1987 - 2017: Thirtieth Anniversary!
Best viewed in "landscape" mode.
Replacement/repair part number PRO 031
This is a new 10" woofer, featuring a bifilar voice coil and butyl surround; and improvements such as a vented pole piece. It is used in the following Genesis Physics loudspeaker models:
Its internal reference number (on the sticker, if it has one) is SW4 or SW5Y.
In sales brochures it is referred to as L250A or L250B.