Not sure if everyone caught
this article in the last Axiom newsletter... I thought it was a very good read.
The whole article is good, but this is an interesting quote from Ian about how the lower-end of the Axiom lineup may actually produce more "tight" bass than the 600.
(Ian Colquhoun, chief designer and president of Axiom): “The reality is that a lot of the impression of tightness from a subwoofer is just in the crossover roll-off. If you have an adjustable crossover on your sub you can do this experiment by comparing the lowest crossover setting to the highest and see the impression of “tightness” go up with the frequency setting. Because of this phenomenon, an EP175 can, on its own, sound so-called “tighter” than an EP600, but this is because it does not have the sophisticated crossover that is in an EP600. Consequently the EP175 is playing (at a lower levels, mind you) those mid-bass frequencies that contribute to so-called impressions of "tightness." The EP600, on the other hand, has a brick-wall filter that does not allow any mid-bass frequencies to emanate from the subwoofer. If you really want “tight” bass, then you need to concentrate on the main speakers and amplifier combination because that is where those mid-bass frequencies are and should be generated. An A1400 amplifier and a pair of M80s will deliver the tightness you are looking for.”
