Hi All, I received my PB10 on Wednesday and has been playing with it for some time. This weekend, I popped in Dr. Chesky surround show DVD and it was awesome (great Demo stuff). There is a track in there with heartbeats at 40 thru 20 Hz. But when the 20 Hz track was playing (at -20dB), there wasn’t much effect and a lot of loud port noise. So my questions are 1. What should I be feeling at 20 hz? I was expecting to feel it more than hear it, but neither happened. 2. What’s with this port noise? Is it a defect or is it a limitation of this sub? Bejoy Note: My room is pretty big 15 X 18 with 18 ft ceiling and opening up to one side. I have corner loaded the sub and is driven by a Pioneer 1014 in an Athena ASF2 based system. I haven’t calibrated the system other than the Auto MCACC and a little bit of tweaking. The sub gain is at ½ way mark.