I have two DIY subwoofers for sale. Prefer in-state sale due to size/weight of units. Will deliver to any major city in Texas (Austin, Dallas, Houston, San Antonio). Subwoofers are presently finished crushed red and black velvet (very hip ). Can be refinished in more tasteful cloth if you so desire. Pics available upon request. $500ea. Each sub uses: 15" Adire Tempest Two 4" Flared Ports Excellently constructed cabinets (1.25" MDF heavily braced - cabinets weigh >200lbs each!) Dimensions: 23"W x 23"D x 43" Tall. Net internal volume: 270L Tuning Frequency: 18Hz -3dB @ 20Hz Subs come passive with driver (ie just add your own amp - anything 200w or greater will be fantastic). *The* most, and the highest quality, bass you can get for $1k (these WILL beat equivalent $$$ SVS). Reason for sale: I live in an apartment and can't use them. ADDED 12/09: Construction photos are available at http://www.hayenga.com/mark/tempests/tempests.htm Photos of them in my theater are available at: http://www.hayenga.com/mark/TheaterSystem/MVC-633S.JPG Will take more photos upon request! Thanks!