I have a GK 700rbII and an Aggie gs112NT and I really love the rig. I play mostly jazz in a trio and in a loud 20 piece big band. I have seen many threads praising the use of 2 gs112's and how great they sound. My question is does it make a difference in the tone or just in the volume? The rig I have is big enough for the majority of what I play...at times I need more volume, not much though. Will the second help my amp work better or help the over sound of the rig? I play a custom fretless p-bass, an applause acoustic fretless (that sounds great with the set up) and have recently added a Ibanez 506 6 string. Any suggestions? I guess I want the second but would like to be able to tell a $399 difference if I got one. I live in the middle of nowhere and cannot go to play one in a store. The rig I got was from things I read here.