Hi. I use silverline bolero with 2a3 push pull (not set, but less power than your 211 probably). lots of bass and fabulous highs. they have changed the newer models somewhat and suggest at least 10 watts (bolero supreme, not the new grand bolero which are big bucks). new they are out of the price range you suggested, but they come up used from time to time for about 4 ro 5K. i have bought most of my gear from an audio note dealer and can also say the audio note speakers are just plain musical (particularly if you have your corners available -- better but not necessary according to the dealer). i thought the silverlines had a bit more base.
