Hi, I'm interested in the bass management capabilities of Tag's AV30R/AV32R. I've looked at the manuals on Tag's site and they don't seem to be very informative. Does anyone know what range of crossover between sub + mains can be set and in what increments? Reason I ask is that my sub (Sonus Faber Gravis) won't go above 65Hz and each position on the dial seems to be on odd increments (i.e. next one down is 58Hz) Thanks, Jules.