2. analog
  3. 1123795783

Rega P3 - Arm hole too small?

I have had my P3 for a while now and just change my cartridge. I now need a 4mm spacer and the regualr nut is no good so I had to get the extended nut. Problem is that the nut doesn't fit in the hole. I dremeled out the hole bigger but the hole is now slightly irregular. I only had to dremel the bottom half and not go near the top where the plinth is. Is this a problem at all? I'm thinking as long as the nut is tight I should be okay. Am I wrong?

Thanks,
Steve
toysd09f
Post removed 
toysd09f OP
7 posts
 
Just out of curiousity why would it not work anymore with a Rega protractor? I should mention I did not touch the upper surface of the the hole. The top of the whole (plinth)is the same diamater as before just about 5mm and under all the way to the bottom is where I dremeled. So 5mm under the plinth the whole becomes irregular.

Thanks again, I am a little inept when it comes to working with my hands so I just want to know if I caused any harm.
Post removed 
stefanl
296 posts
 
The arm distance pivot to spindle should be 222mm for a Rega P3.That is from the exact center of the tonearm's pivot to the exact center of the turntable spindle.Now I think you have not altered your tonearm's position from what you have said so you should be o.k.The thing that is actually more important here is how much you tighten the base nut as this has a big effect on the table's sound.Too tight and you will deaden the music too loose and the music will be diffuse.Try only tightening the nut to finger tight and then just a 16th of a turn more.Using your ears as a guide be patient as it can be labourious but try to listen for the 'sweet' spot,the sound will open out when you get it right.Yes it is worth doing.
More to discover