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SME Model 20/12 Turntable


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Found it cheaper? Click here. SKU: 4509
Ex VAT: 12500

A wider alternative to the SME Model 20/3 turntable to accomodate a 12" tonearm. Generous part exchanges against your old hi-fi are availablecontact us with a list of your equipment.

Available - Usually ships within 7 days

Condition:Brand new in original retail packaging

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Brand SME

Tech Specs

Speeds ranges: 33.3, 45 + 78 rpm
Dimensions: 520 x 375 x 173.5mm
Packing: Substantial case.
Net weight with PS: 35.5kg (78lb)
Shipping Weight: 45.5kg (100lb)

Product Description

The SME Model 20/12 (available on 0% finance) is a larger and more massive version of the well known 20/2. In contrast to its smaller brother, the Model 20/12 will accept both nine, ten and twelve-inch arms. This offers a performance some 27% better than a nine-inch arm in respect of angular error distortion.

Magnesium Construction

The tonearm and headshell are pressure die-cast in magnesium and are 27g lighter than they would be in aluminium. Probably the stiffest and lightest twelve-inch arms ever made these dual problems are at last addressed and on listening, the benefits of minimal tracking error and harmonic distortion are clearly revealed. A turntable should address the problems of extraneous vibrations. These emanate from numerous sources including air and structural vibration from loudspeakers, groove modulation, stray electrical fields and mechanical imperfections in moving parts.

In the Model 20/12, superb instrument quality machining is allied with fundamental physics. The higher the mass and stiffness of a body the less it will flex and vibrate; the duration of a vibration can be shortened by suitable damping.

Density Matters

Model 20/12 weighs approximately 33.5Kg (73.7lb), significant in relation to its size because it is density that matters. For example, the same weight of metal spread over a large enough area would be aluminium foil! The sub-chassis measures only 20 1/2” (520mm) by 14 3/4” (375mm) but weighs 8.0Kg (17.6lb). Its thickness, 5/8” (16mm) resists flexing at low frequencies whilst high frequency resonance is attenuated by efficient extensional damping.

How does it sound?

Model 20/12 has no `sonic footprint'. The sub-chassis is suspended on forty purpose-moulded ‘O’ rings which ensure freedom from feedback. A large centrally placed fluid-damper disciplines sub-chassis movement with a pleasing sense of security when handling records on and off the platter.

In addition to a cartridge’s electrical output, mirror image acoustic signals reacted in the arm and record, will pass into the sub-chassis in the course of dissipation. However the usual closed loop design does not address the problem of their differing phase so in the Model 20/12 the structural interfaces concerned have received special attention to provide paths of the required impedance.

This control of vibration is fundamental to the design of the player and goes much of the way to explaining the stunning tonal and dynamic neutrality that it exhibits.

Key Features

- Stable four point suspension and trimming screws for suspension adjustment
- Subchassis suspended on 80 strands of rubber in form of 40 purpose moulded ‘O’-rings
- Central fluid damper controls subchassis motion for resistive ground-path acoustics
- For transport lock down screws secure the sub-chassis and seal the damper.
- 19mm diameter main spindle machined from high-chrome steel, runs in a sealed oil bath
- Reflex clamping system minimises record resonance, 
- 6.5Kg machined platter with unique Isodamp face.
- Adjustable ball feet with optional compliant inserts.
- Generous use of extensional damping and resistive loop construction for sonic neutrality
- 4 jacking screws built into sub-platter allow the thrust bearing to be offloaded for transit
- Driven by a 3-phase, 6 pulse, inductance motor, with 8 pole Neodymium magnets.
- Incorporates 4 layer PCB with on-board user adjustable speed variation control
- Large diameter strobe disc supplied allows precise adjustment of standard speeds.

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