I haven't heard the supernova sub but I have the same sonus faber setup powered by a pioneer elite 94txh and I use a f113 sub. The sub blends really well with the S.F.'s and is louder, lower, and cleaner than any other sub I've had(velodyne hgs15, revel b15, mirage bps12 I think?) anyways its a great sub. I'd guess it be better but without hearing your sub, who knows.
Should i changes my sub to Fathom f112 or f113
I was reading how good the Fathom f112/f113.should i change my Supernova MKIV15...i like your recommendation if anybody did compare the two sub...my HT room 16'x23'x8' in 7.1 channel sonus grand/solo/wall/concertino.power by denon avr5800 soon to be replace?