Still looking for speakers in the 10-20,000 range

I was in a similar position a few years ago. Fortunately, I lived in the DC area and had a number of B&M dealers; plus the manufacturers who offered in-home audition. The one thing that I learned is that speakers sound very different in the store (or show) and in your own environment - especially when you have a large listening space. Some speakers grow into a large space, and some die. 

Good for you. Those polypropylene drivers are really dated. With AR electronics you really need some good speakers.

KEF Ref 3 have a great mid range, perhaps that is what appeals to you over the others you mentioned. Try to audition Harbeth, PMC and ATC - some other great British speakers with nice mids...

I don’t think Magico is worth waiting for. Better to stick to proven, time-tested designs like your AR gear! One notable audiogoner here also had some of the best in electronics but Magico instantly gave him a headache. You don’t need sizzle - stick to steak!

((((My amp is Audio Research, tubes, about 130 watts/channel.  I believe this is enough power for both the KEF Reference 3 and 5.  At least one person has told me that the 5 actually doesn't sound as good as the 3-- that despite more bass it sounds less integrated )))
Why worry
Take that ARC amp and install it on the top section of Vandersteen Quatro's CTs
 100 hz on up with the Hi-pass Think tight Bass or bloom in the bass your choice but you are in control. The built-in Quatros CTs amps are going to outperform any of the above in foundation with their tunable to your room compensation adjustment flexibility and total performance, you win because it is now bi-amped, seamless, full range, with drive excitment,balls and time correct as well.
Otherwise just keep your Proacs.
 Best JohnnyR 

"Otherwise just keep your Proacs. "

Buy Vandersteens or nothing at all? Hmmm, figures......


Oz

 

Fast,
Describe the sound that does it for you, otherwise all this advice is throwing darts and probably why you keep looking. If you're not sure, keep listening and spend the money to do so. For your price range, you will know what does it for you when you hear it.
+ 1 for any show recommendations.
Kenny