Heads up will yield 3 extra dB at 22 Hz ...

Bigjohn, Last year, We had a VTF-3 Mark II in the Theater room when the SVS B4+ arrived. There is NOTHING to prepare one for the sheer size of that monster. My wife was about ready to KILL me ... The VTF-3 auddenly looked like a multi-media subwoofer by comparison. The SVS lasted four months.