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In the Forum: Horn-Loaded Speakers
In the Thread: Vitavox S2 with Electromagnets
Post Subject: Sound result is directly related to constructor's understandingPosted by haralanov on: 2/25/2010
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 be wrote:
I just spoke with a guy who have made both permanent magnets and electro magnets for loudspeakers.
He said that the reason that electro magnetic speakers have a smoother and more grain free sound, is due to the temperature rise in the mechanical parts of the magnet

Be, excuse me for my honesty, but your friend has absolutely no idea what and why he is doing. To make such a moronic statement is pure evidence that he doesn't know how the voice coil wire interacts with the magnetic lines and how those lines "bend" when they "see" the constantly changing magnetic field generated from the voice coil when driven with transient from the amplifier.  It seems he doesn't know what "hysteresis" means and also he doesn't know how to PROPERLY build good sounding electomagnet system.  Good sounding electromagnets are not just simple pile of coils and iron parts. I also agree there are some very poor sounding field coil speakers, but that's not because of the topology, but because of wrong implementation of that topology.

Best regards,
Haralanov

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