Sirspeedy, I don't think its been mentioned before, but the bearings in the Tri-Planar are a special super-polished super-hardened variety that have to be special ordered. Here in the US Tri tells me that there is only one manufacturer left who can even build them.
Calibrating the arm (setting the bearings) takes him several hours for each arm. In the end the wiring is by far the more important issue, not the bearings- something that is in common with the Phantom. IOW, the bearing type has no 'bearing' (heh heh) on the matter insofar as friction is concerned. I just had to say that :)
How the bearings *do* help is in maintaining absolute azimuth- especially important with record warp, extreme bass passages and if the table is not perfectly level. Azimuth is adjusted by a worm screw adjustment at the bearing end of the arm wand, so you can get it exact at all times.
Calibrating the arm (setting the bearings) takes him several hours for each arm. In the end the wiring is by far the more important issue, not the bearings- something that is in common with the Phantom. IOW, the bearing type has no 'bearing' (heh heh) on the matter insofar as friction is concerned. I just had to say that :)
How the bearings *do* help is in maintaining absolute azimuth- especially important with record warp, extreme bass passages and if the table is not perfectly level. Azimuth is adjusted by a worm screw adjustment at the bearing end of the arm wand, so you can get it exact at all times.