Straight tonearms without offset angle
In the October issue of Stereiphile, there was an article on a tonearm that had no offset angle and therefore had no skating force. The disadvantage of this is at the beginning and end of the record, the tracking angle error was much greater than what you get with an offset angle. For conventional tonearms that have an offset, and require anti-skating, which can never be perfect, the typical tracking error has a supremum of about 2 degrees, and according to online Lofgren calculators, this imposes a second-order harmonic distortion less than 2%.
I have a single-ended triode amplifier consisting of vintage globe 45 triodes transformer coupled to 833A SETs which drives Magnepans. Such SETs typically have second-order harmonic distortion as high as 10% which does not hurt the sound. A straight tonearm without an offset would have a maximum, or supremum tracking error of just under 10 degrees. If this causes a second-order harmonic distortion of less than 10%, would not this be irrelevant in a SET system? Is there any way of calculating this, or has this ever been studied?
As well as the thread here on the Viv Labs Rigid Float, I can recommend studying a couple of others elsewhere: At Audiokarma At diyaudio It's a fascinating subject, not least for the love for underhung arms exhibited by owners contrasting with the hatred exhibited by those who do not own them. |
As Stated on many occasions: "There is a principle which is a bar against all information, which is proof against all arguments and which can not fail to keep a man in everlasting ignorance-that principle is contempt prior to investigation." Where investigation and experiences off are not easily attained, an open mind is also a wonderful companion and failsafe against everlasting ignorance . |
Pindac, wow, I have no idea of you’re trying to say here. I had a wonderful writing professor in college which would point out that your "fog index" is through the roof lol. You’d be well served reading the Elements of Style (Strunk and White) and rewrite this so that it was clear what you’re trying to say. I’m interested to hear it, really! I'm guessing you’re trying to say have an open mind and be willing to accept new ideas. Eleven words, one short sentence, vs...eh, I got tired counting lol. |
