Most powerful and popular EL34 tube amp?

I've not heard a better EL34 amp than the Music Reference RM9, which does have a 4 ohm tap.

Looks like RM-9 is a good choice and it is within my budget. I will be looking for it.
Thanks.

Slightly off topic, but with highly efficient speakers (100db or so) where gain isn't a notable issue, what are the sonic differences one could expect to hear between a EL34 amp and a comparable $ 300B set amp? Thanks

I would think you would get better bass and highs compared with a 300B. Though, you might think the 300B midrange is just glorious (not shabby with an EL34). Arguably the EL34 will just be more balanced from highs to lows.

The Antique Sound Lab 1001 (or is it 1003?) 30 watt Class A integrated. And it has something few others have:continousness, where it sounds like the live mike feed from the Met and not like typical, the-string-section's-here-one-minute-and-gone-the-next sound. cj has the same quality in their components (I assume it's that Teflon capacitor that seems to bring everything to life), but I've tried a few others and they sounded "cleaner" but certainly not "alive" as in the Met mike feed on Saturday afternoon. We tried the Cayin integrated and it was cleaner than the ASL, but more like a live performance??? Not what we'd call a close call...
We're not so much for the better bass, better high components anymore. As Jon Valin has written in TAS, many of these have the frequencies right: they just don't make it sound "real" and these days we'd rather have 88.8% of the frequencies and have it sound live-not-Memorex than 100% and just "Memorex."