Centre, speaker - twin drivers, use one enclosure or two separateenclosures side by side?

Chaps,

Just wondering if anyone has any experience. Given I have some days off
I might do this.

Have a couple of 4" bass units and a tweeter kicking around the garage
and the desire that _anything_ must be better as a centre speaker than a
horrid injection molded plastic speaker that came with the (oldish TV).


Probably making a vented enclosure. Is it better put the drivers in a
single enclosure or to make essentially two separate enclosures side by
side? Can't really think of any pros and cons except to do the sums and
see if the box sizes are realistic.


Pete