Upgrade from Proac Response 1SC?

Cooper52, I happen to have a very nice pair of Merlin TSM mmm on Audiogon right now. They are wonderful speakers and priced right if you are interested. Only reason I am parting with them is my wife decided I'm back in the big room since it is walled off from the kitchen. She can stay in there where she belongs ;-). Even though they still sound great in this room it is a little large at 26x24x14. In my old room of 25x16x8 they did everything I could ask from 50hz or so up. 

Diapason Adamantes III (used) or Diapason Reference (new) from Italy, sound so beautiful!! 

@cooper52 I heard both the D2 and the D20r this weekend. Side by side, the D2 sounded *just* a little strained and the D20R had much more of a "live-sounding" feel. Think this is what some folks refer to as "presence". It felt like a living breathing thing in the room rather than a speaker playing music exceptionally well.

I am not sure if this is because the D2s had not broken in yet.

I am leaning towards the D20R right now - with my only concern being a floppping/huffing bass when driven loud by a relatively low powered 35w/ch PrimaLuna classic amp. I fully intend to buy the 20R - what they did with the midrange was just magic. I don't think I have relaxed more visibly into the sound of a speaker than I did with these. They are liquid and just envelop you in a blanket of sound.

My challenge will be to get a good SS amp to grip the bass - but that will be another journey, I guess :)

Thanks for the response (no pun intended), badri. I hope to hear the D20Rs one day, assuming I can find a ProAc dealer within a day's drive of here. I'm still using my Hegel H200 integrated which definitely keeps a tight grip on the bass, but that's aided in no small measure by my REL S-2 sub. Not sure if you want to go the sub and/or SS route.