Litt klipp & lim jeg har samlet:
So having a browse of the data....
there's a whole bunch of cartridges that support the same styli (shank type) in the Shure family.
Specifically looking at the "Thick Shank" Shures we have:
M97 1550ohm
M104
M111
M92G 630ohm
M92LT 1550Ohm
V15VxMR 650ohm
1000E 650ohm
V15HR-P 650ohm
RXT5 1550ohm
VSTIII
VSTIII-P
The Generators are not identical (I've noted the impedance above)
The V15V generators are 815ohm
It seems that the shures are split into 4 families by impedance
650 / 815 / 1380 / 1550
It also seems that the 815ohm family is limited to the thin shank V15's.
It would be interesting to know how much of the contribution to the sound is the needle and how much the cartridge!
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taking the 95ed & 75ed both are thick shanked & have the same profile stylus -
the 75 ed is louder but the 95 ed is more detailed & nicer - I have never compared the impedance.. only the sound they make
the other different thing is the soundstage - much deeper on the 95
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M95 = 1550ohm
same as M97/M94/M92LT
M75 = 630ohm
Same as M73/72/71/70/55/44
So your feedback is that the 1550ohm generator seems to provide more detail while sacrificing some volume...(compared to the 630ohm generators)
I wonder whether the M75 630ohm generator is the same as the 650ohm family? (20ohm difference could easily be slightly different materials... later production, etc...)
Mind you the M75 family seems quite substantial....
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Here is a list copied from Lenco heaven:
Resistance Inductance
M75 630 720
M91E 630 720
M92E 630 720 (early M92)
M93 630 720
M95 1550 650
M95ED 1550 700
M97ED 1550 700
M97xE 1550 650
V15 II 630 720
V15III 1350 500
V15 IV 1350 500
V15 VMR 815 330
V15 VxMR 1000 425
V15RS 1000 425
Note: I did not check these figures!
My opinion: the lower these figures, the better (potentially) the cartridge.
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I have a V15HR-P which is the same generator (by measurement) as the 1000e, and even a Me75p that I have (1330ohm/520mH) - and also comes with a beryllium HE stylus - but in this case it is of a shape that allows fitting standard M97/M95 or V15Vx styli to the body.
The V15V-P (which I have) takes the V15VMR styli - being narrow shank the V15III & IV styli will work too - but the cantilever resonance is tuned differently for these higher inductance cartridges...
Best results are with the V15VMR (OEM - microridge) V15VP (OEM HE) V15V (OEM HE) and V15VSAS (Jico SAS) styli....
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Sorry I'm late to this thread... and I can't believe someone hasn't correctly identified this thing as the p-mount version of the V15-IV. It came out around 1981 and was the top of the M92/94/96/97LT line.
Unfortunately, being a IV, it used a complicated stylus. There are no known aftermarket copies available, not even from JICO. Contrary to your ebay ad, the lesser M-series styli won't work, and even if they did, the frequency response would be off due to their heavier cantilevers.
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V15V family (Laminated Core):
V15V Inductance (Z)= 330mH Resistance (R) = 815 ohm Shank = narrow (spec)
V15Vp Z=315mH R= 851 ohm Shank - narrow (measured)
V15V Z=324mH R=804 ohm Shank = narrow (measured)
V15VMR Z= 341 mH R= 814 ohm S= narrow (measured)
Ultra500 Z= 330mH R = 815 ohm Shank = narrow (spec)
V15RS / V15Vx family
V15RS Z=425mH R= 980 ohm S= standard (spec)
V15RS Z= 405mH R=982 ohm S= standard (measured)
V15RS Z= 431mH R=973 ohm S= standard (measured)
V15III/IV Family (laminated core)
V15III Z=500mH R= 1350 ohm S= narrow (spec)
V15IV Z=500mH R= 1380 ohm S= narrow (spec)
Unknown family position
V15LT Z=500mH R= 1350 ohm S= ??? (spec)
VST-V - most likely identical to V15V and Ultra500?
VST-III - apparently a broad shank cartridge. Related to V15Vx/RS? or 520mH broadshank family?
520mH Broad Shank family
V15HRP Z=535mH R= 1332 ohm S= standard (measured)
Close Relatives:
V15HRP body is identical in specification to:
1000e
Me75P (I have one body with this spec and one with much higher inductance!?! - both labelled Me75P)
SC35C Z=445mH R=~980 ohm S=narrow
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LAMINATION:
to the best of my knowledge the only models for which Shure claimed to have a laminated core were:
V15III, IV, V, VST-V, Ultra500
Note: Purpose of lamination is to reduce magnetic eddy current effect within the core poles. Eddy current effectively has a small but noticeable influence in rolling off the high end.
It is worthy of note that the laminated V15V has much flatter frequency response than the later V15Vx without the lamination, although the increased inductance will also tend to roll off the high end - so double whammy.
Shure appears to have put a LOT of effort into achieving a neutral/flat frequency response right through the 60's/70's/80's and then dropped to an "audiophile" tuned setup (their words) in the 90's with the release of the V15Vx and M97xE
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