Rhljazz, have you thought of taking a cheaper option in monitors and integrating them with a stereo pair of seal boxed subwoofers? I think that the finest top end that you can get is probably in the ported Talon Hawk monitors and I have linked these with a pair of Velodyne DD12 subs in 2 channel. As the key advantage of sealed seems to be in the bass region, I think this is a very cost effective and interesting alternative. If you want to go completely OTT you might add a pair of supertweeters to this set up (I use the Townshend supertweeters). The only challenge then becomes one of integrating them into your system and room. This seems to exceed any single boxed designs that I know of, giving frequency extention of 17Hz-100Khz, exceptional speed and flexibility in set up.
I hope this does not seem too off beam and proves of some use.
I hope this does not seem too off beam and proves of some use.