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SME 312-S

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Magnesium Tonearm The Model 312S precision pick-up arm is an extension of the popular Series 300 range designed with maximising performance and ease of use in mind. It has a detachable magnesium headshell to provide the convenience of rapid cartridge interchange whilst maintaining a degree of rigidity normally only associated with arms of one piece design.

The 12 inch magnesium construction takes advantage of the reduction in Maximum tracking error/distortion afforded by the greater arm length when compared with 9 inch models.

*The 12in pressure die-cast magnesium construction takes advantage of the reduction in maximum tracking error/distortion afforded by the greater arm length when compared with 9in models.

*Unique pressure die-cast magnesium shell detachable and interchangeable without disturbing cartridge or wiring.

*Design of headshell clamping ensures a rigid junction with the tone-arm.

*Internal constrained layer damps minute residual vibrations making tone-arm acoustically inert.

*Stainless steel cross shaft, ground and thread ground. Carried in massive yoke on 10mm precision ball races. Axes at record mean level to minimise warp-wow.

*Unique assembly gives high rigidity and allows bearings to be critically adjusted before the tone-arm is fitted.

*Stainless steel vertical shaft, ground and thread ground, with integral 16mm diameter flange to couple shaft and yoke.

*23mm diameter steel pillar, heat treated, ground and honed, carries two 17mm precision ball races, widely spaced to resist tilt.

*Anti-skate control operates through tension spring and filament. Dial calibrated to correspond with VTF and has positive OFF position.

*Lowering/raising control gives smooth positive action. Height of lift can be adjusted.

*Dual-lock base provides movement control with high rigidity.

*Tungsten-alloy balance weight carried on two-point suspension. Extra-low inertia design assists warp riding.

*Underslung weight housing corrects centre of gravity and provides non-reflective tone-arm termination.

*Swivelling, damped output socket minimises vibration transmission in sub-chassis use.

*Reference lines on tone-arm facilitate VTA setting.

*Fine adjustment of horizontal tracking angle (HTA).

*Alignment protractor designed to provide HTA setting with greater accuracy.

*Cartridge leads and internal wiring in Silver litz.

*Balanced Silver-hybrid audio lead with gold plated phono plugs


A - Distance from pivot to stylus 308.80mm
B - Distance from pivot to turntable centre 295.60mm
C - Cartridge fixing centres 12.70mm
D - Offset Angle 17.28º
E - Linear Offset 91.54mm
F - Overhang 12.60mm
G - Height above mounting surface max. 87.90mmmin. 56.40mm
H - Height of record surface above mounting surface max. 55.90mm min. `24.40mm
J - Depth below mounting surface 56.75mm
K - Radial clearance for balance weight 73.00mm


Effective Mass 14.0g
Cartridge balance range 7.0-19.0g
+ One accessory weight - up to 24.5g
+ Two accessory weight - up to 30.0g
Maximum tracking error 0.009°/mm
Null points:Inner 63.62mm Outer 119.46mm
Internal wiring: Ultra-flexible Silver litz
Audio lead: Length 1.2m
Weight net: 820.0g

100 % Money Back Guarantee !

As with all the products we sell. If your not 110% happy with the products & services you receive from us we will give you a 100% money back guarantee. On not only the price of the product but as well the cost of the shipping. That�s how confident we are in all the products we sell.

Full Ten Year Warranty !

When you purchase any of our new production SME products.

Be it tonearms or turntables we give you a full ten year warranty.

Bumper to bumper !

Short of leaving your turntable in the garden over the winter or using your tonearm as a pry bar to open a can of paint, we will cover what ever goes wrong with your newly purchased SME product.

All we ask is that you retain your original receipt.

We realize and understand that you have made an enormous investment in your analogue playback system & we want to reassure you that we will be there to stand behind it.

The warranty we offer is unmatched and unrivaled in the analogue playback industry.

We here at have been rebuilding, rewiring & restoring SME arms for almost fifteen years now and SME England has been in business building tonearms & turntables for well over fifty years now & counting.

I don't think either of us are going away !

Welcome to our hugely successful SME Trade In & Trade Up Program.

For more than a decade now our SME Trade In & Trade Up Program
has enabled our clients to move to higher level SME arms while getting more
than fair market value for their old SME tone arms.

How it works is simple.

You own an older SME arm and wish to move to a newer more advanced SME arm
or higher up the SME ladder.

Not a problem.

Simply give us a call or send us an email & within a few short minutes
you own a new SME tone arm or turntable at a wonderfully discounted price.

We buy back your well loved SME arm or SME table and you get a brand new in the factory sealed box SME arm or SME table complete with our industry exclusive ten year warranty.

Here are the trade in allowances we will give for your vintage SME tone arms.

SME 3012 Series I – up to $1,500.00
SME 3009 Series I – up to $1,000.00
SME 3012 Series II – up to $1,000.00
SME 3009 Series II – up to $500.00
SME 3009 Series II Improved – up to $500.00
SME 3012-R – up to $1,200.00
SME 3010-R – up to $800.00
SME 3009-R – up to $700.00
SME Series III – up to $500.00

We will also buy your older SME arms outright if you do not wish to trade your vintage SME arm in against a new replacement SME arm.

Simply give us a call at 705-737-6773 or send us off an email through our contact section.

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