I've got two boards with parts already soldered. You need to add: transformer, 2 opamps, and components for the Linkwitz transform. These are set up for use with 115VAC input.
More info can be found here:
http://maxhawk.flagshiphosting.com/projects/Linkwitz/
$35 each + USPS shipping.
More info can be found here:
http://maxhawk.flagshiphosting.com/projects/Linkwitz/
$35 each + USPS shipping.
An externally hosted image should be here but it was not working when we last tested it.