Yes,I believe that the fully modded arm is better than the RB 600.It is reported as also being better than the RB 900."The 250 uses bearings fixed on two sides, with a plastic counterweight
coupling system; while the 300 - and the 600 and the 900 - use a one
sided bearing fixation, with a metal counterweight coupling system.
Furthermore, the 300, 600 and 900 use an inferior spring system to set
tracking force. The 300 uses a stainless steel mounting base, vs. brass
for the 250.
The bearings are slighly better for the 300 and up, but, according to
Rega, such improved tolerances don't bring any benefits (!). And they
don't because of the lossier bearing coupling.
The Origin Live level one modification takes care of the counterweight
coupling problem, and turns the RB-250 into a giant killer.?" This is a quote from an old post in Groups from someone with a good knowledge of Rega arms.I hope this helps.
coupling system; while the 300 - and the 600 and the 900 - use a one
sided bearing fixation, with a metal counterweight coupling system.
Furthermore, the 300, 600 and 900 use an inferior spring system to set
tracking force. The 300 uses a stainless steel mounting base, vs. brass
for the 250.
The bearings are slighly better for the 300 and up, but, according to
Rega, such improved tolerances don't bring any benefits (!). And they
don't because of the lossier bearing coupling.
The Origin Live level one modification takes care of the counterweight
coupling problem, and turns the RB-250 into a giant killer.?" This is a quote from an old post in Groups from someone with a good knowledge of Rega arms.I hope this helps.