Dear Hiho: You are right, the majority are dual points. The first two points design I know was the one from Audiocraft 3300/4400 from what born the Graham.
All what " surrounded " a cartridge playback is so imperfect that an unipivot ( true one. ) design can't hyandle. We have to think on the forces around LP off center holes along non flat records along what the stylus tip has to negociate on the grooves. A unipivot design is at mercy of all those imperfections along the tracking tip forces that due to its inherent unstability preclude as a " best " bearing choice. This not means it can't works because we have several examples that said it works but the penalties are additional distortions that a fixed bearing ones does not have because that regards.
The cartridge needs at least in the tonearm: stability, dead stability because it is surrounded for to many unstabilities elsewhere.
What like we at home?, IMHO it depends on what kind and level of distortions we accept, which kind of trade-offs we are willing to accept.
Of course that some way or the other we have to have an objective method/process to be aware of different kind of distortions and different level of those distortions.
Many of us are not aware of those distortions and like what we are hearing with out note that what we are hearing is full of distortions.
As I said I prefer a fixed bearing pivoted tonearm against an unipivot but this is me.
My take is that whatever happen between the stylus tip, grooves and record and recording imperfections the tonearm task is to stay steady and neutral to those " movements " adding nothing that put additional " problems " to the cartridge very hard task.
Lewm, lowering by design thgose unipivots issues does not menas disappeared or that has no influence, its means only that the problems are only a little better under " control " but its influence is always there.
The fixed bearing design is perfect?, certainly not nothing is perfect but is more cartridge's friendly and this fact makes an overall difference everything the same.
Regards and enjoy the music,
Raul.
All what " surrounded " a cartridge playback is so imperfect that an unipivot ( true one. ) design can't hyandle. We have to think on the forces around LP off center holes along non flat records along what the stylus tip has to negociate on the grooves. A unipivot design is at mercy of all those imperfections along the tracking tip forces that due to its inherent unstability preclude as a " best " bearing choice. This not means it can't works because we have several examples that said it works but the penalties are additional distortions that a fixed bearing ones does not have because that regards.
The cartridge needs at least in the tonearm: stability, dead stability because it is surrounded for to many unstabilities elsewhere.
What like we at home?, IMHO it depends on what kind and level of distortions we accept, which kind of trade-offs we are willing to accept.
Of course that some way or the other we have to have an objective method/process to be aware of different kind of distortions and different level of those distortions.
Many of us are not aware of those distortions and like what we are hearing with out note that what we are hearing is full of distortions.
As I said I prefer a fixed bearing pivoted tonearm against an unipivot but this is me.
My take is that whatever happen between the stylus tip, grooves and record and recording imperfections the tonearm task is to stay steady and neutral to those " movements " adding nothing that put additional " problems " to the cartridge very hard task.
Lewm, lowering by design thgose unipivots issues does not menas disappeared or that has no influence, its means only that the problems are only a little better under " control " but its influence is always there.
The fixed bearing design is perfect?, certainly not nothing is perfect but is more cartridge's friendly and this fact makes an overall difference everything the same.
Regards and enjoy the music,
Raul.