True Sound Works Apogee Diva Ultimate - Any Good?

11-30-13: Rlwainwright
IIRC, the Apogees are a *very* difficult speaker to drive properly. My reading indicates that they can drop as low as 1 ohm at certain frequencies, thus they are very taxing for 99% of the amps out there. Also, they present a very reactive load to the amp. And not very many amps are happy with such a load.

How do you know this, Rlwainwright? Did you own Apogee Divas at any point in your ownership of various audio gear? AFAIK, the Apogee Diva is a much easier load than, say, the Apogee Scintilla 1-ohm version. Here is a review from Stereophile from 1988 that shows an impedance plot (unfortunately no phase plot) but you can see that the Diva's impedance is, for all practical purposes, flat at nearly 4 Ohms. It does dip down lower at 20KHz but the program material power at 20KHz is likely to be very little.
http://www.apogeespeakers.com/reviews/diva_stereophile_august1988.htm

Additionally, they are known to have a *very* small sweet spot and positioning and setup are absolutely critical if one wishes to achieve the best listening experience....

again, may I ask how you know this bit of info??
Thanks.

Brian_beck, this was my experience with Magico as well. I heard a couple of their smaller speakers with a variety Bryston amps. The small was small for one of the speakers & there was bass overhang. If I discount that effect, I would say that these Magicos came up way short on the 'magic' factor esp. considering their price.
FWIW. YMMV. IMHO.