I have an EBS 650 amp that runs down to 2 ohms. With it I have two Neo 112 cabs each rated at 8 ohms. I'm therefore runing the amp at 4 ohms and I want to add another speaker. Can anyone tell me whether I can just add another 8 ohm EBS 112 cab or not without risk of damage? I have got conflicting advice so far so any technical advice would be brilliant!