Micro-Seiki RX-5000 platter question

One of my long term customers passed away and left me his RX-5000.  It hasn't been played in 15 plus years but bearing turns fine, motor runs fine and no audible bearing noise when listening with a stethoscope.  It needs a lot of TLC in terms of the platter having years of grunge on it.  There are two holes and you are supposed to screw the two screws of the supplied handle into it in order to lift the very heavy platter up.  There is almost no clearance between the bottom of the platter and the plinth.  Does anyone know what screws are needed to thred into those holes?  I'm sure they'r emetric but need to get it off to clean thoroughly.  Thanks

128x128Ag insider logo xs@2xhifiguys

Unfortunately it's trial and error, so start with a couple of cheapies to get a feel for what you might like.

This statement is very true, and even the most impressive mat on a certain TT in a certain set up, does not transfer the impression onto another TT in use in the same set up.

Take this mat to another TT in a completely different environment and the idea of replicating the good impression gets even more remote.

I would suggest prior to trialling Platter Mats, the method used as the under TT supporting structure is where the most beneficial discoveries can be made.

When this is correct for the environment the TT is residing in, it is going to be most beneficial to get the best outcome from any follow up investigations of other supporting ancillaries for the TT's usage.

I don't use TT's today that have the type of overall weight of the RX 5000, but when I had the TT in use that was seated in Granite and weighing in at 9 Stone, I found that a few Sub Plinth tiers separated by 'used squash balls cut in half' were able to produce a SQ that was improved over a support that was not with the added tiers.

The good news is that this is reasonably cheap to try out as first investigation.

I have a history of trying Plinth and Sub Plinth Materials and have been through many options for footers. 

Today I use more complex footers on the Sub Plinth Tiers and am becoming quite confident in my suggestion that densified wood is offering one of the best performances I have encountered as a Plinth and Sub Plinth Material.

Recent investigations are showing there is a noticeable change for the better when the latest methods for a sub plinth assembly is used under a CDP as well. 

It is in such a case as this, 'each to their own'. It all depends how early investigations impress, and how far the investigations will take a person. In my case they have not waned, running parallel with my HiFi experiences for over 20 years.

In that time I have lived in three different properties with different exposure levels to the impact of ambient transferral of energies.         

@hifiguys you received some very good advice from dover, as expected. As for the Micro gunmetal platters, they ring when not properly damped, so you do need a mat of some kind. Some might call the sound ‘lively’, but with the ‘naked’ platter the table tends to sound a little bright and unsettled.

Micro advertised at the time that the platter didn’t require a mat, but to my ears this clearly was a misdirection. The CU180 (and the heavier CU500) copper mats were sold as accessories, but really should have been an integral part of the table. In my experience this copper mat is the only one that effectively kills the ringing without killing the dynamics along with it (as most other mats do to some extend). Without it you won’t be able to hear what the RX-5000 can do.

dover is also correct to be very careful with used samples, but thankfully Micro-Seiki.nl offers exact one-on-one replicas that will be perfectly flat. Not cheap either, but these are quality products. Highly recommended!

You can slip some string under the platter to lift it off - use two pieces either side of the spindle.

better 4 pieces of string to form a square

Dear @hifiguys : I reduce/puts at minimum the platter ringing in my 5000 using sorbothane all around the metal surface in the inside and hollow space below the platter and the mat I used was the SOTA mat along the reflex SOTA clamp. Works fine.


Regards and enjoy the MUSIC,