I just set up a rig yesterday: SWR Grand Prix into a dbx 233 crossover feeding a Stewart 1.2 for the highs, a Crown CE1000 for the lows (both running bridged mono - 1600w of power!) Whoa! It kills! My question to you bi-ampers, where do you cross over? I had mine at about 500 Hz...stopped all that low information from overloading my 10's.