Jimbos Audio ramblings

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Originally Posted by karma1967

if you have an off set headshell then you are also changing azimuth,that impacts the sound more than a 0.25mm of vta adjustment to vta.

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My head shells are not offset, I think, but please explain?

hold out your right arm with your hand flat and pointing to the right,bending at the elbow drop your arm down and you will see your hand tilting,its the same with a tonearm.

Hey Adrian I have that Ravi Shanker album - Portrait of a Genius - It has been with me for the last 40 years and is a favourite. The recording is stunning and the music is sublime!

So do I. :)

Bloody hippies.

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Originally Posted by Macca

Bloody hippies.

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I think attitudes changed when The Path to Spiritual Enlightenment was renamed the A500.

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Originally Posted by karma1967

if you have an off set headshell then you are also changing azimuth,that impacts the sound more than a 0.25mm of vta adjustment to vta.

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Quote:

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Originally Posted by AJSki2fly

My head shells are not offset, I think, but please explain?

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Quote:

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Originally Posted by karma1967

hold out your right arm with your hand flat and pointing to the right,bending at the elbow drop your arm down and you will see your hand tilting,its the same with a tonearm.

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Sorry I was talking a crock of poo, of course my head shell has an offset in the normal meaning of a tonearm design, I was having a brain fart moment.

I still don't get what you mean it causing azimuth change, maybe I am being thick.

If the head shell/cartridge mounting platform is set up parallel to the surface of the record when the stylus is in the record groove, then surely as the stylus moves across the record surface the cartridge will remain vertically aligned at 90 degrees to the record, in other words the Azimuth will remain stable as set. Do you mean the Horozontal Tracking Angle will alter, and that the stylus will only be perfectly aligned to the records glove at the two null points as the arm/stylus is set up to?

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Originally Posted by Gazjam

I for one look forward to being old, incontinent and a burden on my Family.
One down already, two to go.


...Not saying which one mind.

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But you're 35 and no trouble to your relatives.

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Originally Posted by AJSki2fly

Sorry I was talking a crock of poo, of course my head shell has an offset in the normal meaning of a tonearm design, I was having a brain fart moment.

I still don't get what you mean it causing azimuth change, maybe I am being thick.

If the head shell/cartridge mounting platform is set up parallel to the surface of the record when the stylus is in the record groove, then surely as the stylus moves across the record surface the cartridge will remain vertically aligned at 90 degrees to the record, in other words the Azimuth will remain stable as set. Do you mean the Horozontal Tracking Angle will alter, and that the stylus will only be perfectly aligned to the records glove at the two null points as the arm/stylus is set up to?

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i mean if you set azimuth correctly and then raise or lower the tonearm at the back to adjust sra/vta you are also changing azimuth and will have to set it again. its why setting sra/vta is done first.

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Originally Posted by karma1967

i mean if you set azimuth correctly and then raise or lower the tonearm at the back to adjust sra/vta you are also changing azimuth and will have to set it again. its why setting sra/vta is done first.

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Sorry Jamie, I still don't get it, Azimuth as I understand it is the angle of the stylus in the groove, that is when you look at the cartridge/stylus from the front, setting the azimuth is getting the stylus perfectly aligned vertically at 90 degrees to the record, that's my understanding anyway. If you adjust VTA/SRA by raising or lowering the rear of the arm, it will change the rake angle of the stylus in the groove, in perfect world you want to get as close to 92 degree SRA as possible.

I found this very informative https://www.analogplanet.com/content...rake-angle-sra

and

https://www.originhifi.com/blog/3556...-Guide?q=35567