Proac Response D30 DS

........and/or contact JohnnyR @ Audio Connection.  We all know about his knowledge regarding Vandersteen, but he knows a thing or two about Proac as well.   Audition, research and ask questions.  Again, good luck on your journey.

@carmenc
Yes my room is definitely too small for the D48 it’s not an option for me at all the bass will be too excessive and the soundstage will be probably out of control.

@milpai
How do you find the bottom end of the D30 ? Is there a big difference between the D30 to the D48 ?

+1 for camenc. 
Johnny Rutan sells the ProAc's and knows just about everything there is to know about them. His Audiogon name is 'audioconnection'.
I would PM him with your questions.
B

Before I purchased my D-30R's I had a chance to listen to the D-20R and the D-48R's. The D-48R is wonderful. My thoughts on the D-48R
is that its plays big and effortlessly.  Its very resolving but still maintains
the musicality that Proac's are know for. Unfortunately their also
bigger than my room could manage. The D-30R's are a big jump
up from the D-20R. They don't quite have the scale of the D-48R but in
smaller rooms they will work better. Bass is well controlled and
resolving with good impact. Mid-range is typical Proac and the top
end with the new ribbon twitter is sublime. Some of the best I've heard
period. Good luck

+1 @cmach 
You perfectly nailed the differences between the D30 and D48.

@itzhak1969,
I remember my demo at AXPONA 2017. I was in the medium sized room and they had just started playing Boz Scaggs "Thanks To You" through a Naim system. The low end was really powerful. This track is used to test the low frequency extension of loudspeakers, and I was amazed at how much bass the D30 produced. I made sure that there were no subwoofers installed. It was kind of overloading the room a bit. But the musicality was amazing. This was the first time I was listening to this track.

Now, the D48 has a "larger scale" as a whole. They will sound bad in your room. I am able to say this because I recently interacted with a audiogoner who installed Spendor D9 in his listening room which was almost your dimension. I have listened to the D7 extensively and can imagine how much bass the D9 can produce. It is almost like the ProAc D30 and D48. Anyways, he loved his previous A6/A5, but was thoroughly disappointed with the D9s. The issue was not the D9, but his room. He eventually went with Devore Fidelity loudspeakers in his room and is very content. He told me that his regret was that he sold the ProAc D30 (previous generation). So even if you had money to buy the ProAc D48 or even the K6/K8, they might not fit your room. Hope this helps.