I owned these many moons ago, one of the best Klipsch made, they don’t shout at you, any amp will drive them.
But the best from my experience is a tube amp, one that has a tight bass not a thick bass that makes the mids euphonic.
I had a 4 per channel EL34 pentode push/pull that I put a variable feedback dial (0-30db) on, easy to do, so you can get just the right output impedance (damping factor) for the bass, for whatever speaker.
Cheers George
But the best from my experience is a tube amp, one that has a tight bass not a thick bass that makes the mids euphonic.
I had a 4 per channel EL34 pentode push/pull that I put a variable feedback dial (0-30db) on, easy to do, so you can get just the right output impedance (damping factor) for the bass, for whatever speaker.
Cheers George