or in a midrnge driver frame, magnet, and structure that reflect back 70% of wave...right thru the cone.....
i recall somebodys patent expiring.....
lots of engineers talk a good. game about system engineering.....i know these things on beasts with over a million parts.....
and have been humbled....
i recall somebodys patent expiring.....
lots of engineers talk a good. game about system engineering.....i know these things on beasts with over a million parts.....
and have been humbled....