What's the crossover point of the 890C? Depending on the woofer specs, I wonder what a FrankenBolero with the later woofers and 3000 tweeter (and appropriate 3000Hz crossover) would sound like?
Altec's 12" woofers don't seem to have much of a problem getting to 3000Hz, anyway.
Altec's 12" woofers don't seem to have much of a problem getting to 3000Hz, anyway.