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In Reply to: RE: Yep, I bought my ATML 170 after reading that, and I'm sure glad I got one while they were still available. nt posted by Rick W on June 12, 2011 at 08:37:03
Never seen one, let alone heard one.
big j.
"... only a very few individuals understand as yet that personal salvation is a contradiction in terms."
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IMO its a very good cartridge. Realistic timbre, detail without bleach/etch, fairly nuanced bass, and hf without unnatural exaggeration.
Its a shame AT doesn't "re-issue" the ML170.
I tried to get one of the AT ML170's from a supplier in Japan several years ago and was told that the 170 used some exotic compound that was not safe for the cartridge builders and was therefor banned by the government.
nt
AT used to use beryllium. I think it was banned for some reason. I believe Shure used it, too. When it was banned, they gave up producing the V15VxMR. I think that was the reason. I could be wrong.
Best regards,
John Elison
Yup, beryllium can be quite toxic: Inhaling of particles not recommended! But that's more a problem during manufacturing rather than being a real threat for the user.
Suitability for cantilevers otherwise is about as good as with boron: Beryllium is even lighter, but on the other hand also a tad less rigid - and iirc speed of sound is still a bit higher in boron. However, the main problem with beryllium is the enourmous price - if you check for beryllium foil in comparision to for example gold foil, you'll see what I mean... Hence I could imagine that the main reason for replacing beryllium with boron cantilevers rather was a financial one, with toxicity being just an excuse - 'cause if the usage really was forbidden, Focal/JMlab nowadays shouldn't be able to offer their beryllium tweeters either.
And just to name a few more manufacturers with beryllium cantilevers on some of their carts: Dynavector, Yamaha, JVC, Pioneer, ADC, B&O... uhm... and probably some more I already forgot. ;) As most sophisticated exemplar ever I'd probably nominate the diamond coated, tapered tubular exemplar as used for example on the Yamaha MC1000 - and I think the Accuphase AC3 sports a funky combination of a beryllium rod within a boron tube...
Greetings from Munich!
Manfred / lini
P.S.: I used to have a Yamaha MC505 back in the day - with tubular, tapered beryllium cantilever. A nice little cart. And I still use two types of AT needles with straight beryllium cantilevers on my AT120 and AT102P family bodies - the ATN150E with nice, sharp elliptical and the ATN152LP with LinearContact tip (both rectangular/square shank nudies).
What's the difference between the 170 and the AT-150MLX, which is currently being offered by LP Gear?
the ML150 sucked compared to my170. It was bright/etched/harsh. The 150mlx looks quite different from the ML170, and also different from the ML150 that sucked. Dunno, maybe the mlx version of the 150 is an improvement.
Click on the link below, then scroll down to the bottom and you'll see a pic of the ML170 and it's specs.
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