I'm a one-month owner of a Backert Rhumba Extreme 1.4 and am thrilled with the improvement in sound. Huge soundstage, more air around, and definition of, instruments and vocals. Punchier base and clearer highs.
Plus, it's fun how each set of 12AU7's I try out has it's own unique sound characteristics!
So, wondering if anyone has made the move up to a Rhythm, and what I might expect in the way of further improvement. It's another 50% in cost, so.......
(Backert offers a one-year upgrade window with 100% trade-in value.)
Also wondering what tubes you may have settled on, or are especially pleased with. I really like the RCA's and Sylvania HP's.
Thanks in advance for sharing your experience.
-Jim