Anyone upgrade a power cord on their TT?

highEndguy said:
Belts absorb the micro vibrations and from there goes to the platter and so on.
Bad dirty current combined with the noise any motor produce, obligatory makes unwanted
Vibrations that goes to the pulley that drives the belt and so on.

But is my theory is not a fact
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Yes, absolutely. If you have a rubber belt, like a VPI, just gently hold your finger on the belt where it comes off the motor flywheel before going to the platter. You will most likely feel some little vibrations. Those are transferred to the platter, for sure.

2 fixes for this:
- get something heavy and smooth and rounded (like a small brass puck) and place it against the belt where you just touched it. But only just touching a wee bit.
- replace the rubber belt with a silk string, or mylar tape. You will likely need to have a speed controller to do this effectively (especially if your motor pulley is a V type.
 
highEndguy said:
Belts absorb the micro vibrations and from there goes to the platter and so on.
Bad dirty current combined with the noise any motor produce, obligatory makes unwanted
Vibrations that goes to the pulley that drives the belt and so on.

But is my theory is not a fact
Click to expand...

But does "bad, dirty current" produce vibrations? Noise I can see, but vibrations? Hmmm.... I get the issues with vibrations and turntables but I think that would be solved with isolation devices not power cords.
 
I noticed a huge improvement, to me, when I upgraded my PC from my Classic 3 to my SDS. My wife did also and she had no idea what I was doing. I have no idea why.
 
BobM said:
Yes, absolutely. If you have a rubber belt, like a VPI, just gently hold your finger on the belt where it comes off the motor flywheel before going to the platter. You will most likely feel some little vibrations. Those are transferred to the platter, for sure.

(especially if your motor pulley is a V type.
Click to expand...

May have an effect on a light platter, and I repeat may, don't think that would be of any significance for a heavier platter considering momentum once at speed. Rubber is there to absorb micro vibration IMHO.
 
All I can say is ... try it for yourself. We all know that theory sometimes has no relationship to reality in this hobby.
 
Nelson,
I respectfully disagree also. Those micro vibrations would be so small that there are about a dozen other things to address before that. Plinth, arm damping, total isolation....

On a belt drive, you won't get oscillations. On a DD drive, if it has speed control it will either 1) Be off on speed 2) if quartz locked, have to compensate by auto adjusting.

On a side note, the HALL motors used in later Duals (721) has a tendency to wander due to voltage variations (a very small percentage) but that was due to voltage variance, not noise.
 
BobM said:
All I can say is ... try it for yourself. We all know that theory sometimes has no relationship to reality in this hobby.
Click to expand...

Ran the silent groove on the Analog Production Test LP and can't hear any noise at levels way beyond my listening levels except for faint tape hiss. I do use a motor controller and Minus K isolation base on my turntable so noise levels and wow and flutter are imperceptible if any.
 
Since so much of the Shunyata theory is related to reducing the noise in the circuit, both from the wall to the component, and from the component back into the circuit, I would expect that you might get some decrease in overall noise putting a zitron cable to your TT motor. An actual rotating motor is probably a high source of electrical noise. Every time I added another Shunyata Zitron cable to my system it got better. As I upgrade cables to Anaconda or Python, one day I expect one of my Cobra cables will find its way to the TT. Ending up "whole loom," as I've heard it said, is my ultimate goal with power cords.

Now, with the custom built motor on the AMG, or some other tables, that noise may be less, but the goal of the motor design is probably more related to speed stability and low physical vibrations... leaving potential circuit noise.

My thoughts only.
 
I would never say don't try something, We all experiment. And stranger things have happened (hey - I made a phono stage sound better by running it off 12vdc instead of the wall wart) but just want you guys to think it through.

Why do Shunta cables work ? Because they eliminate noise that powers a circuit that ties into a signal path. Power to circuit to signal path. If that power voltage is dirty it can make it past into the signal path (this is what filter caps and such are for).

Now on a turntable, there is no connection into the audio signal and the vibratory energy of the current is so small that it can't travel across the plinth. Nor will it cause the motor to create signal noise. If the motor is properly isolated and the vibratory energy stays at 10hz (sweet spot). In fact, some vibratory energy is normal and needs to exit (much like a ground) so a totally inert table would in fact not sound as good as one with some give (thus the builds on suspended platforms). 10Hz is the usual "target" resonance frequency, going up to 12Hz or down to 8Hz is generally considered to be the acceptable limits.

But back to cable noise. It just isn't there. Cleaning it will have no ill effects (except your wallet) and not cleaning it will be the same.

But again, is you don't mind spending and want a great power cord, go for it. I just wanted to explain the difference.

On another note, I am looking to get a Audioquest labs power cable for my power amp. I can buy this
Amazon.com : AudioQuest NRG-X3 6ft US Power Cable : Electronics Power Cables : Electronics

Approx $100

for $102 I can build this
DIY Belden 83803 Mains Power Cable - Audiophile Power Cord

Do you think I should save myself some hassle and go with the Audioquest...? I would love JPS but my wallet is not that deep...LOL
 
I swear I'm not trolling guys, I'm super busy this weekend and haven't had the time to really post my thought, my first thoughts were along the lines of what Rob is saying then my glimmer of hope was along what Nelson was saying, thanks for all the input and I'll get back to you guys ASAP, right now Cape Town international tattoo convention is waiting for me, gotta run!
 
Jeremy !!1 I didn't see you come in...welcome ! And also, always welcome to try things. I am not saying its impossible...just fairly improbable to make any discernable difference...BUT if it does, tell me so I can order a cable..LOL
 
RedSectorA said:
Ran the silent groove on the Analog Production Test LP and can't hear any noise at levels way beyond my listening levels except for faint tape hiss. I do use a motor controller and Minus K isolation base on my turntable so noise levels and wow and flutter are imperceptible if any.
Click to expand...

Someone whose ears I trust once told me that the easiest way to hear the difference from using a power or speed conditioner on a TT motor was to play some slow piano music, and listen to long sustained tones. He said he could easily pick up instability in the chord or note.

I can't think of any records I have that contain long sustained piano tones, so I can't say if this works for sure, or not.
 
BobM said:
Someone whose ears I trust once told me that the easiest way to hear the difference from using a power or speed conditioner on a TT motor was to play some slow piano music, and listen to long sustained tones. He said he could easily pick up instability in the chord or note.

I can't think of any records I have that contain long sustained piano tones, so I can't say if this works for sure, or not.
Click to expand...

Bill Evans or Shirley Horn come to mind, you are indeed right that you can easily hear wow and flutter in a piano. Opera voice is another way to hear w@f.
 
Yes..a piano is good because you are listening for flutter in the note and especially in the decay. sustained notes from a piano should have a linear decay...dummmmmmmmmmmmmm..gradually fading down....but if you hear dummmMMMmmmmMMMmmm..in other words up and down, you have flutter
 
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