0 item(s) in basket
Total:£0.00
Currency Convertor:
Pound Sterling Euros US Dollars Japanese Yen Australian Dollars Hong Kong Dollars Swedish Krona

New Rega RP3 £100 OFF!
Payments
Payments
Like Analogue Seduction? Show it on Facebook!
More offers and great deals in our eBay shop!

SME 20/2A Turntable

more products by SME

Available
Ref. Code: SME/202A

This precision turntable offers a new listening experience from your treasured vinyl

£7,270.00 inc. VAT

No customer reviews yet.*
Average: No customer reviews yet.
(Click here to review this product)

SME 20/2A Turntable
This finely engineered precision turntable offers a new listening experience from your treasured vinyl and 78's. Massive construction, extensional damping of major surfaces and lack of vibration from moving parts ensure tightly controlled detailed sound and stable stereo imaging. The Model 20/2A is equipped with the acclaimed Series V 'the best pick-up arm in the world'.

In an electro-mechanical record replay system a major problem is extraneous vibration. This will come from numerous sources including air and structure borne vibrations from loudspeakers, vibrations caused by groove modulation and those set up by stray electrical fields and mechanical imperfections in the turntable's moving parts. Addressing these problems two simple but important facts influence design. 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.

The Model 20/2 weighs approximately 18,2kg and this is especially significant in relation to its size because in meeting the requirements of mass and stiffness it is density that matters, a point that is often overlooked , because sheer size can be impressive!

The sub-chassis measures only 420mm by 320mm but weighs 6,8kg. Its depth, 9,5mm resists flexing at low frequencies and its high frequency resonance is attenuated by efficient extensional damping. The method of suspending the sub-chassis is particularly important. In conventional turntables metal springs often contribute significantly to colouration. Sometimes even their size and nature can be identified by experienced ear!
 

 



The Model 20/2's suspension has no sonic footprint. It suspends the sub-chassis on 32 purpose moulded 'O'-rings. The method of anchorage allows the rings to be removed or replaced in a matter of moments. Vertical and lateral movements of the suspension are controlled by a large fluid damper.
Sub-chassis decoupling is sufficient to prevent acoustic feedback. Beyond this a degree of coupling is considered necessary, allowing unwanted acoustic energy to be drained away, being partly converted into heat as it passes through the damping fluid before final dissipation in the mass of the base and its supporting structure.

When playing a record two sets of mirror image audio vibrations are reacted, one in the arm and the other in the platter and both will pass into the sub-chassis in the course of dissipation. The usual 'closed loop' construction does not address the problem of their differing phase however so in the Model 20/2 the interfaces of the mounting plinth and bearing assembly with the sub-chassis have received special attention to provide individual paths of the required impedance.

The design aims of the Model 20/2 can be summarised thus:
Elimination of extraneous vibration effects. Orderly control of unwanted signal vibrations. Pitch stability. Freedom from radiated fields. Freedom from critical adjustments and setting up procedures. Long term dependability. An all embracing list? Certainly one to which careful attention should remedy most turntable ills Sub-chassis suspended on sixty-four strands of rubber in the form of thirty-two purpose moulded 'O' rings. Trimming screws for suspension adjustment. Central fluid damper controls sub-chassis motion a offers resistive ground-path for acoustic signals. Two screws lock down the sub~chassis and seal the damper for transport. 19mm diameter main spindle machined from high/chrome steel hardened, ground and super finished.
 
 
 
 
  • Screw down record clamping system minimises record resonance.
  • 4,6kg machined platter with unique lsodamp face.
  • Generous use of extensional damping and resistive loop construction ensure sonic neutrality.
  • Adjustable ball feet with optional compliant inserts.
  • Four jacking screws built into the sub-platter allow the thrust bearing to be off loaded for transit.
  • Electronically commutated 3-phase, high-torque motor. Special design virtually eliminates cogging.
  • Large diameter strobe disc supplied allows precise adjustment of standard speeds.
  • Speed range (rpm): 33 1/3 = 27/40, 45 = 40/50 and 78 = 60/100.
  • Fully shielded in-line control unit. LEDs indicate the main functions.
  • Power consumption - 9 watts.
    • !
     
     
    This product has no reviews added yet.

    Listed above are the reviews for this product as written by other customers. If you would like to add your own review, please complete the form below and click 'Submit'. Please note all fields that have a star ( * ) are required.

    If you would like to tell a friend about this product, please complete the form below and click 'Send'. Please note all fields that have a star ( * ) are required.






    SSL