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Mr Thorens

Technics SP10 Appreciation Thread

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Also monitor ebay uk there are many good ones from there if the seller is willing to ship

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Dear friends I am seeing some very nice plinths in the photos. At the moment mine is what came from the radio station and the TT sounds great however your plinths look nicer. It would be interesting to know how you obtained your plinths. Did you make them or buy them from somewhere?

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This is the Mk3 updated by Artisonfidelity.  Their gear looks great. 

 

 

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Bought my SP10 mk2 off a SNAer for ~ $750 (actually on eBay) as the TT unit and PSU only. Serviced, resprayed black and plinth built by the late Duc. Also sports one of his Univector tonearms with a Soundsmith MIMC cart. Since I've had this, the LP12/Lingo1/Ekos/Klyde next door hasn't had a look in. Sounds thick and cloudy compared to the SP10. All through the same phono stage (Goldnote PH10). Probably all up cost 3.5k for TT/Arm and so for the price of a Rega RP8, I think i've probably got a better TT. YMMV

 

 

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not a fan of the heavy duty, overkill approach to plinths, albeit i like your square plinth a  lot more than artisan's mr blobby.

😉

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My plinth at the moment is just a heavy box type made of 12mm laminated particle board, I obtained a major improvement in focus and bass control by adding in anti vibration material - just used the Jaycar version of dynamat and works a treat. Added in a new 1877 phono tonearm cable obtained from a SNA member to the Ortofon AS212 tonearm and the deck sounds amazing. 

Edited by Mr Thorens

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I got 2 SP10 mk2. 

 

One originally used in Brisbane radio station with sme 3012R tonearm. And also with build-in MM phono stage. 

 

The second unit from japan. With SAEC WE308sx & Fedilty Research FR64s. 

 

Planning to re-condition my sme 3012r, anyone here know who can upgrade turntable? 

DSC_4338.JPG

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Another follower....., Technics SP10 that is. For me the timing and attack are simply jaw dropping.

 

7AA07CAE-16AE-4438-9A8D-1CDE2FD0D0C6.thumb.jpeg.755973d00d4f3feedbb187193056bbaf.jpeg28025EC4-9728-4A86-9B73-CDE4718A2624.thumb.jpeg.eea5026b6388139b7c6fe5b3ed1d118b.jpeg7D9AAD35-5A21-45EA-BFE2-36872044FE59.thumb.jpeg.0a4f52daa7077137f7eda9751ea283e8.jpeg  

Edited by Chanh

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2 hours ago, Owen Y said:

Progress has been slow, but I have an SP-10 plinth build underway presently.....

 

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Cheers, Owen

Dark Lantern blog - http://darklanternforowen.wordpress.com/

Makes fascinating reading especially the concept of additional internal damping and that you are using light not heavy material for top plinth to avoid loss of microdynamic musicality. 

Edited by Mr Thorens

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5 hours ago, Mr Thorens said:

Makes fascinating reading especially the concept of additional internal damping and that you are using light not heavy material for top plinth to avoid loss of microdynamic musicality. 

Hi @Mr Thorens - mass is useful to 'help anchor' the significant rotational torque of these DD TTs, but IME, we don't want it near the stylus/record interface. As this tends to rob the sound of its low level detail, harmonic info, harmonic decay, etc - things which are not the SP-10's strong suits anyway I hear (IMHO, YMMV of course ;) ).

 

This plinth will employ a 9kg stainless steel bott plate, to provide the requisite mass, but a low C of G & also to house an Albert Porter style 'noise sink' at the main bearing.

 

A mock-up with 12" & 10" tonearms....

