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Cartridge, Compliance, try what in my JVC UA-7082 Arm?

So, what to try in my new JVC UA-7082 Tonearm when it comes? (effective length 282mm) (11-1/8")

Guidelines? Advice? (I never bothered learning about compliance, I guess now's the time).

Anyone know the Mass of the UA-7082 Tonearm without a cartridge _______?
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Self Imposed Restrictions:

High Output, 4.0mV or more (to avoid tube preamp hum zone until it's repaired).

MM Only. (I am fundamentally opposed to MC pre-pre amp, as well as needing high output).


.......................................

Motley Crew On Hand:

4 headshells, none special

Shure MicroRidge Stylus and V15VxMR Cartridge

Shure V15VMR Cartridge (no stylus, I gave it a dirty look and it broke, horribly brittle shaft)

Shure 97xe Elliptical Stylus and Cartridge (despite it's low pedigree it's my current favorite).

Shure N78S Stylus (fits 97xe) (I did not inherit the 78's someone threatened me with).

Shure M44E Stylus and Cartridge

Audio Technica MicroLine AT440ML OOC Stylus and Cartridge

Audio Technica AT7000 body, no stylus

Audio Technica ATP-2

Audio Technica Series VIII P mount 

Audio Technica ___? Came with the AT120 TT (tracks 2.5g, I never used it) 

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It's a busy time, it doesn't get here till mid Jan, so theirs time to research.

Thanks in advance, Elliott






elliottbnewcombjr
elliottbnewcombjr OP
5,521 posts
 
Being careful, before choosing the rear arm for Mono,

I will wait to see the exact location of the existing rear hole on the dual arm tt I bought.

We don't know what arm it was drilled for.

UA-7045 is effective 9-5/8" 

I am warming up to the Grado ME+ Mono Cartridge, waiting for Grado to tell me the compliance. It's elliptical, not Shibata like the Ortofon, but the Grado internals sound advantageous, and help suppress Resonance.


elliottbnewcombjr OP
5,521 posts
 



grado service reply to me about their Mono Cartridge

"Yes, the ME+ is compatible" (I asked about UA-7045 tonearm)

they did not give any specific compliance info.

 
elliottbnewcombjr OP
5,521 posts
 
Semi-Final Decisions, thanks so much for all the help so far,

Dual Arm Deck Purchased:

https://www.canuckaudiomart.com/details/649553719-victor-jvc-tt-81-direct-drive-quartz-lock-turntable-with-long-victor-ua-7082-tonearm/?utm_campaign=response-received&utm_source=notification&utm_medium=email
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Main longer arm, it's 7082 11-1/8" effective length.

Stereo Only. use it's Z1s cartridge, upgrade Stylus to SAS/Boron.

https://www.jico-stylus.com/product/dt-z1s-sas-b/  (made by Victor Nivico)

light 1.5g tracking, J1 cartridge is high 5 mV output
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Rear, to be purchased +/- 9" arm (not get a UA-7045)

Stereo and Mono use

select an arm specifically for medium/high compliance STEREO cartridge
and a medium/high compliance MONO cartridge.

That way I can continue to use both my Shures: 97xe elliptical and V15VxMR microline. Both light tracking, high output, use or not use Dynamic Stabilizer Brush (brush also grabs dust, reduces static). Both light tracking/high output

97xe: get an SAS/Boron Stylus from Jico

https://www.jico-stylus.com/product/n97xe-sas-b/  (made by Shure).


V15VmxMR: get SAS/Boron from Jico

https://www.jico-stylus.com/product/vn5xmr-hg-sas-b/  (made by Shure).
................................

Rear +/- 9" medium/high compliance arm
(need to wait till I can measure the distance of the tt's existing rear hole).

suggestions ________???
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elliottbnewcombjr OP
5,521 posts
 
Joe Grado says OK for his Mono Cartridge ME+ with both JVC UA-7045 arm and Acos Lustre GST-801.

"it should work just fine
the compliance of the ME+ is 20cu"

http://www.resfreq.com/resonancecalculator.html 

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how do you compute from 20cu to _____ mu/mN???
elliottbnewcombjr OP
5,521 posts
 
found this. Is it about right?

"
The only way to accurately measure system resonance is with a calibrated low frequency test record and a chart recorder, or other sophisticated test equipment. Since most of us do not possess this capability, it is wise to do some preliminary homework in assessing the compatibility of any potential arm/cartridge combination. There are a few general "rules of thumb" that we need to consider:

* A tonearm whose effective mass is rated at 10 grams or below is considered low mass (e.g. early SME’s, Grace 747 etc.). A tonearm whose effective mass is rated between 11 and 25 grams is considered moderate mass (e.g. SME 309, IV, IV-Vi, V, Triplanar, Graham). Arms above 25 grams of mass are high mass in nature (Eminent Technology, Dynavector).

* A phono cartridge whose compliance is rated at 12 x l0ˉ6 or below, is considered low compliance. A cartridge whose compliance is rated between 13 x l0ˉ6 and 25 x l0ˉ6 is considered high to very high. Note: Another way of expressing compliance is um/mN. Here a rating of 5 to 10 is considered very low, 10 to 20 is moderate and above 35 is very high.
"
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