Please allow me to debunk a few misconceptions. First, the Eidolon Diamond is currently Avalon's newest product but it is important to consider this as an entirely new design, one which is separate and distinct from the Eidolon. To simply consider it as a refinement of the Eidolon's design parameters is like calling the Eidolon a redesign of the Ascent (Avalon's previous 3-way flagship). Also, the inference that all Avalon speakers have the same sonic signature, and that bass response is the principal improvement as you go up in price (and size) is a gross oversimplification and simply untrue. If that were truly the case, Avalon owners would do best to stay with the Avatars and use subwoofers. BTW, it is important to note that the Eidolon has far better lower octave performance (extension and definition) than either the Ascent or the Radian, both of which had physically larger cabinets.