Posted by Wayne Parham [ 64.216.178.200 ] on November 09, 2004 at 22:28:40:

In Reply to: Some Questions Regarding This PA Subwoofer posted by Elliot Thompson on November 09, 2004 at 17:34:01:

This project is still in its initial phase. The main feauture is the push-pull plenum and I'm confident it will significantly improve distortion performance. There are also some things that may improve power handling too, we'll see.

In addition to the ProSoundWeb thread, you'll find more disussion about this project here in the threads below.