Memphis Audio designed their top-of-the-line SixFive Series VIV1422 14"
subwoofer to handle up to 2200 watts RMS and 4400 watts Peak .
paper/fiber laminate cone , double-stitched surround , Folded surround
for increased excursion without sacrificing effective surface area
reinforced and also provides more cone area for its given size , double
spider that are made to handle the stress of high-volume playback. The
sub also features direct venting of the Massive 7.5" 2 Layer voice coil
to keep your sub running cool , unique 320-ounce magnet be sure to
search for a cut away image or check out crutchfield's write up on the
motor .
https://www.youtube.com/watch?v=WnAeW8bLNNA
What type of design is this originating from? The Tymphany/Peerless had a similar design with the slugs acting as both the pole and flux? Perhaps this design is used on smaller drivers where there is a desire to keep the motor structure smaller than the basket? If they had used a traditional design the weight of the motor would have been outrageous. Very intriguing for sure, and efficient for what it is. Be nice to see the developer write-up or white paper about the benefits and draw backs to this design.
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