IMG_0150.thumb.jpg.bc21982578a7c45f96d967aec92d1f01.jpg

 

Cheers, Owen

Dark Lantern blog - http://darklanternforowen.wordpress.com/

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Thanks @Owen Y  that changes the design thoughts I had about improving my plinth. I've actually had that experience before. Once had a Lenco L71 which sounded dynamic and detailed on a box plinth and then I got a Moldova 10kg plinth and bolted it tightly only to find that it deadened the sound and robbed dynamics and air. At the moment my SP10ii is on a box plinth that came from the radio station. Dampening the sides with Dynamat (Jaycar version) made a big difference to reducing resonance and enhancing image but dampening the top flattened the sound. So I will now consider adding mass to the bottom rather than the top. 

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Edited by Mr Thorens

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@Mr Thorens - thanks, that's useful info for me, hearing independent experience - I'm encouraged.

 

There are many structural details of the SP-10 MkII itself too, that can be improved, tweaked, I feel - but you don't want to 'throw baby out with bath water', so to speak.

 

Cheers, Owen

Dark Lantern blog - http://darklanternforowen.wordpress.com/

Edited by Owen Y

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PS. @Mr Thorens - your SP-10 looks mint 👍

 

@Chanh - so does yours.

If your record clamp-weight is v heavy, I would consider using a grip-type clamp (like the Goldmund type). The SP-10 bearing shaft is tipped with a plastic thrust plate, resting upon a small (~7mm dia) round steel ball. The latter eventually wears an indentation into the thrust pad. The SP-10 platter of course, itself weighs 2.9kg, but if your clamp weight is significant.... just a thought

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Cheers, Owen

Dark Lantern blog - http://darklanternforowen.wordpress.com/

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Just playing Dave Grusin Sheffield Lab today for the first time on the SP10ii. Best I've ever heard it especially the width and depth, level of detail and total tonal control, transients and micro dynamics have speed and the bass has slam. Strings have real texture. Just sounds real. I've heard this as a test disc on several other TTs over the years including Thorens TD321, Technics SL120, and a heavy expensive Acoustic Solid deck. The SP10ii is clearly a winner.  It's also quieter than I remember any of the above with a level of blackness and acoustic space. 

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I'm a long time SP10 (and DD in general) fan. I have 3 of them and at least 2 others in parts. Originally I bought a dozen from a radio station and sold most of them.

Before I moved back down here my player had an Albert Porter inspired plinth that was exceptionally heavy. It was a ply laminate and there were lots of large cavities internally; these were sealed with resin then filled with 'goop', a mineral oil, sand and lead shot combination. It had 2 arms, a Townhend Excaliber (with trough) and an SME310. I'd planned to add another, but it (plinth) was sold before I moved. On my to do list is to build a replacement with the original 2 arms and the newly acquired SME111. Speakers need to be finished first though.

 

I left belt drives after I bought a Gyro and my missus complained bout the pitch instability. She could hear it clear as a bell on sustained notes. Perfect pitch is a mongrel to live with I suppose.

 

I still have the Gyro, Rock, 401 and a few Denon DDs.

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On 15/04/2019 at 10:57 AM, Chanh said:

Another follower....., Technics SP10 that is. For me the timing and attack are simply jaw dropping.

 

7AA07CAE-16AE-4438-9A8D-1CDE2FD0D0C6.thumb.jpeg.755973d00d4f3feedbb187193056bbaf.jpeg28025EC4-9728-4A86-9B73-CDE4718A2624.thumb.jpeg.eea5026b6388139b7c6fe5b3ed1d118b.jpeg7D9AAD35-5A21-45EA-BFE2-36872044FE59.thumb.jpeg.0a4f52daa7077137f7eda9751ea283e8.jpeg  

Awesome set-up Chanh! :thumb: No doubt the exquisite Kuzma 4 Point tonearm and Accuphase AC3 MC cartridge is making a strong contribution to the sound of your turntable.

 

Cheers,

 

Steve.

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On 22/03/2019 at 9:01 AM, aussievintage said:

Love the simplicity of the table  AND that tone arm.  What type is it?

It's a Wheaton Triplanar tonearm.  

