Shure M91ED Phono Cartridge Specs

Arthur Dunger

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Dec 26, 2003, 10:58:48 PM12/26/03

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Hi All,

I'm going to resurrect my old Shure M91ED phono cartridge. Surprisingly I
can't seem to find much technical info about it. I would be grateful if
someone could help me with:

- Recommended Load Capacitance
- Tracking Force (Range and Typical); IIRC 1.5g was OK

Any other snippets would be nice to know too eg. output level (mV @ 1kHz,
5cm/sec) and inductance.

Anyone know of a site which has database of cartridge info?

Thanks in advance for any help
Rob

Ron

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Dec 26, 2003, 11:58:58 PM12/26/03

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'Old' is a good description. I bought one in the late 70's (anyone else
remember disco?).
But old can still be good. This is a great sounding cartridge. I also saved
the ORIGINAL instruction sheet which has been scanned and FTP'd to my web
site (under big construction). If the following lines don't show up as links
in this reply, just paste them into the address line of your browser. Right
click on each image and save them to your hard drive.

http://home.san.rr.com/cyberedge/Shure_M91ED_01.jpg
http://home.san.rr.com/cyberedge/Shure_M91ED_02.jpg

Happy listening,
-Ron
(email: replace 'abuse' with 'cyberguy3k')

Arthur Dunger

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Dec 27, 2003, 12:58:06 AM12/27/03

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Ron, that's fantastic, thank you very much indeed!

It's certainly old, it was given to me as a present when I as a teenager
(and that *was* the disco era). I'm actually going to transfer some even
older LP's to my computer - my parent's warm sounding 60's Chet Atkins LP's.

I also found an old Shure M44-7 kicking around. The specs for these are
still available. These things are apparently the standard DJ "scratch"
cartridge. From what I remember the M91ED was a far better cartridge.

Hope you have a happy new year.

Best Regards
Rob

Arthur Dunger

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Dec 27, 2003, 6:26:11 PM12/27/03

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Hi,

> The cantilever is rubber mounted, I bet, and old is not good. Hard,
> brittle, edgy, might be better descriptions.

Mine still sounds OK. The stylus was replaced in the 80's. I was thinking
of buying a replacement before these things go extinct.

Rob

Mark D. Zacharias

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Dec 28, 2003, 6:51:00 AM12/28/03

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If you do, make certain it's original Shure. Even in the old days there were
lots of fakes around. Nowadays they are the rule rather than the exception.

Mark Z.

> I was thinking
> of buying a replacement before these things go extinct.
>

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Sofie

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Dec 28, 2003, 10:30:49 AM12/28/03

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Mark D. Zacharias:
You are absolutely correct. The price that one pays will be the key.
The original stylus for this very fine cartridge was a .2 x .7 mil
elliptical......
so it won't be cheap. If they can be found for anything less than
about $20 or $25 or so one can just about be "sure" that it is not an
original "Shure" unless one can get a great deal on EBay or something.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
----------------------------

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Arthur Dunger

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Dec 28, 2003, 9:15:51 PM12/28/03

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Thank you both for the warning.

I was thinking of buying one of those generic replacements (haven't checked
the price), just so I have a spare. Perhaps that's not such a good idea. I
would have thought that manufacturing technology would allow copies of
reasonable quality.

I've found one place (supposedly reputable) which sells replacements which
look like the original and cost in the ballpark you mentioned.

I was under the impression Shure no longer manufactured replacement stylii,
so anything original would therefore be NOS (New old stock) and hence
subject to aging of the rubber cantilever?

Rob

Mark D. Zacharias

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Dec 29, 2003, 6:24:34 AM12/29/03

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Shure has been out of, then back into, the replacement stylus business in
recent years. Don't know about the 91 ED, though.

You know, with all due respect to your Shure, you could buy a Grado Prestige
Black for 40.00 or less on the internet. Much better cartridge, and not
sensitive to cabling capacitance.

Mark Z.

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