build a subwoofer box with 2 subs one front one down firing? bad idea?

[Steven20151991]

build a subwoofer box with 2 subs one front one down firing for home theater. basically im thinking of building a sub box with 2 subs 8" or 10". divide and port the box the to the front lower corner have one firing down and one firing front. plan to use it with home theater system(hooked to pc) and probably both 400-500w subs. is there any issue i might have with this or would a single 12" 600w down fire sub be better.]http://[/url]

 

[americanaudiophile]

The devil is in the details. I would not do down firing only. It would shake the floor but won't be as good as front firing only.
I would suggest you post your question here
http://techtalk.parts-express.com/forum/tech-talk-forum