What you posted sounds like a quotation of Dynaco's old advertising hype as presented on Greg Dunn's Dynaco speaker site. It's a good site, and a great place to start researching Dynacos. I've had all three speakers here, and in my experience, the A-35 sounds a tiny bit more relaxed than the A-25, with maybe a touch deeper bass, but their sonic character is very similar. The AR-2ax is a "fuller" sounding speaker, with probably the deepest bass, and a slightly "rounder" more liquid sound. I'd say your characterization is right: the AR-2ax's bass is deeper than that of the Dynaco A-25, while the A-25's bass is a touch tighter. But I'd say the AR's is also a little deeper (and a touch less tight) relative to the A-35 as well. Here's a review I wrote of the AR-2ax where I compare it to the A-25. I wrote it a few years ago, but I still think it's accurate. I could live with any of the three: Dynaco A-25s, A-35s, or AR-2axs. Hope this helps!