2. analog
  3. 1266367593

Are linear tracking arms better than pivoted arms?

My answer to this question is yes. Linear tracking arms trace the record exactly the way it was cut. Pivoted arms generally have two null points across the record and they are the only two points the geometry is correct. All other points on the record have a degree of error with pivoted arms. Linear tracking arms don't need anti-skating like pivoted arms do which is another plus for them.

Linear tracking arms take more skill to set up initially, but I feel they reward the owner with superior sound quality. I have owned and used a variety of pivoted arms over the years, but I feel that my ET-2 is superior sounding to all of them. You can set up a pivoted arm incorrectly and it will still play music. Linear tracking arms pretty much force you to have everything correct or else they will not play. Are they worth the fuss? I think so.
mepearson
samujohn's avatar
samujohn
291 posts
 
After the collapse of the Soviet Union a Western reporter asked Soviet scientist why Russia had so many theoretical physicists and so few experimental ones.
He replied- pencils are cheap!
mepearson OP
100 posts
 
Darkmo-I did say that I had a new 103R that had a stylus off-center after using it for a short time in the ET-2. What I don't know is what caused it.
darkmoebius
900 posts
 
Aaah, duly noted. Sorry about the mistake, Mepearson.

I'm really ambivalent on the subject as far as sonic performance, whichever works best. My pivot arm actually costs more than my linear, so it's not a matter of defending a precious investment.
mepearson OP
100 posts
 
As far as evidence against theory, evidence achieved through carefully controlled experiments is always preferred. In reality, I don't know of an easy way to do this. Would you run two "identical" cartridges for a predetermined number of hours with one being installed in a linear tracking arm and the other in a pivoted arm and after said hours are up, would you then examine/meaure each cartridge for changes to the suspension and cantilever alignment? I can see lots of variables creeping in here that could affect the outcome. The reality is I don't know how practical this experiment would be.

As far as cartridge manufacturers giving us any meaningful info on this debate, I am old enough to be cynical enough to think that we couldn't depend on it. Aside from the issues that manufacturers may have no idea what type of tonearm was tracking their cartridge before it was sent back for a rebuild, politics and money are pervasive in everything. Even if it was true, I don't know that cartridge manufacturers would tell you that using a linear tracking arm will shorten the life of your cartridge. Not only do they have to worry about lost sales to potential linear tracking arm customers, they would also most likely incur the wrath of linear tracking tonearm manufacturers.
samujohn's avatar
samujohn
291 posts
 
Yes, carefully controlled experiments are the scientific way. If available, they are the best evidence, however evidence has a hierarchy, at least in the legal world.
The highest standard is "beyond reasonable doubt". Granted, that is not the scientific way. However, a lower standard is, "by the preponderance of the evidence presented". We can all draw our own conclusions, but so far I see that even by this very modest standard, the burden of proof has not been met in the matter of "poor performance and quicker wear of the cartridge". I vote for acquittal.
More to discover