hi @roxy54, hope you have been well...
i agree with you that in general about proacs, pretty much all their higher line floorstanders and mini monitors in the response series have very high resolution and cannot be said to be warm in overall nature... more transparent overall, for sure
the couple older models i cited (tablette 2000, and original response 2 standmount-- and to some degree their ’studio' series which was below the response series back in the day) are kind of anomalies in their line... the treble is dialed down and mid range/mid bass are somewhat dialed up, so the particular are warmer in tone overall, much more in the spendor classic camp i would say
there is no doubt modern proacs with the ribbon tweeters - d and k series - and older small response 1sc, floorstanding response 3, 3.5, 3.8 and beyond are certainly not warm - in fact they had an almost electrostatic quality of precision and see-throughness about them
i was a proac fanboy for a long while in the late 80’s, into the early 2000’s, been through most of their models in that period