Cartridge, Compliance, try what in my JVC UA-7082 Arm?
For options, I found and bought the optional extra counterweight, fits either 7082 or 7045 https://www.ebay.com/itm/193237660632 |
Z1s would indicate 'spherical' found this who found that " In searching for an answer to the above, I came across the following post on Audio Circle forum by a member whose screen name is griffithds: All Z-1 bodies are the same. There is a Z-1, Z-1S, Z-1E, Z-1EB, Z-4 which is also a Z-1 and a few others. All the same. All the stylus are interchangeable. But they are not interchangeable with the X-1. The cartridge generators are very similar but they (Victor/JVC), changed the diameter of the tube that slides into the cartridge body so the X-1 and Z-1 are NOT interchangeable. But they do sound the same. I own both and have to get up and go over to the turntable to be able to make a correct determination as to which one is mounted and playing. That is unless you have the SAS stylus attached. No mistaking it when it is mounted. Also, when you order the SAS from Jico you can get the clear housing, the green housing or the orange housing. These are the different colors of the -1 (clear), the -1E (orange),or the -1EB (green), stylus housings. Exact same SAS stylus but just in case you want to stay with the same color of the 'Z' cartridge that you own, Jico supplies you with the option to buy the same color of stylus housing. The 'clear' housing is the color of the one that came with the Z-1. Just for information purposes, the Z-1 was a Beryllium cantilever with a Shibata tip. The 'E' versions were Elliptical tip. The 'S' version is conical or spherical. The 'B' on the 'EB' version was E for Elliptical, B for Beryllium. Hope this answers your questions. If not, then ask again because someone could write a book on all the variations of this Jem!" |
Well, I have tricky ways to avoid pushing the preamp volume up to hum zone. With current 4.0mV output, the hum starts just above my preferred maximum, that is why I am looking for high output, equal to 4.0mV. alt. use 1. Current. TT to McIntosh tube tuner/preamp mx110z (thru preamp for it's wonderful Phono EQ), Then preamp to Cayin A88T tube amp, via Cayin's 'preamp in", (just a thruput). Volume is from McIntosh preamp. Volume limited by hum. alt use 2. TT to preamp for it's Phono EQ. Importantly, it has 2 MM phono inputs. I will use 1 for 12" stereo arm, other for 9" mono arm. Then, the difference, plug the preamp into any Cayin amp line in, get volume from Cayin amp, no nooise of any kind. alt use 3. Now possible, using current TT (won't be option for TT81/7082/7045). This would work until I have the preamp overhauled. Audio-Technica has built-in phono preamp. I use it, go straight to Tube Amp, skip going thru McIntosh preamp. In spring get preamp overhauled by McIntosh, solving hum. ................................ As I say, with 97xe 4.0mV, the hum starts just above. If I get lower output, then we get into hum territory. |
Merry Christmas/Happy Holidays Mono Cartridge for UA-7045 arm. .......................... Grado ________ ME+. wgt. 5.5g; track 1.5g; output 5mV. COMPLIANCE ______? (exact or range, low, mid, high?) I just wrote Grado and asked what the compliance is, and if they think it is ok for JVC UA-7045 arm. ................................. Ortofon 2 Mono, basic $360; 2M Mono SE version $530. nude shibata r/R6/50um; weighs 7.2g; track 1.5g; output 3.5mV compliance: dynamic, lateral, 22um/mN ........................ ?????????????? |
uberwaltz, thanks, I looked it up, Denon DL-102 Technical Data
Ideally, I hope to track with elliptical, Shibata, SAS tip, lighter force than that, and get more bass without trouble. And, not pay a lot for it. Anyone remember the Meineke Muffler commercial: https://www.google.com/search?rlz=1C1SQJL_enUS881US881&sxsrf=ACYBGNRYFlACzZMRq37-PE_ARucH0DfkNw%3A1577366352809&ei=ULMEXrX8MM_OtAbM-pxQ&q=not+gonna+pay+alot+for+this+muffler&oq=not+gonna+pay&gs_l=psy-ab.1.0.0i22i30j0i22i10i30l4j0i22i30l4j0i22i10i30.21667.25729..29281...0.1..0.103.1099.11j2....2..0....1..gws-wiz.......0i71j35i39j0i273j0i131j0i67j0.3hrQSztLpQw |
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. |
