I have a new Peavey tour 700. It is rated at 700 watts at 4 ohms or 500 watts at 8 ohms. I need to buy a Cab for it. I can get a 4 10 Speaker cab rated at 800 watts rms 1200 watts peak or a 4 10 rated at 400 watts or 800 watts peak at 8 ohms or 2 15 rated at 600 watts rms or 1200 watts peak at 4 ohms. I want to get one that will not strain the amp or the speakers. Any help would be appreciated.