I've been using a quadbox and thought I might change to smaller cabs, like two 15" ones. Is that all i will need to replace a quad? I've never played through anything but a quad so i was needing help with the setup and stuff of smaller cabs. I just want to be able to carry my rig more easily! will 2 15" cabs give me the same volume/tone? also has anyone had experience with Genz Benz 15"s?