Dear Lewm: Maybe I'm wrong but I can't read where Mapman posted that DD TT are noisy per se.
Anyway I thinmk that the noise TT subject it is not a cue for real differences in TT drive mechanism performance.
If we take the best DD we can have noise figures like -96db in the SP-10MK3 ( it will be interesting to make a measure today in one sample of this TT. ) or around -100db like Rockport but there are good examples in the BD side with TT in the -90db values. I can't speak on this specific noise subject about idler drive TTs.
What for me is or could be interesting is not to know those " fantastic " values/specs but to know which is the TT noise threshold where there is no or where don't have any more influence in what the cartridge " takes ", where is that threshold TT noise figure/value where there is no more influence in the quality performance we are percieving.
Because: how can we sure that those -90db or -100 db or whatever are good enough?
This is something IMHO that belong to the TT designers as many other TT subjects/questions that today there are no clear and precise answers.
Regards and enjoy the music,
Raul.
Anyway I thinmk that the noise TT subject it is not a cue for real differences in TT drive mechanism performance.
If we take the best DD we can have noise figures like -96db in the SP-10MK3 ( it will be interesting to make a measure today in one sample of this TT. ) or around -100db like Rockport but there are good examples in the BD side with TT in the -90db values. I can't speak on this specific noise subject about idler drive TTs.
What for me is or could be interesting is not to know those " fantastic " values/specs but to know which is the TT noise threshold where there is no or where don't have any more influence in what the cartridge " takes ", where is that threshold TT noise figure/value where there is no more influence in the quality performance we are percieving.
Because: how can we sure that those -90db or -100 db or whatever are good enough?
This is something IMHO that belong to the TT designers as many other TT subjects/questions that today there are no clear and precise answers.
Regards and enjoy the music,
Raul.