>>The cover also presses against the tonearm when the clamp is not in place.<<
What kind of tonearm is this?
Get a KAB strobe kit to check rotational accuracy.
What kind of tonearm is this?
Get a KAB strobe kit to check rotational accuracy.
VPI HW19 Mk IV platter upgrade, speed variations?
Hello,
I recently purchased an upgraded HW19 Mk IV with a VPI upgraded platter. The upgraded platter is so thick that it keeps the dustcover from closing when the record clamp is on. The cover also presses against the tonearm when the clamp is not in place. I have an overhang above my turntable, so leaving the dust cover open is not an option.
In lieu of buying a taller cover, I have reinstalled the old platter, which was included. Aesthetically, it's much improved, and the cover is functional again.
However it seems as though I detect some platter speed variation with the original platter.
I wonder several things:
- First, I'm not sure the variations are real - I'm just beginning to get back into vinyl after a 15-year haitus. So, my ear and my benchmarks may be off. I would think the VPI would be good enough that speed fluctuations would be nearly inaudible???
- Would the significantly greater mass of the upgraded turntable smooth out platter speed variations, to the extent that they're audible?
- Might there be a problem with either the belt or motor, due to wear/age, and this is the root problem that the previous owner tried to overcome w/ the upgrade?
- How does one measure platter speed variation, to be sure?
- I'd like to just sell the upgraded platter and bearing, since this solves my dustcover problem, but not if the upgrade gives a real and significant improvement.
Any thoughts/observations/guidance would be appreciated.
I recently purchased an upgraded HW19 Mk IV with a VPI upgraded platter. The upgraded platter is so thick that it keeps the dustcover from closing when the record clamp is on. The cover also presses against the tonearm when the clamp is not in place. I have an overhang above my turntable, so leaving the dust cover open is not an option.
In lieu of buying a taller cover, I have reinstalled the old platter, which was included. Aesthetically, it's much improved, and the cover is functional again.
However it seems as though I detect some platter speed variation with the original platter.
I wonder several things:
- First, I'm not sure the variations are real - I'm just beginning to get back into vinyl after a 15-year haitus. So, my ear and my benchmarks may be off. I would think the VPI would be good enough that speed fluctuations would be nearly inaudible???
- Would the significantly greater mass of the upgraded turntable smooth out platter speed variations, to the extent that they're audible?
- Might there be a problem with either the belt or motor, due to wear/age, and this is the root problem that the previous owner tried to overcome w/ the upgrade?
- How does one measure platter speed variation, to be sure?
- I'd like to just sell the upgraded platter and bearing, since this solves my dustcover problem, but not if the upgrade gives a real and significant improvement.
Any thoughts/observations/guidance would be appreciated.