Type: Ridtahler Dipole ("Ripole")
Dimensions: 15 7/8 high x 13 3/8 wide x 15 3/8 depth
Woofers: (2)Peerless SLS 12's wired parallel (4 ohms)
Response: 18hz-200hz

To view the drawing, parts list, and build photos, click on the link below:
http://jazzman-esl-page.blogspot.com/2011/01/ripole-subs-are-underway.html