The best thing about the B710 is the chassis/mechanism. No sliding stamped sheet metal that lets head alignment shift. The deck is cast and machined metal, and the head "carrier" is kind of a Y shape, with the heads on one end, and two precision bearings on the other points, so it smoothly rotates the heads into the tape. 5 motors, iirc, and no belts whatsoever! Takeup, feed, dual capstans, and the head lift. Pretty much a work of art . . . Had to recap once, but that's been it . . . Just sorry that I never found the Studer variant, the A710 . . . same thing, basically, but rack mount and balanced in and out . . . Got mine for a couple hundred each around 2000 . . . now all I see are folks asking more like 3k . . .