jcarr

Responses from jcarr

What about diamond cantilever/stylus combo
It is with deep regret that I must announce the departure of a true giant. Yoshihisa Mori passed away on Dec. 26, at the age of 77. His numerous accomplishments at Grace, and subsequently Sony (SACD as well as phono cartridges) are a testament to ... 
FR66s vs Ikeda IT-407 CR tonearms
It is with deep regret that I must convey the sad news that Osamu Ikeda passed away at the age of 92, on 2018-09-17, Japan time.He contributed to analog audio in a manner that few can emulate, and will be sorely missed.The Ikeda brand continues, i... 
Highest detail cartridges
Certainly @chaksterDenon's DL-1000A MC cartridge had an effective tip mass of 0.077mg.https://www.denon.jp/jp/museum/products/dl1000a.htmlEven their lower-priced DL-305 got down to 0.168mg.These cartridges (as well as Technics 205, 305, 100) were ... 
Cartridge Loading- Low output M/C
May I ask what low output MC cartridge has 5ohm and 5mH? The 5ohms is representative enough, but 5mH is a few decimal places larger than I would expect.http://www.whatsbestforum.com/showthread.php?15077-Cartridge-Loading-A-Misnomer&p=258578&am... 
SL1200GAE New Tonearm
http://www.theaudiobeat.com/equipment/spiral_groove_centroid.htmSpiral Groove embraces the same design philosophy as Ralph is espousing. "the bearing interface situated in the same horizontal plane as the stylus resting in the record groove"https:... 
Phono Preamps with "balls" ?
>There is a real bipolar " problem " against FETs and is that you need perfect matched devices<As I wrote earlier, the JFET matching issue can easily be addressed by measuring and sorting. This requires extra work and organization on the par... 
Phono Preamps with "balls" ?
Hi @rauliruegas : bipolars are better for LOMCs... how? Please substantiate why.I specified two key areas in which a JFET front-end is superior to bipolar transistors for use with LOMCs, and also spelled out two areas in which JFETs are weaker (bu... 
Phono Preamps with "balls" ?
Ralph, although I completely agree with you regarding the overriding importance of designing sufficient overload margin and circuit stability into phono stages, while rectification of RF energy (and subsequent intermodulation) is indeed an issue w... 
SME V Tonearm on eBay Hong Kong Sellers are FAKE!!!
Information for Lewm.After Fidelity Research went out of business, Osamu Ikeda (together with his manufacturing partner IT Kogyo) made a VTA adjustment base that works with the Ikeda IT-345 and IT-407 arms as well as the FR-64 and FR-66 family.The... 
Looking for Technical help with Scan Tech (Spectral) Cartridge
Adrian: There are four internal leads inside the MCR - left hot, left cold, right hot, right cold, and they correspond to the four output pins at the rear of the cartridge. Electrostatic grounding of the cantilever is accomplished by the act of us... 
Oh no, there's metal in your records!
http://kuzutetu.cside3.jp/dia100930.jpgThe linked photo is of the internals of a Victor MC-L1000 cartridge. As far as I know, the cartridge in the photo was not subjected to unusual neglect, nor was it operated in a uniquely iron-laden environment... 
additional processing and customs charges on goldring 1006 or nagaoka mp150
Hi Chakster: While the MC-L1000 was certainly the most extreme of the range, that is not necessarily the same thing as musical enjoyment.I partly agree with the following author, that many listeners would probably consider the MC-L10 to be better ... 
additional processing and customs charges on goldring 1006 or nagaoka mp150
Hi Chakster: Many audio designers are also audiophiles, and whether they subjectively like the outcome of a particular design choice will inevitably affect whether that design choice finds its way into the final product (or not). So yes, these cho... 
additional processing and customs charges on goldring 1006 or nagaoka mp150
There is quite a bit of unwarranted conjecture on this thread.Last year I had the pleasure of listening to the same exact album on LP and R2R. If I recall correctly, the tape deck was a Sonorous Audio ATR 10 RTR, turntable was a Doehmann Helix 1 w... 
Audio Technica AT ML-180 Cartridge Advice
The materials that cartridge manufacturers can ask the cantilever manufacturers to use can either come from the cantilever manufacturers, or be sourced by the cartridge manufacturers. This is true for every part of the cantilever assembly includin...