This is my first home theater with towers and a sub amp and all that so I need some help. I started off setting the sub crossover at 80hz and the volume at 40% then ran audyssey it set my speakers to large and everything at 80hz the sub was very lacking in power. I played the ironhide sweep bass scene from transformers and it was blah so I'm here for help. Should I turn up the volume on the sub? Shouldn't my speakers be set to small?

Denon 2809, Emotiva XPA5, M80's, VP180, EP500