I've used my Grado Sr80i for movies and music for almost a year. I would definitely prefer the AD700 but since you mentioned that you need more bass, then the Sr80i is a AD700 with more bass and a tad warmer. Both are open cans. Both don't require amping to shine, they're both easily driven and pretty comfy. They're both almost the same price, and the grado build quality is amazing.
So my question is, why not?
So my question is, why not?