Originally Posted by
Barry
An interesting arm design. Not unique, Garrard did much the same with their 'Zero 100' arm some forty years ago, which like yours, was based on the even earlier Burne-Jones 'pantograph' geometry.
Having recently spent some time looking at the deviation from tangential tracking by pivoted tonearms, an angular error of +/- 0.008 degree is impressive (compared with a typical angular error of 2 degree of most 9" tonearms, at the outermost edge of a 12" LP). However I wonder if this comes at a cost of rigidity: the cartridge has to have movable, pivoted (and thus non-rigid) coupling to the two arms of the pantograph.