I hadn't planned on buying a proper sub amp for my 360L 16Hz Tempest for a few months, but I just can't get it out of my mind. My first choice seems to be the AVA 250, since I am from Canada eh. I am curious about the 18Hz rumble filter. 1. How will this work out with a 16Hz tune? Will I lose from 15-18 hz? 2. Can anyone from Canada tell me their final price for the PE300-794 after shipping and duties? 3. Is the AVA 250 the best amp for me in this price range? 4. Is the power output 272 watts at 4 ohms same as the PE amp? All advice is greatly appreciated, thanks!