SP10mk2: OMA Graphite plinth vs.Dobbins plinth


According to the price lists they are in one category, but anyone could comment on quality/performance? At the moment i use big Teak Wood plinth (just $750) custom made in Taiwan for my SP10mk2. Looking for upgrade in the future. I use my sp10mk2 with Reed "12 tonearm now. Doest the plinth actually makes a big difference in sound? My stand is well damped with glass, metal and sarbothane in between.

1) Oswald Mill Audio graphite slate plinth (single layer) $2750, double layer looks fantastic but cost $3500

2) Steve Dobbins famous custom plinth cost $2650 including three Stillpoints feet and automotive show quality paint in black or white. Design has changed many times, still hard to find any current plinth picture online.

I know there are Albert Porter's and Artisan Fidelity quality plinth available, but i don't like the design (i mean just how it looks) for SP10.
128x128chakster
Has anyone tried upgrading the power cord of the SP-10 mk2 power supply ? It comes with a thin captive lead. Changing it needs some work. Before I try that I would like to ensure that it really brings an improvement
@pani A reliable audiophile friend of mine installed an IEC inlet in the SP-10 Mk2 PS and tried several high end PCs.  No difference.
That company is USA offering many different solution to clean metal (guns, knifes etc), i think some stuff works well for metal parts of the turntables etc 
Has anyone tried upgrading the power cord of the SP-10 mk2 power supply ?

I did it on the power supplies of my SP 10 but I have to complete the restoration and I do not know yet if the sound could miglorate.

I have not used IEC sockets because I want to keep my power supplies as original as possible, the only cable that is quite compatible with the original power supply hole is the VDH Mainserver; I had to widen the fairlead and work a little for the passage but I did it.

Here

The VDH is deprived of the cladding under the transformer to make the internal cables reach the terminals.
Great info here. I contacted OMA as @chakster  want's to use some of his iron cooking pots for a plinth. They quoted me $10,000 for their new Hypo-eutectic grey iron plinth that weighs 150lbs. Wait for review from Fremer DJ before you buy!
Deal all, please have a look

This a new producs from OMA
Cast Iron plinth for Technics SP-10R  

Link published on https://twitter.com/oswaldsmill 
Anyone can comment about sound properties of the Cast Iron plinth and this material in general ? New video appeared here, watch at 3:55

I am thinking about DIY iron cast plinth for my Victor TT-101.
The OMA is the only company that use Cast Iron for plinth, and this is their next one after graphite plinth.


mmmmmmmmm ... also cast iron now? I'm skeptical about reading all these things.
@best-groove
 I'm skeptical about reading all these things.


Why? What you mean? 
In my opinion Cast Iron looks great, i have no idea is it better than graphite slate or wood, but i know for sure that Cast Iron in Russia is cheap. A friend made this decorative cedar bump for my balcony, it is a replica of the original 1956 missing bump, and it is made of Cast Iron. So i think i can ask him to make a Cast Iron ring for Victor TT-101 or even a small plinth (i hope it is not expensive).   
@chakster You could reach out to Robyn Wyatt in New Jersey Robyatt Audio.
He had one on demo at a NY audio show. It sounded decent.
@chakster    I am skeptical because I do not believe that cast iron is an appropriate material, rather I think it is only a "marketing operation" as I do not believe that a plinth must weigh a great many many and many kg.

I am convinced that we need balance in our choices without necessarily exaggerating on every accessory.
I am sure OMA thought about it, but my first issue with using cast iron for a plinth would be related to the possible effect of a ferrous metal on the function of the motor.  Theoretically, the iron surround could distort the magnetic lines of force around the motor and thereby suck out some torque.  Just something to ask OMA about.
Maybe it is not 100% Cast Iron, i don’t know what is inside. But the Cast Iron plinth for SP-10R is their next plinth after great success of the Pennsylvanian Graphite Slate plinth which i like a lot (visually).

Super heavy weight is not what i’m looking for, but aesthetically OMA plinth are so nice. For the round turntable like Victor TT-101 or Denon DP-80 similar shape of the plinth is nice. For two tonearms it is probably overkill

Actually for TT-101 we only need a small ring to support the drive and a some kind of toneam pod, so it is not as big and heavy as the huge OMA plinth for Technics.

All i know is that Cast Iron is cheap in my area, i’m pretty sure it’s cheaper than wood.

BTW (slightly off topic) : regarding the arm pod i just noticed that one of them has been made from Phenolic Tube, it was mentioned in this review. Anyone familiar with this material ?
They quoted me $10,000 for their new Hypo-eutectic grey iron plinth that weighs 150lbs.

Muhahahahahaaaa nice!! These people are totally crazy; believes that turntable owners who want a plinth are all as rich as Rockefeller.
Those who are rich buy new turntables from the cost of thousands and thousands of dollars without old turntables without plinths.
These people are totally crazy; believes that turntable owners who want a plinth are all as rich as Rockefeller.


At least OMA has taste, many manufacturers in the same segment does not have a taste in my opinion, at least their designers. 

And if you will look at the prices for OMA plinth on the first page then you will see it's no more than others asking for high-end plinth ($2-3k). Still too much for us, but quite OK for many audiophiles. 


In Europe, there is Vinylista from Berlin producing plinths for Technics SP10R, Garrards etc.