Specialists In Turntables and High Precision Hi-Fi Related Essentials Origin Live Structural Upgrade For Rega Tonearms ( Counterweight Upgrade ) Fits Rega RB250, RB300, RB600, RB700 RB900 and the RB1000. Also fits all Rega variants such as those from Moth etc. Rewiring is known to do wonders for the Rega arms, however the structural upgrade to the above Rega arms and Origin Live OL1 arm is far more significant. The upgrade entails reconstructing the rear end of the rega arm on which the counter weight is attached. This is an extremely critical area, as the counterweight represents by far the highest moving mass in the arm and affects tonearm performance more than can be imagined. The work involves removing the existing rear end stub (which is normally just screwed into the end of the Rega arm - a sonic disaster), and replacing it with a new stub, torqued onto the arm by a thin high tensile bolt. The new stub is designed to present a low contact area with the arm tube. It is therefore semi-decoupled, yet far more rigid than the original.On an unmodified arm, the counterweight must not be rigidly coupled in this way due to the poor vibration characteristics of the standard arm / rear stub joint. This ingenious Origin Live upgrade elevates a good tonearm into the same league as much more expensive arms and at an insignificant outlay.The structural upgrade applies to the RB250, RB300, RB600, RB700, RB900 and the RB1000 although the RB250 is the best arm in the range to have upgraded - in fact an upgraded RB250 will comfortably outperform an upgraded re-wired rega RB300, RB600, or RB900 tonearm The cost of the structural upgrade has been kept well below it’s actual performance value so that it is within reach of those with budget turntables.
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