the crossovers are shot.
I'd like to build some better boxes for the woofers, and use car stereo speakers for the midrange and tweeter. To keep it simple, probably a full range 5.5" or 6.25" speaker with a wizzer cone so I only need a simple 2-way crossover; probably with 6dB/octave cutoff.
It has been too long since I was in college and studied this stuff. How best to deal with the different impedences? I suspect a resistor or rheostat in series with the 4 ohm speaker would change the characteristings of the high pass filter.
Is this whole idea stupid? Should I look for small 8 ohm full-range speakers instead of using ubiquitous 4 ohm speakers?
Thanks, regards, Bob