As these become available and 'in hand', will be curious to see what people's experiences are with the sound quality: 1. User-configurable EQ? (If not, boo, but how the presets - any different?) 2. Quality of the supplied headphones? Other 'cans' used? Using an amp? 3. Comparisons with previous generations or other players? All of this is subjective, of course, but discussion could still be illuminating.