I've had this pair of cabs some years now and I have LOVED the tone and stackability of them.  You really have to applaud the design that allows drivers to be arrayed vertically like that.  I get that you can tip any cab on it's side but the handle arrangement etc mean this is how it should be done.  The benefit of having 4 drivers with the top one near head height as opposed to blow past your knees is the way it should be.  You can of course stack them on their side and it's advisable if you ar