• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Shure M91, M75

have been meaning to upload my resistance and inductance readings of various Shure carts. Here they are - my obsessive collection of 78. They include M25/35/44/44GX/70/75/91/92/93/95/97x/99/110/115, SC35, V15 III/IV/V, and Radio Shack varients R27XT, R47XT, R1000XT, RXT5, RXT6 and V15 RS. There are multiples of most. All the "flat bottom" carts measure about the same but the V-bottoms vary significantly.

The data is fascinating and instructive. We can't tell if the physical internal geometry of two carts are actually the same (and Shure is misleading about it). We can howerver make very good guesses about loading, and about stylus swapping. For example, it's a good bet that loading will affect the M44GX and the M25 the same way. (I believe the M25 is the M44GX relabeled, not the M35 like Shure said. See - misleading.) You can look at this and think that maybe the best elliptical match for an SC35 might be the V15RS's VNSE3 family - maybe a Vivid Line? (Of course there is turntableneedle.com's Bliss eliptical for the SC35 as well. Spoiler alert - the Bliss sounds very good, but the VNSE Vivid Line on the SC35 seriously kicks ass...I tried it in an SC35 I'd put in a metal body; otherwise plastic trimming is required).
 

Attachments

Mike Wilcox said:
have been meaning to upload my resistance and inductance readings of various Shure carts. Here they are - my obsessive collection of 78. They include M25/35/44/44GX/70/75/91/92/93/95/97x/99/110/115, SC35, V15 III/IV/V, and Radio Shack varients R27XT, R47XT, R1000XT, RXT5, RXT6 and V15 RS. There are multiples of most. All the "flat bottom" carts measure about the same but the V-bottoms vary significantly.

The data is fascinating and instructive. We can't tell if the physical internal geometry of two carts are actually the same (and Shure is misleading about it). We can howerver make very good guesses about loading, and about stylus swapping. For example, it's a good bet that loading will affect the M44GX and the M25 the same way. (I believe the M25 is the M44GX relabeled, not the M35 like Shure said. See - misleading.) You can look at this and think that maybe the best elliptical match for an SC35 might be the V15RS's VNSE3 family - maybe a Vivid Line? (Of course there is turntableneedle.com's Bliss eliptical for the SC35 as well. Spoiler alert - the Bliss sounds very good, but the VNSE Vivid Line on the SC35 seriously kicks ass...I tried it in an SC35 I'd put in a metal body; otherwise plastic trimming is required).
Click to expand...
Thank you Mike !
 
Seconded, thanks. I have been keeping a log of carts as I run across them. The RXT4 is said to be the same as an M97ed. The RXT5 appears to be the same in tp4.
 
Not sure, specs are the same but pole pieces might be different. One guy on here measured 2 Me75p and they were very different. 1336, 557 and 1490, 708. RXT5 is closer to m95, cant find find m97 specs. M97xe has lower inductance @650mH.
 
Yea, I found lots of M97xE clones in my collection, as well as M95 clones and M97 E4 clones. I don’t have an RXT5 cart, at least I don’t think so.
 
You must log in or register to reply here.
Back
Top Bottom