OK, very interesting results. But first, two caveats: My TT is mounted where footfalls do cause vibrations which are audible, and which will affect the frequency spread that Platterspeed sees. So, I had to make sure that no one was walking to ensure a fair representation of TT-PSU/stock, and one/two belts in play. Second, my motor does run fast, even with the stock power supply.
So with the caveats, the results are:
1) The TT-PSU does narrow the speed "error bars" - rotational speed is maintained more consistently with the TT-PSU
2) Using only one belt is closer to target speed, but is prone to greater variability in speed
3) Using two belts causes the platter to be further away from target speed, but speed is most consistent
Now, if anyone can tell me why the heck my motor runs fast, I'll owe you a virtual beer.
Stock power supply, two belts:
TT-PSU with one belt:
TT-PSU with two belts:
WT Simplex & Audiomods Classic > Aleph Ono, Bel Canto PL1/DAC3 > Pass X1 > X150.5 > DeVore Nines
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