Rerurn to Romy the Cat's Site


In the Forum: Horn-Loaded Speakers
In the Thread: Vitavox S2 with Electromagnets
Post Subject: The roots of the thingsPosted by haralanov on: 2/25/2010
fiogf49gjkf0d
Be, I have made a lot of experiments and I confirm that if a permanent magnet (Ticonal, Alnico5, Alnico3SC) is heated up, the sound gets a little softer, but the typical "screamyness" is still there as if the sound comes from a very little zone, stuffed and compressed in the middle of the speaker with tizzing top octave response (no matter what is the value ot magnet density in the gap), as it shoots with laser gun right in your eyes. This is true even when you heat up the iron parts around the voice coil. Good field coil speaker (and i repeat most of them are pure garbage) not only sound "free from grain", but it allows you to hear very subtle nuances of the original acoustics of the environment in which the musicians have been recorded, so you have feeling for looking much deeper in the recording. The musical phrases become more meaningful, not only flying sounds, but the notes have relationship with each other. Of course the industry offers very expensive and mistaken speakers with low impedance electromagnets, working with low voltages and high current. Good motor run with low current and more turns, so if somebody hear expensive field coil and he did not like the sound, that's not because the field coils in general do not sound good, but the reason is that he is beeing exposed to a crappy driver made from exotic materials. And yes, good electromagnet driver HAS much denser harmonic content (assuming the dynamics are not restricted).

I will quote Mr. Oleg Rullit:
 rullit wrote:
Good field coil speakers mean an entirely different dimension in music reproduction. If I compared ferrit to tap water, AlNiCo would have more or less the range of a middle or maybe, depending on the material of the magnetic wire, high class mineral water, while field coil, manufactured properly and correctly would be the equivalent to mountain water you get directly from the source.

Rerurn to Romy the Cat's Site