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.
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