I searched around a bit and couldn't find the answer I was looking for... I'm wondering what a B18 cabinet (or a fliptops.net B18 replica) would sound like using a B15 head? I play a P bass with treble turned way down, mids way up. I've never experienced an 18" speaker, nor have I heard the ins and outs of this kind of setup. I prefer the tone of the B15 Thiele cabinet over the traditional B15 cabinet, but have always been intrigued by the notion of an 18" speaker. The $600 replica at fliptops is too much to spend for an experiment, so I thought i'd ask here to see if anyone has done this. Tone is what i'm looking for, not SPL.