|Port city of Xiamen, China - just across from Taiwan.|
Wrote this up right before I left Canada to go to Asia...
Hello folks, while you're working on the vinyl LP test and as I prepare to go overseas for a few weeks, I thought it might be interesting to post the objective PlatterSpeed results from the Roksan turntable as well as a couple more pictures of the setup...
It is a thing of beauty:
Although there have been updates to the TMS design (I think TMS 3 is the latest, here's a TSM 2 review from 2003), the appearance and general design principles seem to have stayed constant over the years. The build of this device is top notch and smoothness of operation appears excellent. Switching from 33.3rpm to 45rpm is easy with the push of a button up front.
Using the same Adjust+ Test LP to measure as I did previously with the SL-1200, here are the 33.3 rpm charts and calculations as per PlatterSpeed measured off the same iPad:
As you can see, it measures quite well. It's running a little fast with a mean frequency of 3156.5 Hz instead of 3150 over 60 seconds or so. Wow measurements with the DIN IEC 386 plugin is a little higher than the SL-1200, a similar pattern with the raw frequency maximum deviation. But when lowpassed, the maximum deviation was the same as the Technics at +/-0.02%.
Here it is measured at 45 rpm:
Again, it's a bit fast at 45rpm as well. Remember the target "mean frequency" at 45rpm should be 4252.5Hz. There's only a slight increase in the DIN IEC 386 wow measurement and slight increase in the lowpass-filtered result compared to 33rpm demonstrating good stability with the increased table speed.
It'll be fun to see the LP blind test results! Keep the entries coming - you have to end of November :-).
Enjoy the tunes.