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Tracking error distortion audibility

I recently unpacked my turntable from a couple of years of storage. It still sounds very good. Several times during playback of the first few albums I literally jumped from my chair to see which track was playing as it sounded so great. After a while I realized the "great" sound was always at one of the "null" points. They seem to occur at the approximately the proper place (about 125mm from spindle) and near the lead out groove. Questions:
Is this common? I have improved the resolution of my system since the table's been in storage but I don't remember hearing this before.
All others geometric sources of alignment error not defined by the null points (VTA, azimuth etc.) are essentially constant through out the arc correct? If so they should cancel out. I assume the remedy is a linear tracking arm but I am surprised at how obviously better the sound is at these two points.
Table - AR ES-1, Arm - Sumiko MMT, Cart. - Benz Glider, Pre - Audible Illusions, Speakers - Innersound electrostatic hybrid
Do linear arms really sound as good across the whole record as I hear at only the nulls with my set-up?
feathed
thom_at_galibier_design's avatar
thom_at_galibier_design
729 posts
 
Feathed,
Your longer effective length calulations show lower distortion and there is NO downside. You just proved the point. You claim to respect Brooks and you don't know everything yet you will "set him straight".

.02% (that's .0002) is not audible, and even if it had some marginal effect, all other variables need to be taken into account in order to understand the cost (if any) of this small gain. One needs to remember that this is a sub-system and not a single isolated parameter.

As Raul correctly points out, all design and implementation parameters of a cartridge/tonearm sub-system are interrelated with each other. I pointed out one potential downside to extending the cartridge to the very front of the headshell in my point (b) above - the possibility of compromising headshell/cartridge interface.

Because I respect Brooks does not mean that he is any more infallible than I am. I walked a fine line in my comment, and gave you the benefit of the doubt that you understood Brooks when I wrote: "If indeed your memory of your conversation with him is accurate, then I'll take the opportunity to set him straight."

Can you help me understand why I should believe that you are accurately conveying Brooks' explanation any better than you are assimilating Raul's and my comments?

Thom @ Galibier
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rauliruegas
13,088 posts
 
Dear Feathed: Normally who makes the drilling is the TT manufacturer or the tonearm manufacturer if the tonearm comes with the TT ( VPI, Avid, Rega, SME, and the like ).

Now, if we have to make the drilling normally too we leave 2-3mm for " to play " with the tonearm position in order to put on the precise position, at least in a fixed arm board, because in a round and with movement one like in the Micro Seiki or Acoustic Signature, I think Galibier and others to find out that precise tonearm position is extremely easy and there is no excuse not to do it, even for a non experienced person.

Yes, I'm with the tonearm design instructions and with the designer.
IMHO there is no reason why has to be in other way. I know that many people don't do that and send to build a dedicated protractor ( that several times ( almost always ) goes against the tonearm designer targets. ) or build by it self, I'm not in favor of any one of them ( hear things different not always means better ).

Well this is my opinion, I respect yours.

Regards and enjoy the music.
Raul.
feathed OP
16 posts
 
Thom,
I beleive Raul is of the option that if a designer approved an alternative drilling option he or she would explicitly state that. I on the other hand beleive the presence of a slotted headshell is explicit approval to tweak. I completely respect his choice.
You are obviously quite intelligent, knowledgeable and articulate. You know perfectly well that a cartridge can be moved forward without encountering any of the issues you raise. Quit being silly. You seem to be simply trolling for an argument. I have finally recognized that and will no longer read your arrogant, condescending and offense posts.
Good Bye and good luck.
dan_ed
2,451 posts
 
Feathed,

I see that you are new to Audiogon. Perhaps if you sincerely ask questions, listen when people answer, and think about what they answer you may just learn something new.

You started this thread with the assumption that tracking distortion is somehow inherent in vinyl playback and cannot be avoided. You have two of the most knowledgeable setup guys around here telling you that your assumption is bullshit, but you insist that they are misguided, mis-informed or just plain wrong.

As soon as you told me pivot to spindle distance doesn't matter with cartridge alignment, especially tracking error distortion, I knew it was no use trying to discuss this with you.

Good luck to you!
halcro's avatar
halcro
2,664 posts
 
Dan_ed beat me to it!
I was just about to write a similar response although I wasn't quite believing what I was reading.
Here was a guy (Feathed), who wrote a question about a perceived problem in his arm/cartridge set-up "Tracking error distortion audibility" yet continues to defend his set-up and argue illogically against any proposed suggestions to help him?
I have 2 different arms and cartridges and do not hear this distortion and I have heard at length 2 parallel tracking arms (the Air Tangent and the Rockport) and hear no differences to a well set-up pivoted arm.
I am at a total loss as to the intent of his post, but perhaps he was simply looking for an argument?
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