Playing with new sub yesterday . I wanted to hear what it did so I played some music and then turned off my main speakers. Sure enough, bass coming out of the sub. I am fairly sure that from my seating position I could tell it was coming from the corner where the sub is. If I went further away in the room I could not. Am I totally imagining it? Is it impossible due to wavelengths and my ear's resolution or something? Can anyone else hear where ther sub is? My amp's LFE / Subwoofer cut-off is 90Hz (not adjustable). My mains are bi-wired to my "A" and "B" main speaker terminals, and turning on the just tweeters was quite entertaining, it made it harder to tell where the bass came from too. Also - it sounded pretty rubbish, mainly just a rumble / boom like being next door to a nightlub, I hope this is just because I have done no tuning at all yet. Does anyone know if Charly or Outer Space (Prodigy) deep bass should sound good, or is it just too old a recording? Do the people who are happy hear only really tight, punchy notes and tones if they do this? Never owned a sub before and I am looking forward to a Shinobiwan style revelation as I get it sorted out. Gear is Technics CD player through optical cable into Yamaha AX1 through decent wires into B&W 603 S2's (these have big woofer cones) and an SVS PC+ 20-39.