Here is the room response for the little Sound Dynamics RTS-3 that the Absolute Sound liked so much.  It uses a ported 6" woofer and a little 1/2" dome similar to the Audax polycarbonate tweets that sell for about $6.  The crossover is minimalist, but does provide good driver integration.  The problem with this $275 (pr) speaker is the mid-bass.  Can you say booooooom?  The flimsy cabinet doesn't help.