While we have not yet had the opportunity to check the sample TD-I50AB sent to The Stereophile, there is little doubt but that the tonearm on this unit was seriously damaged in transit or has a serious manufacturing defect. The 5°tilt in the head shell and the ½-gram vertical friction are completely beyond the design and quality control limits established by Thorens.
The speed accuracy tolerances of this unit are ±1% of the nominal speed, which corresponds to 1/6 of a semitone. On early units the speed was at the upper limit of these tolerances, and slight…