Posted by Oberon [ 12.211.138.7 ] on September 07, 2004 at 14:17:42:
In Reply to: Re: Alnico verses ferrite verses neodymium posted by Ralph on August 29, 2004 at 18:46:37:
Ragnar Lian, co-founder of Scan-Speak, said that speakers with alnico magnets had 10x less distortion than ferrite and neodymium had about 20x less. If a copper ring is added to a ferrite magnet, it can approach neodymium specs but only above a certain frequency, below which the ring becomes ineffective.
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