Since you never asked for advice or opinions on AK, I could not post without getting banned for gratuitous "Thread-crapping."
I could have PM'd you, I suppose, but....
In the period since you originally posted this thread, a group of us have pretty thoroughly sussed out 846A/B Valencias, essentially the same speakers, the major thread being here on LHF, but plenty of supplemental info also on AK. Advanced Search under my ID both places will turn up the threads and posts, if you're interested. The bottom line is shown here:
http://audioheritage.org/vbulletin/s...450#post211450
And the saga here:
http://audioheritage.org/vbulletin/s...ad.php?t=14690
If you like 'em, fine; there's plenty who do, but the info is available if/when you care to pursue it....