"Tim S Kemp" wrote in message

Don Pearce wrote:

Interesting looking device, but I should think about Xmax before
taking the plunge. That cone is barely able to move. Somehow those TS
parameters don't seem to stack up...

Indeed Xmax is low, however cone area is significant so the volume of
movement is compensated there.

Not at all.

I don't think you understand how mediocre this Fostex woofer is.

2.3 mm travel with a ca. 30" cone moves as much air as 9.2 mm with a 15"
cone.

The Adire Tempest has 16 mm Xmax. It moves almost twice as much air.

And, if you want a ca. 15" driver with SERIOUS Xnax, check out the JL Audio
13W7 with 32 mm Xmax.