b.d Posted December 1, 2019 Posted December 1, 2019 Item: pair passive 30hz tapped horns, Will Cowan design, built by Paul Spencer with brand new still-unused 12" Eminence Definimax 4012HO drivers Location: Kinglake West, VIC Reason selling: Not using. Condition: DIY, never used. Pickup only, COD Price: $500 for both horns and both drivers. Firm. I had Paul build me two of these last year but my plans for speakers took a different direction so haven't had the need for these. The drivers were bought brand new and haven't been installed, other than Paul briefly installing one to measure the finished subs. Some plans and graphs can be seen here http://www.cowanaudio.com/th.html The finish is fairly rough form ply - the subs designed to be out of sight. They would benefit from a sand and paint if WAF is a concern. Here are Paul's blog posts from the building of this actual pair https://redspade-audio.blogspot.com.au/2016/02/30-hz-horn-sub-continues.html https://redspade-audio.blogspot.com.au/2016/02/30-hz-horn-sub.html 1
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