Rega P9 specs Re: spacers


Hi: could anyone tell me if the Rega specs on spacers are a good starting point to tell how many spacers I will need with a certain cart.

For instance Rega says their carts are 14 mm. Therefore if I have a cart that is 16 mm I would need one 2mm spacer. If I have a cart that is 19 mm I would need a total of 5 mm in spacers.

Is this is correct? If so, does anyone know if the height measurment is to be taken with the cart,mounted on the arm, and sitting on a record (i.e suspension engaged) or if the measurment should be taken without the action of the suspenion. I guess the question here is: does anyone know how rega get the 14 mm measurment, so that I can measure potential new carts the samy way, and gauge the spacer requirements.

Also, how do I short list potential carts for the RB1000 tonearm with regards to calculating resonance frequency. I cannot find specs for effective mass on this tonearm.

I'd appreciate it if any P9 owners out there could give me some tips on using this table with anything other than a Rega cart.
wfsf75d

Showing 2 responses by pbb

In reference to my previous post, what I mean is that if you wish to install a cart without lifting out the factory installed arm to shim it, the Kontrapunkt is at the limit in terms of body height.
I use mine with a Kontrapunkt B and it is, to my eye, about as tall a cartridge as can be mounted on this arm. I think that the arm can handle just about any mc cart and that only highly compliant cartridges pose a problem. You may be able to get the dimensions of the cart from the manufacturer's specs.