Hey All, Im currently in a good band with good guys and were playing modern rock and metal Alice in Chains, Slipknot, SOAD, Tool, and such - a lot of detuned stuff. Allow me to say that Im not having a volume problem. All the guys are great musicians; I have a decent 4X10 rated at 1,000 watts and an amp rated at 500W which has never travelled to 6 on the volume knob. Here locally, Ive been seeing a lot of fellow bassists (not just rock/metal guys) playing through cabs consisting of a 15 (or even 18) and an additional 2X10 on top. Ive also heard several folks on this forum doing the same. Assuming everything else being equal (amp wattage, speaker output); does this kind of rig set-up have more pros than cons over a 4X10 cab? Output, clarity, definition, tone? Thanks so much everybody.