Dwhitt: your second post raises a topic that deserves further discussion on this site. To make my point at the outset, I personally believe that many young listeners have a totally unrealistic notion about bass reproduction. Car audio is somewhat responsible for this: witness the phenomenon of hearing thumping low bass coming from a car that is 3-4 blocks away and yet discernable through heavy traffic. That is not bass reproduction -- it's manufactured bass that has virtually nothing to do with realistic, natural reproduction of musical instruments.
The Vandy 2Wq sub, and its companion HT model the V2W, do an excellent job of reproducing the lower bass frequencies that are actually found in recorded music (or DVD tracks). Good subwoofers should NOT be discernable when there is little or no audio signal in the low and mid-bass range (typically in the 20-60 Hz range). The acoustic upright bass produces notes down to about 32Hz, and an acoustic grand piano may produce notes down to around 24Hz. The only musical instrument that produces lower frequencies is the pipe organ, which may have frequency response down to 16Hz or so.
A really good sub should integrate with the main speakers. One of the design characteristics of the Vandy 2Wq sub (and other good subs) is their frequency overlap with the main speakers. The Vandy sub and crossover are intended to be used with full-range speakers, so there is substantial overlap between the speaker and the sub in the critical 60-80Hz range. Without this overlap, you may create a dip in the upper-mid bass, which makes the deeper bass notes sound over-emphasized.
