The SPL deviation throughout most of the spectrum is great, but the entire tweeter level from 10khz up is louder than the majority of the spectrum...especially compared to where we are most sensitive. I'm not sure why they don't pad the tweeter down a little more. Perhaps power response?
I had a friend listen to the F208 and he wasn't thrilled with the treble. This could be why. It doesn't quite prove it, but there is a strong correlation, a causation rather, between exaggerated treble and listening fatigue. I'd like to see more! Unfortunately, I no longer have a Revel dealer.