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CAT: REVOLUTION RECORDCLAMP
21 Nov 11
Record/spindle damping device
Review: The SRM-Tech Revolution is a record/spindle damping device featuring an integral spirit level. It is manufactured from acrylic and sorbothane, and is designed to effectively damp the record and turntable spindle, without disturbing the balance of suspended sub-chassis turntables.
The Revolution acts in a similar way to a clamp, the sorbothane base grips the spindle and clings to the record label. Unlike a conventional clamp though, it does not exert undue pressure on the record stressing the surface of the vinyl. SRM-Tech call it a soft clamp.
The theory behind damping the record is to absorb or minimise:
1. The vibration picked up by the record acoustically, a good example of this is if you tap the label
2. The vibration transmitted to the record from the motor / main bearing
3. That generated by the stylus itself, when tracing the modulations in the groove.
The ideal is to damp the record without resorting to any method that unduly distorts the surface of the vinyl. The most elegant solution is to use The Revolution, which is preferably in conjunction with SRM-Tech silicone platter mat.
The Revolution also features a 20mm circular spirit level (in the optimum position, the centre of the platter) which will allow you to perfectly level your deck, minimising tracking error, wow and motor/bearing noise. RAM-Tech carried out extensive listening tests during the development of this product and experienced impressive sound quality improvements on every turntable. Improvements you can expect are a quieter, smoother sound with firmer, more tuneful bass. The Revolution also makes vocals more articulate and detailed, as well as reducing surface noise.
The Revolution is 80mm diameter, 22mm high and weighs 78g. It will accept spindles that project up to 11mm above the record label.