im looking to buy an Ampeg SVT-410HLF cab to add to my SVT-410HE i already have. i have a b2re head. i know theres the whole ohms trip. ive fried my brain trying to figure it out on my own but im just too dumb. i dont wanna spend 700 dollars on something that i either cant use, or will render what i DO have useless (blowing it out) can someone please spoonfeed me advice?