There are certainly some similarities with the 500 sub, and revels sub, looks, design, driver (although revel uses a 15") and control panel, also software for set-up. Thats not a bad thing cause this sub cost over 3K, Axiom new "higher priced" subs, may not be that expensive, and can't see the company walking away from providing the most bang for the buck. http://www.soundstage.com/revequip/revel_b15.htm

Sunfire amps & processor Sammy 50" Crown amp 2-SVS SS Maple Ultras, Axiom 60s,22s,150cc, QS8s