I don't see why not. Of course you won't be able to make the most of the HD800s, but I think that is the best sound for the price. Even though the HD800s are very expensive, they are very good value IMO, outclassing every Audeze headphone for me.
I haven't heard the Vali so I can't comment on that, but the M-Stage is very good for the price. The X3 should be a decent source.