Speaker most similar to Proac REsponse 2

Just a guess but possibly one of the Harbeth Monitors.........

Why not pick up a pair of Response 2's that show up frequently here on Audiogon? You might be surprised, though, as I had a pair I eventually sold to a friend after replacing them with Gallos. When I heard them at his place a while later I thought they were very boxy sounding and not very impressive in general. Memory can do strange things :-)

Dave

the proac D2. the change in 'house sound' has been overstated. The D2 is one of the best 'british' bargains out there, and is a worthy successor to the response 2.

I would second the idea of the Response 2.5. You get all that's excellent in the 2's with the benefit of a more extended low end, and you don't have to deal with the extra heavy stands that the 2's need to perform at their best. Other than that, I would also second what Jaybo said about the D2. It's the best speaker, "pound for pound", I've heard from ProAc in some time.