J.A. Mitchell TecnoWeight

I got the incognito wire upgrade (via Brit Audio), then the Origin Live weight/endstub upgrade (which you can install yourself easilty). Both made substantial improvements. See the Origin Live website for an analysis of the different types of weights.

05-19-08: Dkzzzz
I read numerous accounts about weights being pretty much useless on RB300 or RB600 arms.

I've never heard anyone who has installed a Tecnoweight say they didn't notice a difference. It's a major upgrade on an RB300. I can't recommend it strongly enough. I immediately noticed a deeper and tighter bottom end. It also allows you to set the tracking force on the weight stub rather than using the spring-loaded dial. The spring dial will never be as accurate. You should read this article at Vinyl Engine:

Michell TecnoWeight

I also installed an Incognito in an RB300 a few years ago. It's a relatively easy upgrade with good instructions and everything laid out for you. However, you can buy all the parts separately and make your own "incognito" for less than half the price. Check this out.

If I had to choose between these two upgrades, I'd do the Tecnoweight first. It gives a bigger bang for the buck.

The RB300 is a very good arm that has a lot of hidden potential. If you're willing to spend the time tweaking it, you can get excellent results.

-Mark

Thank you Mark.... I heard that I won´t get such a big improvement installing the Tecnoweight, comparing to the tungsten weight(Rega) which I noticed was already installed in my RB300. That´s true ?

Thank you,
Hernani

I heard that I won´t get such a big improvement installing the Tecnoweight, comparing to the tungsten weight(Rega) which I noticed was already installed in my RB300. That´s true ?

Hernani, it's not true. The metal composition is irrelevant. It's the shape that's important. The dropped lobe of the Tecnoweight lowers the center of gravity of the arm to the plane of the stylus tip. Michell uses the same counter weight on their $1200 Tecnoarm. I assure you, this is a significant upgrade. If you don't hear an improvement after installing, it probably says more about the limitations of your system.

FWIW, the Rega Tungston and the Expessimo Heavyweight were the soup du jour in the early 90s. The Technoweight is a newer, better design.

Check out these other forums:
Rega upgrades/tweeks
Review: Rega Planar 3 Turntable

Mingles,

Thank you so much for your attention...I am going to do that....