proac sound vs coincident sound

I drive Response 2.5s with 14 watts of SET power and it's a great match. The Proacs mate well with tubes, and will reflect the qualities of whatever you're powering them with.

Read the Stereophile review carefully, and you'll see that the D28s are significantly different from the Response 2.5s--not only the new advanced porting system, but different drivers from different manufacturers. Haven't heard the D28s, but the older speakers are much closer to the, for sake of a better word, "English" school.

Let's remember that we're talking about three different speakers here: the Response 2.5s, the D25s and the D28s. As an owner of the Responses, and in light of the posts above (I haven't heard the 25s or 28s), it's clear to me that the change of drivers has resulted--not surprisingly--in a change of acoustic character. Whether that's a good thing or a bad thing, that's up to your ears to say. But as an owner of older Celestions and older B&Ws, and perhaps a future owner of Harbeths or Spendors, I know where the Responses should be categorized.