help with subwoofer built-in entertainment center

[gychang]

need expert opinion, I want to add subwoofer module on the bottom of the mini entertainment center cabinet. I need help with size for a ?sealed box to be added for the following 8" speaker.

http://www.mcmelectronics.com/product/55-2421

I will be driving with the Pioneer Elite VSX-33TX (100w for sub output with variable x-over freq/volume built in) so the sub will be passive.

What shold be the subwoofer box size for sealed?, if not dia/length of the tube? I should state the size of the top shelf is 15"x15".

I am new to sub building (built several full-range speakers) would appreciate any help.

gychang

[ThomasW]

My recommendation is to save up and purchase a better quality driver.