1 cube each and brace the $#@& out of it!

 

Yeah, it looks like a custom box would be best. Just trying to think of some ideas for how the layout will look. Has anyone seen a setup in a 5th gen prelude that they liked?? I wouldn't mind showing off the mono amp at the same time if that's possible...right now it's hidden on the back of the box.

 

Go into your local dealer. and ask them what they can do for you.
Do a custom ported box. Should do wonders for those subs.

 

or start looking here http://www.sounddomain.com/MakeModel/Honda/Prelude
see what someone has come up with and toy with it untill you have what you like