full range setup out of a 4X12 cab(slight loop content)

[Kriist@aol.com]

ive always loved the sound of full range guitar(particularly clean)but 
needed 
the grime of the 4X12 for distortion etc....
im also doing alot of full range looping stuff
and to top that off i also got a vg8 recently

i want to know if anyone out there has midified their 4X12 with something 
like a tweeter
or throwing some bass 10s in there instead of 2 12's
i.e. left side=a 10(bass) 12(mids) and a tweeter(highs)
same for right
crosover, no crosover?

rodrigo