Damon's P3-24 motor speed problem .......

Damon of Taiwan first wrote to me :

"Hi Michael,

I have a Rega P-3/24 tt bought from Europe. The tt uses 220v , 50 hz, but it is 110v 60hz in my home town....".

Clearly, Damon's TT would not function with correct speed in his home town!

This is the problem you face if you happen to purchase a TT from another region of different power supply and frequency. Even if you have a voltage converter, the TT speed would be completely out as the speed of ac synchronous motor is dependent on the frequency of the power supply (read my earlier post of TT speed problem..)

Quite a number of people had come to me with similar problem before. So I recommended him to change his 50Hz pulley to a 60Hz pulley...

After consideration, Damon not only took the 60Hz dual pulley, but also silicone belt, aluminium sub-platter and rubber cork mat for his first upgrade. A very good start to tweak his P3-24.

Damon is happy and addicted to his p3-24 every single day now, he says ....


It was done last week, so easily to set up by the clear instruction. But I'm so busy recently,have not enough time to arrange the final set and some processing pics. Only one fun pic for replace pulley first. 

The result is absolute amazing I am addicted to my lovely p3/24 every single day! 

Thanks a lot.


Thanks Damon!

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Eric of Canada first wrote to me, " I have a xpression III with the rumble problem.  I still hear it with the Henley sorbathane upgrade kit.  It seems the only solution is to separate the motor from the table or buy a new turntable.  The question is will your solution fit my turntable?  I have no problem cutting into it if need be."

The Xpression III motor motor mounting dimension is the same as that of Rega TT, so my motor isolation could be used to separate the motor from the plinth, I told him. In fact I had done that on my own Pro-ject TT ( different model) too.

Eric gladly started off with the project .....

"Took very little time.  No vibration can be felt when motor is touched.... " Eric commented after adding the motor isolation base.
He has posted his experience in vinylengine too

A good looking heavy chunk of metal basically separates the motor from the table. The table needed minimal modding with a Dremel. All the screws provided were too long, luckily I had some kicking around that fit. The motor base needed taller rubber feet as the cork feet provided were too short. 

The mod seems to work well. I have a motor that vibrates badly so I do hear something when the needle lands but only through headphones when turned up. 

Music seems punchier and cleaner than with the Henley solution, then again it could be my mood today.

Read more from vinylengine........

Thanks Eric!

Feedback from Arthur of California who also uses motor isolation base for his Pro-ject 2.9 wood:

The isolation base does make a big difference, I don't hear the motor since it is well isolated from the plinth. Thanks again Michael for the invention. I now enjoy listening to my table more than listening to CD's."

Ronald Bonner of Dallas gave his comments on motor isolation base upgrade for his Pro-ject Debut Carbon:

Got it and installed it. Did exactly what I was wishing it would do and more. Thank you so very much....

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Endrik from Philippines has done several upgrades to his Rega P3-24 TT :
1. Aluminium sub-platter, dual pulley and silicone belts, click to read more .....
2. Top, bottom bracing and aluminium feet, click to read more  ......

This could be his last tweak ... underslung counterweight and motor base upgrades ...


Note : He has posted more details in Lenco Heaven. Click to  read more .....

*Proceeded on installing the counterweight first, removed the stock metal stub* 

*Installing the motor isolation support*

*Making sure that the dual pulley is on the center of the hole and that the top portion of the motor is at least 2mm below the plinth*


It definitely sounds much better and the improvement after playing a record is immediate. This is my LAST TWEAK since I think I have wrung every bit of potential from my Rega and now it's time to just enjoy the music!  


Thanks Endrik!

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