Sogood51...It was a surprise to me, but I measured about 4.5 watts rms into each of my three SW system, a total of less than 15 watts, to shake the windows in my listening room, using a warble test signal around 30 Hz. The assumption that LF takes a lot of power does not stand up to objective measurement. My CarverPro ZR1600 amps drive a woofer system with one side and a MG1.6 with the other, and if I crank up the volume I can make the MG1.6 side clip (LED indicator) while the SW side is still loafing. Hard to believe, but that's the fact.
You might want to check Rives website and study up on room resonance. (Maybe buy his gadget also).
You might want to check Rives website and study up on room resonance. (Maybe buy his gadget also).