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In Reply to: Speaker Measurements vs. Subjective Listening posted by lenw on February 18, 2007 at 11:26:57:
While measurements are a good baseline to get a "grasp" on the speakers electrical performance and how it will interact with the partnering amplifier, that does not always translate into what one hears.Take for example the recent interest/resurgence in AlNiCo magnets being utilized in speaker drivers. While we can't "measure" the difference between say a Neodymium and an AlNiCo as it pertains to acoustical properties, the ear can certainly hear that the 2 different magnets impart different sonic flavorings/characteristics!
IMHO, one just needs to listen to a speakers that suits ones needs and choose which one meets the requirements of the end user....bottom line.
There R some speakers out there that don't adhere to strict scientific disciplines that sound "musical" as hell and that should be all that matters.....IMHO of course.
Cheers,
Follow Ups:
Alnico is conductive. I'm fairly certain Neodymium is not. In otherwise identical speakers, the Alnico one should have lower inductance and therefore higher frequency response. The Alnico is acting much like a shorting or Faraday ring. According to Adire, this lower inductance leads to what is generally called a "fast" driver.
"Alnico is conductive."Umm as a magnet material I'm certain it is but the only interaction it has with the driver is the opposing force to the electrical/magnetic field generated by the voice coil when current is passed thru it.
The link did not work so I can't comment on Adire's philosophy.
Cheers,
Alnico magnets are conductive, like aluminum and copper, as in they pass electricity. Neodymium and ferrite magnets are not conductive. Alnico being conductive will help alleviate some of the eddy currents which, I believe, stabilizes flux. The end result of using Alnico over another magnet material in the same driver is that inductance is lowered which gives a flatter impedance curve and also higher frequency response.Here's the Wayback Machine version. The original link worked when I posted it. You might try it again in a day or so. If that still doesn't work you can get it here:
http://web.archive.org/web/*sa_/http://www.adireaudio.com/Files/TechPapers/WooferSpeed.pdf
- http://web.archive.org/web/20060520204325/http://www.adireaudio.com/Files/TechPapers/WooferSpeed.pdf (Open in New Window)
define 'musical' in a way that is meaningful to a significant percentage of audiophiles. It's a word that has no meaning except to the person using it.
"Musical" is a term that can be thought of as PRaT and this term certainly raises the hackles of some BUT it is very real.U know it when U hear it :-)
Cheers,
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