That is VERY cool! I wanted the RC-2 as well, but if you look closely at it, there is no Input adjustment (line level) like there is on the RC-20. The "level" knob on the RC-2 is for the loop, not the input. Looks like I'm keeping my RC-20XL. Oh Well.
I just tried the Orange TT at the store. I only tried 7 W setting but the 15 W setting is suposed to give more punch to the low end. However in the 7 W setting it sounded great with gain at 12 o'clock. With full gain it was a bit to grungy for my taste.