I built a few custom horn speakers and used Sony Alnico woofers (only 2 pair in the USA). I bi-amped them with custom tube mono-block amps that I built (1.5 watts) to drive the horns. They sounded amazing but they wee large so no WAF. I never could get the bass to keep up with the horns though. My buddy has Klipsch and why the mids are excellent, the bass always lags behind. Do not know his model but he has had them modified.
Happy Listening.