I just found this thread. Sweet!
I've had a pair of Beethoven Grands for the last three years or so in my 2 channel music system. I auditioned a lot of speakers over several months, and these we my consistent favorites. I'm very happy with them. The biggest positive for me is the imaging. With good source material, the soundstage extends well past the speakers. There is a lot of depth and height as well. The overall tonal balance matches well with the rest of my equipment, and the dynamics are good.
I have them set up 3 ft from the rear walls and about 11 ft apart. I had to play around to find the right position, toe in, and tilt (slightly back) to get them to really sing.
I'm running McIntosh 2102 amps as bridged monoblocks, 200 WPC, which is more than enough for these speakers. The Mac's are very detailed, a good match for these somewhat laid back speakers.
I am cheating a little in that I'm running some stereo ACI subs. You can see the Classe' power amp and Behringer equalizer on the left in the picture. The subs are equalized to only augment the 20-40 Hz region, and then only a little. The Beethovens are run full range, no crossover.