So a lot people (read: one) have asked about the speakers. Unlike a conventional cone driver, planar-magnetic driver stretches a thin electric membrane (e.g. aluminum) over a magnetic field (e.g. permanent bar magnets). When electricity is passed through the membrane it vibrates within the magnetic field. There are two immediate advantages: (1) the mass of the ribbon (it is often < 0.005" thick) is significantly less than a traditional cone; and (2) the driving force is applied across the entire surface of the diaphragm--unlike cone speakers where the driving force is applied to the tip of the cone and the entire cone has to react. This allows a system to be extremely "rigid"(the entire manifold moves in concert) and lightweight--avoiding such exotics as diamond and berrylium(!) tweeters.
The picture above is annotated to show the ribbon tweeter (red square) which handles the high frequencies and the mylar diaphragm (blue square) which handles the mid-low frequencies.
1 comment:
Now I see why you wanted to ditch some of your old stuff...
nice
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