Speaker recommendations wanted for Quicksilver M135 amplifiers

Although you haven’t yet stated your sound preferences, Johnny R @audioconnection knows Quicksilver inside and out, and if he’s recommending ProAc (which I was gonna also recommend BTW) and Vandy I’d take that very seriously.  I’ll throw in Joseph Audio, Usher, QLN, Reference 3A, and Verity Audio as other relatively tube-friendly and excellent speakers to consider.  Read reviews of the above and, if at all possible, go to a dealer and give those that pique your interest a listen with your music.  Or, get to my home state of NJ and have Johnny R give you a kick-ass demo with both ProAcs and Vandys — it’d be well worth the trip.  And yeah, I’ve been there.  He’s the real deal. 

Good QS group on Facebook. Ask there.

Vandersteen Model 5, 5A were paired up some times with the QS MX-135 amps years back, and forward. Said to be "consequently, can be driven by a mid-power amplifier despite its modest sensitivity of 87db". Also helped by its built-in sub, etc. Worth looking into even if they are older and require some type of refresh, updates - considering the desired price range. As recommended, check with Johnny R.

I've seen MX-135s on sold years later at my local dealer, and discussion around driving various electrostat speakers there too. Some transformers in them, fwiw.  

Quolio IQ (use headphone, good one)

If you ever decide to sell the M135 monos please let me know- thanks!