jcarr
Responses from jcarr
| 2013 RMAF Analog Reports + Meet and Greet Although I won't be there personally, my latest "Lyra Etna" cartridge design will be playing in public for the first time at the RMAF. I understand that one cartridge will be playing in the Vandersteen/Rick Duplissea room; other rooms have volunte... | |
| Stylus Rake Angle Peterayer:>I wonder if anyone has thought about designing an arm which would automatically compensate overhang and VTF for VTA changes.Certainly. To maintain a constant VTF, the tonearm vertical bearing should be kept at the same height, regard... | |
| Stylus Rake Angle Although my own experiments and experiences cause me to doubt some of the charts and statements on Yosh's webpage about VTA, overall it remains worth reading.http://www7a.biglobe.ne.jp/~yosh/vta.htmI will add that speaking as a cartridge designer,... | |
| Stylus Rake Angle Wntrmute2: IMO, visual observation of SRA with USB microscopes is not a waste of time - if it is being done correctly (which I have found is another very big if). But as I wrote above, 92 degrees was never an industry standard. Even the Jon Risch ... | |
| Stylus Rake Angle Nwright: what came as a surprise was when Stereophile (not Michael) switched around the photos and captions, so that the SRAs and cartridges in the published article didn't match up. Corrections were printed in a follow-up issue.FWIW, there never ... | |
| Lyra Delos and Soundsmith Hi Bifwynne: I've been working on the documentation for a new tonearm cable that we'll be introducing shortly. It's a twin-axial shielded cable with very low capacitance (32pF for 1.2m, including connectors). The low capacitance is so that a wider... | |
| What is the "correct" VTA for the Lyra Atlas? One parameter that will absolutely affect tracking performance is the effective mass of the tonearm. It may look crude, but adding pieces of mortite / blutak to the headshell is a good way to adjust effective mass.Unfortunately this method only al... | |
| Burn in Step up transformer with ipod. If we analyze what a transformer is, it is a length of signal-conducting wire (s) that are wrapped around a permeable core. As a purely passive device, it has less to go wrong than with an active amplifier. The possible points of failure due to to... | |
| Similar sounding of Lyra cartridge ? Here is link to an Audio Aylum post comparing the Delos with various other cartridges (including some mentioned in this thread):http://www.audioasylum.com/cgi/t.mpl?f=vinyl&m=880112hth, jonathan carr | |
| Lyra Delos and Soundsmith Mofimadness: 90% of the year I am deep in design and development, so I don't check email so frequently. Nonetheless, I don't see any of your emails (or cannot find them). No idea why. Overactive spam filters on my side? Something else?The followin... | |
| Lyra Delos and Soundsmith The Delos dampers were formulated and shaped with boron in mind. If (and that is a huge if) I would have used an aluminum oxide (ruby/sapphire) cantilever for the Delos, I definitely would have altered the damper formulations, and possibly their s... | |
| Who needs a MM cartridge type when we have MC? Hi Raul:>So, I think ( with out any prove of that ) that a stylus glued design is an advantage.If you are only concerned with tracking performance, rather than hearing what the stylus is picking up from the LP groove, perhaps some kind of suspe... | |
| Who needs a MM cartridge type when we have MC? Hi all, Raul:>I understand that the cantilever transmit no sound but the stylus " movements ".Ideally the cantilever will only transmit the stylus movements, but in reality a cantilever will have its own resonances and eigenmodes, which will be... | |
| Who needs a MM cartridge type when we have MC? From the perspective of a cartridge designer, the most commonly used figure-of-merit for a given material is propagation velocity - how rapidly it transmits sound. And this is determined by the material's specific gravity (lower is better), and Yo... | |
| Do 45 RPM records need higher anti-skate setting? I have a device which can show the actual side-forces imposed on the cantilever. Although the instantaneous side-forces are affected by groove drag (and therefore groove modulation), it appears to me that the general side-forces experienced by the... |