@pani
VPI super scoutmaster ref, JWM 10.5i with Valhalla wiring
ARC PH-6, 100 ohm load
McIntosh 2200 pre,
Raymond Lumley Megavox 75's monoblocks
Focal 1028 Be,
mostly Audioquest cabling
Pani ... New ART-9 up and running ...
Earlier we were discussing the rising top end in some the the high end MC cartridges. My friend Robert was kind enough to do some research to see what he could find on the frequency responses of some of the more popular cartridges. Robert writes a column on good records for Audio Beat and has done a lot of recording work and sales of audiophile recordings for both Cisco Music and Impex. Check it out: From Robert ... "Atlas: BTW, that's 8DB up at 20K! However, that really doesn't matter, but what does is the fact that 's up 5DB at 9K!!! Great for old Verves and RCA country records that droop in that region, but you'd better disconnect your tweeters if you wan't play the Beatles of Jascha Heifetz. http://s1164.photobucket.com/user/s33kw47h/media/LyraAtlas.jpg.html The Dorian is even worse, so I guess that's why you pay more for the Atlas. You can do better than both for a lot less. http://www.tnt-audio.com/gif/lyradorian_freq.gif For comparison, here's the far cheaper Dynavector 17D. I'll take the truth over that audiophile foolery. http://www.dynavector.com/products/images/17d3_f_response.gif Here's why the Denon 103s have such nice sound on brass and strings. No hype! http://gallery.audioasylum.com/cgi/gi.mpl?u=3771&f=DL-103R.JPG The OC9 graph is instructive. It has a obvious rise in the audible region, but but between 10-20K it's flat. I'm pretty sure the ART 9 has a similar rise, but I'm sure starts at a high frequency, hence a bit smoother sound. Nothing to get too concerned over, but I hear a slight one. http://www.dartmouth.tv/audio/images/AT-OC9ML-II.jpg Benz LP The only Benz I ever tried was the LO Glider. It stank in my system, but the Benz carts are certainly smooth on top, and I like that. http://digilander.libero.it/agostino.manzato/audio/reportage/mysonic/benz_lp.jpg For work related reasons I'll be sticking with Dynavector or Denon. Of course, response graphs don't give you the whole story, or we'd all have Shure V15-Vs, but they aren't BS either." |
Oregonpapa, Can you say how "Robert" is making those measurements? What equipment, what test LPs, what load resistance, etc? I am not necessarily a big fan of Lyra, but those reported deviations from flat response seem oddly extreme. Also, Raul is a fan of Lyra, and it hardly seems likely that he could tolerate such "distortions" without noticing the problem. |
Also, it seems based on the appearance of the various graphs that in the case of the Lyra cartridges vs the Dynavector Karat 17D3, you are comparing measurements done at least two different ways; the Karat graph looks exactly like the package insert that comes in the box with some cartridges, i.e., a straight line from 20 to 20kHz. The evaluation of the Lyra cartridges cannot have been done in the same way using exactly the same methods. So, at least those 3 graphs (Atlas, Dorian, Karat) are not scientifically comparable. I have not looked at the rest of the data, but I am betting that the same caveat applies. |