 

Here's the link for the latest versions, https://www.triplanar.com/tonearm.html  

 

I can only imagine just how good they are!  🙄

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SOMETHING DIFFERENT:

This project started in 2008 and originally this something different was my prototype but I was/am so pleased eventually ended up as my final in 2009. I visually copied the original plinth of the SP10 and I designed and made the rest of the plinth.

The basic of the arm is the TRANS-Fi Terminator but I have completely redesigned and remanufacture to suit the SP10 plinth and improvised to ease of setting up and normal usage. The only bit I retained from the original is the horizontal sliding bar. IMV many users found linear track is not as good as compared to the normal arms and I can comprehend being a mechanical designer. I have also redesigned and made many arm wands (terminator) over the years. This allows me to have as many cartridges as I can afford and the original TRANS-Fi intelligent concept facilitates arm wand changes (with the cartridge already attached prior) in less than 5 minutes, jokes aside. The azimuth can be pre-set and is a matter of keeping a record for the VTA to be very easily adjusted via the digital calliper to within 0.01mm.

The SP10 have been fully re-capped and some mechanical modifications.

I used to have access to super precision 5 axis CNC machining centres and the above was a breeze to achieve.

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Hi Owen,

Yes I did saw that link years after my creation of the mounting base. Whether you notice the arm mounting screw still rely on a single screw. Most with some mechanical engineering experiences will know when one tightens a screw it is unavoidable that the piece the screw is supposed to hold will move minutely. That minute movement is enough to cause the Terminator to move/rotate upon that one screw whilst being tightens.

 As I was (retired) a mechanical designer besides other precision professional experiences I thought out of a concept that enables me to fine tune the whole Terminator forward or backward and radially as close to the theoretical line/track of the stylus movement from the outer track tangential point towards the centre of the TT spindle. Now I am talking about stylus moving from first track to the last track of the record within less than 0.05 mm conservatively. That is within less than 0.05 mm to the recording cutting head of the lathe. As we are aiming for the stylus to travel from the tangential point at the first track to the centre of the TT spindle close to perfect as anything less defeat the purpose of linear tracking otherwise conventional arms would (IMO) be a better compromise in performance and setting up.

My creation allows me to just place the whole Terminator on the plinth and tighten four screws that whole the arm base onto the plinth. I then adjust radially and slide forward or backward over the line of the HFN template without the frustration of try and error that I experienced prior to my creation unless a “close enough is good enough” attitude is adopted.

I am very happy with this set up but in some occasion I find it too accurate for some recordings and my other two TT with normal radial arms manage to camouflage the defects. In general I use the SP10 with the Terminator as often as those other two TT.

Cheers,

Keng.

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Hi Owen,

One other important point I like to mention is IMO geometrically a slight tracking set up error in a normal radial arm may result some compromises in part of the tracking and usually the first and/or last track is close to acceptable. With the tracking error of a Linear Track arm is a different story altogether. It’s either gradually getting bad all the way from first track to the last or gradually getting worse from the last track.

Cheers,

Keng.

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Thanks @kwtools - our Terminator arm base was originally developed on & intended for the TransFi Salvation TT (single hole fixing, slate base)

Yes but good point re structural stability (my son, who did the machining, is a Mech Eng & I deal with structural building work daily in my real job ;).. So we're on the same page here. One of the reasons too why we 'pocketed' the underside.

 

Actually IMHO, the main sonic advantage of linear trackers, is not more accurate tracking but elimination of the need for anti-skating, no bias side-forces - you can hear that in the hugely improved tracking stability, dynamic / pitch stabilty. 

 

BTW IMHO again the main drawback in the Terminator design is the short arm-wand - greater variation in stylus VTA with record thickness, is obvious & a nuisance.

 

(Sorry, don't mean to digress this thread from the orig topic - back to normal (SP-10) transmission now ;) )

 

Cheers, Owen

Dark Lantern blog - http://darklanternforowen.wordpress.com/

 

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