What are the differences between the "badged" RB250, RB251 and RB300, RB301 arms (such as Moth, Michell etc. RB250 or RB300 arms) and the versions that Rega supplies? There is no difference between an rb250 and rb300 arm supplied by Rega and their "badged" OEM equivalents supplied by Rega to other manufacturers such as
What are the physical differences between the rega rb250, rb300, rb600 and rb900? Rega Rear end stub: The most significant difference between the arms is that the RB300, RB600 & RB900 have a stainless steel stub at the rear end where the rega counterweight is mounted. The rear rega stub on the RB250 is
For Rega arm and Origin Live OEM arms The names of the various arms we modify and supplied in the past can sometimes cause confusion. In addition to this reviewers have sometimes used their own terms so we have produced this page is for clarification purposes. The RB250 (& RB251 - 3 point mounting
For Origin Live & Rega arms - critical for optimising performance Origin Live & Rega tonearms are sensitive to various adjustments - some of these secrets are not well know to owners or dealers. This page is designed to help you get the most out of your tonearm. - Treat the arm with care
Low effective mass 11 grams Effective length 240 mm Overhang 17.2 mm Offset angle 23 degrees Mounting distance: platter centre to arm hole centre 221.7 mm Diameter of mounting hole 23 - 25mm but 24mm is preferable as it allows threaded VTA adjuster to be fitted Size of base mounting nut 32mm A/F (across
A modified Rega toneamr retains it's original geometry and fitting in every respect - the modified Rega RB250 is also a straight swap for the RB600 and RB900 along with all other newer Rega Models such as the Rega RB251 and RB301. If your arm is not a Rega it is certainly possible to
Using the standard Rega or Origin Live counterweight the arm will take cartridges up to 15 grams - which covers just about all cartridges. Using the "heavy" counterweight supplied by Rega, the arm will take cartridges up to 20 grams but will have trouble balancing lighter cartridges.
Counterweight Position and Low Centre of Gravity A common idea that should be questioned is whether a tonearm counterweight should be positioned as close as possible to the yoke for best performance. This minimises inertia and thus reduces see-saw effects over record warps. A variation of this theme is that low slinging the weight