Power to drive ProAc Studio 140s...

I'm considering the Quicksilver Mid-monos for a new system and wonder if anyone has experience with them or other 50-60W amps driving the ProAc Studio 140s. The Quickies do well with my other major candidate, the Thiel 1.6s.

Advice, thoughts? (be gentle, this is my first post. I'm entirely replacing an old system and need to be budget conscious).
it would appear you're batting a thousand so far.
I drive mine Studio 10 with Gamut D200 mkIII (way above Studio's price range) with great results.

These speakers grow a lot with good amplification. Don't be fooled by its high sensitivity specifications. They love power.