SP10 MkII + EPA100

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Excellent build Bhaskar da. Must be sounding superb! eager to visit your place on any weekend.

Glad to know as our earlier conversation on SP 10 were helpful. I am at rudimentary level and learning so much from this wonderful forum. I am really happy to see as this is a crown to my city based sound mentor i.e. Bhaskar da.
 
bhaskarcan said:
Very difficult to answer. I can only say it's different. The first thing that comes in mind is that it's dead silent against 301's barely audible rumble. Other wise two very different but beautiful sound signatures.

Regards
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I have noticed a clear 3 dimensional image on my SP 25 with Audio Technica AT 1501 Tone arm and I am sure Bhaskar may also have similar experience in due course of time on an SP-10. The 301 will have a little rumble in a really sensitive listening room unless one gets a 301 modified by Shindo or similar professionals. But the timing and forward image reproduced by 301 can easily compensate the hardly inaudible rumble.
 
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Let me pose a radical question for debate's sake, some pundits believe that multi-layered plinths are not really required for Technics SP10, 15 and 25 series. Even the original Technics stock plinth for the SP10, 15 and 25 did not have many layers. The decks use fully enclosed housing anyways. Any thoughts or have you noticed improvement with the multi-layered plinth?

Asking as a friend of mine was looking at mounting a SP25 on a 2 inch thick board and was dead against multi-layered plinths
 
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In my opinion an SP10 does not require a multi-layer plinth. There is no decoupling required. Also there is no rumble energy to dissipate. It just needs a rigid plinth. Nothing wrong in using a multi-layer plinth though, just that it may be a overkill.
 
reubensm said:
Let me pose a radical question for debate's sake, some pundits believe that multi-layered plinths are not really required for Technics SP10, 15 and 25 series. Even the original Technics stock plinth for the SP10, 15 and 25 did not have many layers. The decks use fully enclosed housing anyways. Any thoughts or have you noticed improvement with the multi-layered plinth?

Asking as a friend of mine was looking at mounting a SP25 on a 2 inch thick board and was dead against multi-layered plinths
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Rueben,
You have asked a very important question. I believe a plinth different from the original plinth directly coupled with the SP 25 is supposed to bring out the best from it. I am trying to find out more about the best medium for it and how to direct couple it. It will be one of my next big projects. I understand Monarch is using Technics SL 1210 machine {same as SP 25 } for it's new DD design. Whether multi-layered plinth is ideal for this I am not sure. But I believe the original plinth supplied by Technics is not the the best and I am sure it can be improved. The big question is to know which is the best.
 
kuruvilajacob said:
Rueben,
You have asked a very important question. I believe a plinth different from the original plinth directly coupled with the SP 25 is supposed to bring out the best from it. I am trying to find out more about the best medium for it and how to direct couple it. It will be one of my next big projects. I understand Monarch is using Technics SL 1210 machine {same as SP 25 } for it's new DD design. Whether multi-layered plinth is ideal for this I am not sure. But I believe the original plinth supplied by Technics is not the the best and I am sure it can be improved. The big question is to know which is the best.
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Yes, interesting debate. I placed my SL3200 on 3 huge concrete blocks (yes the ones I got to use as tonearm pods) but did not find any difference. I am not familiar with the SP10 and SP15 but my friend's SP25 has a solid enclosure which technically is kind of like a pseudo plinth (if you may call it so)

Here is a stock pic of the under side of the chassis:

458607-technics_sp25_2speed_studio_turntable.jpg
 
Like everything in our hobby, there's nothing ultimate black or white. Mostly everything lies in grey area. Before deciding for the plinth for my TT, I went through hundreds of pages discussion regarding the subject. And again I found same grey area. There are people who strongly recommend heavy plinth for the SP's, on the contrast there are followers of "nude" Sp10 without plinth. But one thing is quite positive that one cannot go wrong with a heavy plinth, it maybe overkill but not wrong. Also our respected Mr. Nelson Pass uses SP10 on a really huge and thick plinth. So I found it to be a safe bet.

The original obsidian plinth for the SP10 is around 12kgs and has 2 separate layers of Wood and Osidian with rubber mat in between.

IMHO, this is an excellent TT and shld sound great anyway you put it. :)

Regards
 
Minimising the resonance is the ultimate aim. It can be done using many different ways . For players like SP 10, the manufacturers would have already taken all precautions to minimise it. The plinth will only help in reducing resonance further. Yes, it should sound good regardless of the plinth.
 
I may be wrong but as I see it, though SP10 being direct drive with low noise figures, the idea of heavy plinth is to dissipate music passing through vinyl-plater-chassis. On some cheap turntable I have listened to song being played loud and clear if stethoscope is placed on the plinth. And if one listens at loud volume the sound from speakers also get replayed by cartridge. Here is small experiment. If you have mobile, play a loud song holding mobile speaker very near to the cartridge or touching anything as close to cartridge as possible. (Take care of the stylus) You will hear it from speaker too. A heavy plinth helps in more than one ways.
Regards.
 
reubensm said:
Is this the case? The SP25 appears to have a larger platter.
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Yes, it is the same machine. I have a friend who uses his Technics SL-1210 for cleaning his records. So, I managed to get the machine including the transformer as a spare for my SP-25 or any other such players.
 
The rumble figures of the SP10 Mark II are in the ballpark of similar direct drives (-73 dB, DIN). SP10a Mark II had much better figures (mid 80s, IIRC).

A heavy plinth "should" help in damping some of that unwanted energy.
 
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