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In Reply to: RE: (Altec) 604 - Field Coil Version e.g. by Wolf von Langa- experiences? posted by baja on January 02, 2016 at 11:14:19
My experience with the many FC drivers that I've used is that FC isn't really superior once you factor in the FC supply and the heat a FC generates it really has no benefit and to me is just a way to get a audiophile to part with cash. Sure old FC drivers can sound wonderful. But I myself wont buy any more modern FC driver except maybe cogents. I have had the opportunity to compare identical transducers one FC other alnico and I and the other testers couldn't hear or measure any difference. I have also replaced my LM 555 FC drivers with alnico. Im not missing anything but the bright light of tungars.
Follow Ups:
Kloss,
I know that I am late to the party on this topic, however, I wanted to agree with your findings on the comparative value of Field Coil motor drivers.
I have been living with and comparatively evaluating field coil drivers for over a decade and have found NO increased sonic value derived by incorporating an ElectroMagnet motor versus various static magnet types. It's the cone and voice coil designs that will make the biggest sonic differences.
Lance
We're getting into the realm of hair-splitting. We compared EVM 12L to 12" Rola's FC in exactly the same setup. Strictly IMHO and those present, Rola's had a slight edge over EVM. Was it worth extra $$ and effort? Everyone has to decide that for himself. For me it was.
Mmh Kloss, that makes me wondering .... Unfortunately there seems to be nobody around who really audited the 604 field coils - or do they stay quiet für certain reasons? Who knows. Would be great to get some more suggestions...
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