It's not immediately apparent but the shape of the arm is reminiscent of a F-35 fighter The upper half of the arm is round while the bottom half is v-shaped and the very bottom is flat. Of course the arm is also tapered to the headshell. There are also no junctions as the arm is one piece from the headshell to the counterweight support. The fingerlift is the best and most ergonomically functional that I've run across. More to come.
The arm is unfortunately, not just a drop in and play. The new Unipivot bearing (without a damping trough "circle" and arm rest must be switched out. The latter is easy; the former takes a little grip strength
According to HW, the noise floor on the new arm is vanishingly low compared to metal arms. We'll see. Low weight, low compliance cartridges may need an additional counterweight that HW recommends getting from Soundsmith audio. Also HW recommends using Soundsmith's EZ mount in part because he feels the brass headshell screws damp the cartridge better than the Al or stainless steel commonly used; two, it's hard to overtighten the nuts and crack the headshell using the EZ mount; and three, the user can adjust the mass to the headshell by using the appropriate mass screw.
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