I've been running a used Avatar 2x12 through a GK700RBII with great success, but I did have to replace the tweeter-horn's coil once already. I read somewhere that I need to set the tweeter at just a bit up from off or it will destruct; I have it at about 1/4 up and it's starting to fart and crackle. I turned it back to barely on and the sound disappeared. Anyone know about this? I use an MM Stingray and probably don't need any tweeter highs anyway, but I don't want to blow it out again. I play at modest levels, as I am always run directly through the PA.