MOSFET's vs Bipolar's

Lateral power Mosfets from Exicon can be drop in replacements for many types of devices supplied by Toshiba and Hitachi. The Exicons supply 30% greater current have much greater speed and lower capacitance. In my particular amp they increased resolution and impact while reducing the overall grain structure of the whole sonic picture. Tom

http://www.irf.com/technical-info/guide/device.html

I don't know suitability for audio but........the opposite of 'lateral', which BTW, the majority of devices appear to be.

Also, Carver used IGBT from these guys in his Sunfire line....at least part of it.

No more than the difference between night and day in my neighborhood though some will say otherwise.Its a hell of a hobby as long as you dont obsess,cheers,Jack

Belles uses Exicon lateral power mosfets..Luminance Audio used the Hitachi lateral power mos fets. Tom