VintageFlanker
100+ Head-Fier
From specs alone, it seems the amp in the r2r-11 outputs more power than the x7s, but i may be wrong, never really been into the amp game.
EDIT: NM, didn't realize 1 RZ = more than 1 ohm. Actually now I don't know haha. Anyone care to enlighten.
I owned both. The R2R-11 is way more powerful. (mid-gain on X7S vs Low gain on R2R11)