If you playing something like hard rock/ metal, get an extension cab, slap in some vintage 30s (if not already loaded) and watch you windows blow out :-)
Some people even like to mix speakers!
Vintage 30s in one side with greenbacks in the other!
Essentially the extension cab option gives you options....the use of speakers often overlooked when creating your dream sound!
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Ibanez JS1000 Black Pearl Finish, Peavey JSX 120 Head, TC Electronic G System, Marshall 1936V Cab, MXR Zak Wylde OD, Marshall Bluesbreaker MK2, JD Cry Baby Wah from Hell, Boss FV500L and FV500H