I have looked around and have found a ton of threads only concerning mixing cabs under the same amp/preamp but no luck in finding a real answer to my question. I have two 410s I use as a stack when'd needed and even though the tone is what I want, I want my bass to not only be heard but felt, and I'm lacking the oomf I'm looking for. So why not add a couple of 15s? Would running my bass through an 810 stack adjusted for more high end and some mids along with a separate 215 stack adjusted mostly for lows and maybe some mids prove somewhat helpful in terms of adding some "bass" to my bass? From my understanding, the stacks having different EQ settings under different amps means phasing shouldn't be a problem. I realize this would be a lot to carry, but having 4 cabs and consisting of two 410s and two 115s and then two separate amps, this should give me some options when it comes to choosing a rig for a specific gig.