My rig consists of a Hartke LH500 and 2 Hartke Hydrive 1x12's. I've been using this setup for many years now because it's light enough for me to lug around. Lately the two guitar players purchased all tube combos and are now very loud. Loud enough that someone in the audience at my last gig told me they couldn't hear the bass. I'm running the volume and bass controls at 2/3 of max now. There is no farting at these settings.. I'm going to have to crank it up more but if I hear it pop or fart, did I go to far and the cone is now damaged? OR Should I add a powered 1x15 cab to the mix.