The RR is half the battle. The real benefit is realized when the RR is used in concert with either the Eagle or the Falcon to power the motor. In that case, the RR feeds back to the power supply and holds speed steady as a rock (once equilibrium is achieved). The RR alone only monitors platter speed; it does not autocorrect the speed. If SOTA is going to market the duo, I don't see why you could not use the SOTA product(s) with any 3-phase AC synchronous tt motor.
