ProAc comparison


What are your thoughts on comparing different ProAc models? I’m currently on my 3rd pair.

I started out with the Tablette 2000, which was a superb value for the money, and a wonderfully musical speaker with surprising bass for its size. I kind of regret selling them, because I think they’d be just about the perfect bedroom system speakers. However, I always had these on hardwood floors, so I suspect they could be a bit soft in carpeted rooms.

Then I got a good deal on a pair of Response 2S, which I had been coveting since 1998. The Response 2S had better extension in both directions than the Tablette 2000, and I found them to be considerably brighter, to the point where I actually had to lay down a carpet on top of the hardwood floor of their initial room. But they certainly had all of the musicality of the Tablettes, and seemed to have no sacrifices once the tweeter was tamed. Then I moved into a bigger space. My current living room is 17’ x 17’, and carpeted. The carpet here eats high frequencies for lunch, but the Response 2S proved to be absolutely phenomenal imagers in here. They were throwing images well beyond the walls.

After hearing the Proac Studio 140, and being completely blown-away by it, I found a good deal on the Studio 140 Mk. II, and jumped on it. What I found was a trade-off from the Response 2S. I got an extra 10 Hz of bass extension, which has proved to be deeper than expected. I got better high-frequency extension, as well. The Studio 140 Mk. II are also much more dynamic, and more efficient. I can really feel the music with these speakers in a way that I couldn’t with the Response 2S. But the Response 2S were much better at imaging. They were warmer, had better bass-mid integration, and were much better at presenting vocal textures. The Studio 140 Mk. II are much better with instrumental textures. There’s no clear winner here - it really seems to be a matter of taste. For my part, I’ve decided to stick with the Studio 140 Mk. II for now, as the dynamics, clarity, and rhythmic drive of them work really well for the music I listen to. But I can really see tube lovers going for the Response 2S.

My one mythical lust object in the ProAc lineup remains the Response 2.5. I heard them in the late-’90s, and I have never heard anything else that did such an amazing job with acoustic bass texture. I really wonder how they hold up in the context of a modern system, and how they compare to newer models. I listened to the Response D25 and was not impressed. They sounded sluggish and muddy in comparison, despite the dealer telling me they had been improved.

So what are your experiences comparing different ProAc models? Which ones have really stood out to you, and which do you covet as part of your dream system?
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Enjoyed reading everyone's journey with ProAc.  I'll share the last part of my journey.  I had tried the ProAc C-6, but it didn't meet my expectations for a ProAc.  I then skeptically tried the K-6 thinking there wouldn't be a noticalbe difference between the two.  Was I wrong!  The K-6 was in sound a completely different speaker from the bass up.  Completely and seemlessly coherent/balanced.  Also, I have yet to hear a speaker with a footprint as small as the K-6 that goes as deep, full and controlled in the bottom end.  The seemless transition from the ribbon tweeter to dome mid was noticably better in the K-6 over the C-6.  The soundstage is so wide and deep you can drive a car into it.  Placement and set up was also easier than the C-6's.  Dialed in easily.  My dealer was great.  He advocated for a complete custom pair in Bird's Eye, gray stain, piano gloss and no bullet holes since I don't use grills.  I've had them for three years and have yet to find a better sounding speaker even ones that are over twice the price.
If I remember correctly, the ProAc's I demoed were using Asthetics Atlas.
They were mighty fine.
B
Proac Studio 148 is no longer in production I think , it's not exist at Proac website anymore. It's very sad if it's correct. 
@itzhak1969, you are correct. The studio 148 is discontinued as with its redesigned drivers and same tweeter as the reference line, it mostly likely took away some sales in the reference line. I've heard a more expensive replacement is coming out soon. I actually was in contact with the owner and let know that I would not be a ProAc owner if it was not for the 148 at its price point and performance level. 
Guys
it killed me as well
Stewart promised that it's replacement will mend my brain
best JohnnyR