At 07:43 -0400 8/4/06, Tim Collier wrote: >All speakers have a magnet in them. "All" is such a dangerous word. There are piezoelectric and electrostatic speakers that are not magnetic and they are even becoming popular. It's probably true that, at least today, all woofers are magnetically driven. Compressed air driven devices don't seem to be practical - yet. -- --> In Christianity, man can have only one wife. This is known as monotony. <--