I really like the bundled Aurvana. They're super comfy and I love the sound profile even has a headphone. The DT990's have horrible treble - ortary1990's EQ curve he computed via a antrhomphic head in a lab really corrects this though. The Super XFI tames that nasty treble too when you select the DT990 as the profile. But the best movie experience I've had over headphones was with the Aurvana.
More testing today - my NX Headtracker turned up which I combined with the DT990's. I really like Waves for music and it gets the front left and right well. But the rear channels are't really out of your head at all. The SXFI blows them out the water for that. And that's with my head measurements in there. So my conclusion still stands - Waves for music, SXFI for movies.
Tried the SXFI with my new WH-1000MX3 - the bass for movies is so similar to my dual SVS PB13's. It's like it thumps your ears. Hard to describe. The difference is I don't need to faf around for a day getting a flat EQ for each seating position. I used the MDR-1000 as the profile as they're similar sound signatures per rtings.com.
Also tried the windows app - was really well
hidden as there's no references on the SXFI pages. Makes experimenting with different headphones/profiles so much easier.
So the DT990 250ohm version I have has a big problem with clipping, even with EQ disabled during heavy explosion scenes. You can easily verify this by playing a 20hz test tone. This is likely because it's the 250ohm version and I need the gain at 90 to get to reference volumes. The Aurvana, on the other hand, has no clipping. Applying the cinema EQ really improves movies. I'm sure the DT990 32Ohm edition will be better - but there's not much output below 25-30hz which is important for explosions in movies - so you have the boost the EQ alot.