My friend is selling me a crate cab, it's either a BE1810 or a BC1810 (not a clue what the difference is). From what I've found online it says that it is a 4 ohm cab. GK says if I'm running a cab off that amp it needs to be 8 ohms. I'm guessing the cab is an 8 ohm 18" and the 10s are wired up to be 8, then put in parallel with the 18 to give you 4 ohms total. Is there any way I can easily rewire it to run at 16? Would that harm my amp? Wouls I be able to wire it up so that my amp sees a 4x10 and a 1x18? Any input would be greatly appreciated.