And that brings me to the Crossfeed feature!Yes, to my ears the filter does work on both the TT2 and the Hugo 2. There's a discernable difference and it's actually useful when listening to certain tracks that take the treble too far. But I agree that as a feature it pales in comparison to something like Crossfade.
I just about never use it.
the crossfeed feature on my SW player is better, programmable with respect to frequency and level.
Filter and CF, I wouldn't miss them if they were gone, indeed wouldn't even notice.