Quad 10" Audiofrog 10D4 test boxes
 

my first run with Audiofrog.............
first enclosure 2.25cf3 per side tuned at 30hz
https://cimg8.ibsrv.net/gimg/www.car...53a0f60298.jpg
https://cimg4.ibsrv.net/gimg/www.car...b23b63697d.jpg
https://cimg4.ibsrv.net/gimg/www.car...71f42b9e6d.jpg
https://cimg2.ibsrv.net/gimg/www.car...cbdc66e988.jpg

2.25cf3 tuned at 33hz
https://cimg6.ibsrv.net/gimg/www.car...4999d23e65.png
https://cimg0.ibsrv.net/gimg/www.car...162b7a0f35.jpg
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https://cimg9.ibsrv.net/gimg/www.car...b48379c317.jpg
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https://cimg2.ibsrv.net/gimg/www.car...20d01f78bd.jpg