I may try a Shibata or SAS stylus in the JVC Z1 cartridge that is coming with the TT. Meanwhile, I am reading that using Shure's Dynamic Stabilizer Brush allows using higher compliance cartridges in some higher mass situations, like the JVC-UA-7082 and 7045 arms. I can easily try both my Shure V15Vmr and 97xe, both use the brush. Shure only gives Static Compliance Specs. Shure makes a correlation of compliance with designed tracking force, i.e. suspension must be stiffer, less compliant, for higher tracking force. I always set both my Shures at 1.25g successfully using Thorens Td124 with SME 3009, Audio-Technica AT120 with it's similar weight arm. ................. from Shure, June 19, 2015 Static Compliance Specifications and Definition, The static compliance specifications for Shure phono cartridges are: V15 Type I - 0.000025 cm per dyne of force V15 Type II - 0.000025 cm per dyne of force V15 Type III - 0.000030 cm per dyne of force V15 Type IV - 0.000025 cm per dyne of force V15 Type V (all versions) - 0.000025 cm per dyne of force All cartridges that track from 0.75 to 1.5 grams - 0.000025 cm per dyne of force All cartridges that track from 1.5 to 3.0 grams - 0.000020 cm per dyne of force All cartridges that track from 2.0 to 4.0 grams - 0.000015 cm per dyne of force All cartridges that track from 3.0 to 5.0 grams - 0.000010 cm per dyne of force Note: Static compliance is an indicator of low frequency tracking only. High frequency tracking is dependent upon stylus mass and stylus stiffness. High frequency tracking is specified (when available) by trackability specifications. In basic terms, compliance is the opposite for stiffness. High stiffness = low compliance. Low stiffness = high compliance. The static compliance of a phono stylus is determined by the stiffness of the elastic bushing that supports the stylus shank. Look above at the V15 Type I. Apply one dyne of force (by pushing sideways) on the stylus tip and the tip moves 0.000025 cm away from its resting spot. A stylus that requires a greater tracking force is less compliant because the stylus shank is more robust, and the heavier shank requires a stiffer elastic bushing for support. Analogy: A plastic straw can be supported by a soft elastic bushing. That same bushing would collapse if the straw were made of iron." |
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 ................................ 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 ........................................ 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 ________??? ................................................ |
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 ...................... how do you compute from 20cu to _____ mu/mN??? |
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:" |
chackster, You missed the fact that I never mentioned the Z series. I plan on moving to something better for the 7082 arm. (better than if I put a new Shibata in a Z-1S body). First considering JVC X-1II. Thinking a new Shibata stylus with old X body rather than finding one with an old original stylus. I am asking about putting a new Shibata in an X-1IIe body. Will that be equivalent to a new Shibata in a X-1II body? IOW, what, if any, difference in the X-1II or X-1IIE cartridge internals. |
whatever the compliance's are, two new to me tonearms working with my MM cartridges. Acos Lustre GST-801 9" Arm using Shure V15VxMR body with new Jico SAS/Boron shaft, with Jico Brush. (btw, Jico told me their brush is just a brush, not dynamic dampening nor static removal like Shure's brush is). JVC Victor UA-7082 11-1/8" long arm with new Grado ME+ Mono Cartridge, Elliptical stylus. Haven't played test records, but they both sound great. ...................... |
both arms lifters not working. 7082: UPS broke the small curved arm that actually lifts the tonearm. The center post moves it a little bit only, but it is too far below the arm. How do you adjust the height of the 7082's lifter's arm? (to get/start close to the tonearm). GST-801 nothing lifts when lever is raised. I know how to loosen the set screw to raise/lower the lifter cylinder to get it close to the tonearm, but then there is no lift of the center shaft. |
richard_crl032 I've installed two Micro Seiki 505s, 1 technics b-500 base/arm, and 1 Acos Lustre GST-801. All have easy VTA adjustment, but I would not adjust them while playing. These JVC arms have ON THE FLY VTA, a big draw for perfectionists. Maintain matching vintage appearance (they are cool looking), and use an existing tonearm hole after fix. The composition difference between original rubber and replacement rubber is nearly irrelevant, it is the concept of isolation that was important, and simply get's restored. OEM description in 1981: "UA series universal tone arm with new gimbal support system. btw, the long 7082 is only 11-1/8" effective, one of the shortest long arms ever. |
