I had considered the Origin Live motor upgrade? for my Linn LP12(I already use the Origin Live modified Rega 250 tonearm with outstanding results). The reason I question this DC motor as being an "upgrade" is for the following reason. While the DC motor may be a bit smoother running, the pitch accuracy may be more difficult to regulate vs that of the A/C synchronous motor. This is of greater importance to me personally than the slightest bit of motor "coloration" caused by the A/C motor. The A/C motor has the advantage of running at the speed of the frequency being fed to it, regardless of it's temperature, but unfortunately the DC motor is subject to pitch changes as temperature, load and other variables beyond one's control. The only chance a DC motor may have is one that is "servo controlled" (but perhaps the servo controlled motor might introduce it's own "colorations" due to the slight pulses caused by constant corrections being made to it's speed).
My suggestion: I simply went with the Basik motor setup on my Cetech'd LP12 and plugged it into the VPI "SDS" Synchronous Drive System. Not only does this work quite well for me, but now I can vary the pitch to the 100th of a Hz frequency, as well as have 45 rpm speed at the touch of a button.
My thoughts
....Paul