Here is a stand box design I modeled for my Ikon2. It's 24" high, 15" high, and 15" deep. Driver is the Infinity Kappa 12VQ.
Name: Stand Box
Type: Closed Box
Shape: Prism, square
Vb = 2.266 cu.ft
Qtc = 0.795
F3 = 31.16 Hz
Fill = heavy
I saw a guy at AVS stuff his sub with pillows and he said they worked great so that's what I will be putting in the top and rear chambers. This is the modeled performance using BBPro.
A friend of mine who is very good in woodworking is going on vacation soon and said he would help me build them so that gives me time to get a hold of the drivers and other gear.