I'm interested in hearing some opinions on different styles of cabinets and speakers. I've been seeing more and more 12" speakers around over the past few years. What do you think of the 12? What do you think of a 15" cabinet as a stand alone? I ask this b/c I used to have a 115 Genz Benz that I thought was alright. Does anyone use a single 1x15 cab in their rig, and no other speaker? I imagine a 4x10 would be superior, though I've never owned one. Would a 2x12 cab be superior to a 4x10? I realize a lot of this is a matter of preference, but I am really trying to understand how different speakers sizes and configurations handle the sound of the bass. Thanks!