Mark is right, they did change the range. I think I had the older EP500s, and there was very little range to work with. It was either too quiet, a small area of just right (like between 1:30 and 2 o'clock), or way too much. Don't worry about turning it up if you want to, the subs have internal protection.

LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7