Having just looked at the photo of your room, very nice by the way, your seating position is very similar to mine. I'm using NVA Cube 3's and these are designed to go close to the wall, upward firing bass/mid driver. Mine are a little wider apart than yours and toed in at nearly 45 degrees. They are are so detailed and the bass tight and fast with the best soundstage of any speaker I have owned.
As per Phil The Count's last post on the Bach violin sonatas & partitas thread, I had a look at Alina Ibragimova. Damn - she records on Hyperion now which isn't available streamed. And the CD set is damn expensive!
But I turfed out this YouTube vid of her playing the 2nd Partita (in 3 consecutive linked vids), recorded a couple of years before she did the Hyperion gig, I think.
It is very good!
Crossover components arrived and duly replaced, still no sound out of 1 B200!! Took that out, and replaced it with one from the pair of 104's I have, still nothing, checked both speakers with the old 9v battery test, both seemed ok. Anyway after a lot of head scratching, cursing ect, I removed the offending Xover, again, and starting testing it, checking solder joints ect. It was while doing this I realised that when the wires were removed from the speaker binding posts, I could test the speaker positively, but as soon as I connected them back up, and tested from the binding posts...nothing
I removed the binding posts to find them covered in bitumen, after a lot of cleaning in Isopryl, and replacing, we have music!!
The drive units are held in with 2 screws apiece at the moment (no faith in my repair!) but are sounding very good, if not a little brighter than expected, no bad thing. I will play around with more wadding later, and report back.
No, I run them at 5 volts, not 12. That is just enough to kick start them and run them at a slow speed. At the moment I am using 5, but they do have to be selected for lowest noise, and the bearings age and become noisy eventually. They are hung from cords to isolate any vibration from the amps, and I made a variable linear PSU for them.
But they do spread the dust!