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Sumiko Premier MMT

Stereo S-Shaped Tonearm

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Sumiko Premier MMT


The Premier MMT is an S-shaped tonearm manufactured for Sumiko by Jelco in Japan.

The arm features a removable headshell and can be used with or without fluid damping.


Overall length: 305mm

Effective length: 239mm

Overhang: 17.3mm

Offset angle: 23.1 degrees

Mounting distance: 221.7mm

Maximum backswing: 64mm

Cartridge weight range: standard up to 8g, extra weight 8-14g


instruction/owners manual  English

template (not to scale)  English

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Sumiko Premier MMT / MM-T owners manual, service manuals and schematics are for reference only and the Vinyl Engine bears no responsibility for errors or other inaccuracies. The PDF files are provided under strict licence. Reproduction without prior permission or for financial gain is strictly prohibited. This website is not affiliated with or sponsored by Sumiko.


Effective Mass

H. Uchida from Jelco sent the following answers:

> Thank you for your inquiry for MMT tonearm.
> 1) Fluid damping is using 500 cP silicone oil.
> 2) Effective mass is 20 g.

Due to the mass figure the choice of cartridges is greatly reduced to a compliance of around 10 to 12. The fluid damping (500 cP is equivalent to ca. 506 cst or ca. 40 wt) allows for even stiffer carts.

Premier MTT Grado

I have Premier MMT on a rega planar 3.

I have the in most expensive Grado BLACK cartridge Are they compatible?

How do convert dynes / to cu's?

What are cu's ? What are the units.


Premier MTT Grado

Hello, do you have maybe the auxiliary counterweight (in a form of ring) for MMT arm.If you have it, could you give me the dimensions and weight of it. Thanks Adalbertuss