Curious, how much for a pair of the AlNiCo Betsys? I knew Randy from years ago with Decware amps (before Betsy). Also knew Darryl Hawthorne and still chat with his original crossover mentor. So have heard several versions of the Hawthornes.
Glanced at the Cube review (can't stand all the excess verbiage in 6moons reviews) - yuck! Expensive, look amateurish (whizzer cones are unevenly shaped), and 3 whizzer cones! (I consider whizzers to be mechanical crossovers.)
BTW I have a nice pair of extended range driver speakers just sitting around: Bob Brines FTA-2000 (he's retired now and changed names of the speakers a couple of times): Fostex F200A AlNiCo 8" drivers (no stinking whizzers), rated 30-20,000 Hz (not a misprint), 8 ohms, 89 dB/w/m, with EnABL applied by Bud Purvine (inventor) himself, $575 each when last available; cabinets are floor standing transmission lines.