#Feastrex drivers for sale drivers#

Field coils are a very early design, dating back to the first days of radio when permanent magnet technology was in its infancy and magnets capable of exciting a speaker cone were massive and impractical. Rather there is an electro-magnet that requires, in this case, 80-120 volts of DC to magnetize the driver. So where to begin? These are field coil drivers, which means there is no permanent magnet like modern drivers, no chunks of heavy Alnico or Neodymium mushrooming out the back. This damned curiosity would finally be sated!

#Feastrex drivers for sale drivers#

Leather surrounds, exotic cone material, phenolic eat stuff! Oleg Rullit’s Atelier has been bookmarked on my computer for years, since first becoming interested in tube audio in fact, and when this pair of drivers became available at quite reasonable prices (for Rullit at least) I snapped them up. There are only photos of superbly executed works of audio art attached to astonishingly high price tags. There are no published specs and very little anecdotal evidence to look through. They are a mystery dreamed up by an elusive and shadowy mad-scientist of the audio world, these hand made beauties merge the highest pinnacles of the audio arts with obsolete and antiquated technology masterpieces that one suspects just might harness audio secrets long ago forgotten. In the past few years I have received more inquiries and questions regarding Oleg Rullit’s field coil drivers than any other component featured on this website, and I think I know why.

Glow in the Dark Audio - Atelier Rullit Lab 8 Field Coil DriverĪtelier Rullit Lab 8 Field Coil full range drivers