Proac D48R

Does this mean that ProAcs and Solid State amplifier don't go well together?

Not at all milpai.....Pass as already mentioned and Plinius come to mind as does the Primare that Pete mentioned.  Some like Naim as well.  I used a Rega Elex-r with my Proac d20r with good success in a small room.  Keep us posted.  Regards.......

Thank You for the clarification carmenc.

And how would you describe the ProAc sound? In my room, with precise placement, my Quads's sound stage starts about 2-3 feet behind the speaker front face. And the sound stage is pretty wide, since I moved them 65" from the back wall and 36" from side walls, with 9 feet between the tweeters. If I change the speakers, I do not want to loose this character in the sound that Quads currently provides. I am looking for more refinement in treble and bass extension.

Perhaps the best midrange I've ever heard with the utmost refinement.  There is a review on line that refers to the 20r as the Baroque speaker.  I'll try and locate it for you.  I only sold mine because I was looking for more well defined bass and an ability to unravel complex passages as I sometimes listen to large scale classical and fusion.  As they say, you can't have it all unless you're willing to spend major bucks.  I've since gained more drive and speed with my Tannoys, but have lost out on that emotional Proac midrange.  It seems I've unfinished business with Proacs.  I most likely will get a pair of Response d2 in the future with a tube integrated.  The sweet spot seems to be the Proac d30r as it has a different driver than the 20r.  Carbon fiber as opposed to glass fiber.  More well defined bass.  There is just something about the Proacs that has me hooked.  We'll see.  Regards.........

Yes, I have read that review about ProAc 20R as the Baroque loudspeaker. But there was another audiogoner who was trying to sell his D30R because it seemed to lack the bass. Take a aook at erikminer's system. He has those speakers. The D48R seem to have 4 ohm nominal impedance Vs 8 ohms that I would prefer, my system having a passive preamp.