I tried the SDS with my Spacedeck and realized no improvement whatsover.
Oz
Oz
Using the VPI SDS with non-VPI turntables
Dave, the issue should be just a matter of whether the motor in your Lenco is an AC motor. If it is, then the SDS is compatible. In casting about some of the Lenco web sites I found the following comment talking about the motor in the Lenco turntables: "...A common method used by many turntable manufacturers for ensuring reliable starting and direction of rotation in AC Induction motors." http://www.freewebs.com/bornin50-2/themotor.htm So, it sounds like yours should be an AC motor. . |
The SDS regenerates the power sine wave, so the power is cleaner and the sine wave frequency is what you set it to be. The capability of varying the frequency of the sine wave is important to determining the speed of "hysteresis-synchronous motors," like those used in most turntables today. "Induction motors" are relatively insensitive to frequency variation and will tolerate a fairly wide range of frequency variance from their nominal rating at 60 cycles. A better way to vary the speed of an induction motor would be to change the voltage, which the SDS also does. Naturally, the turntable could sound better just from the improvement in how much cleaner the power sine wave could be. |