Can I safely run 2 6.5 co-ax, 2 4x6 infinity kappas which im near sure are close to 3ohm speakers alil under 3 actually and 2 infinity perfect 6.5 components 4ohm with crossover for tweet. All with a Soundstream Reference 920w amp.. specs on amp are 145x4 @4ohms, 215x4 @2ohms and 460x2 4ohm bridged? Thx Rob