riffrafff
1000+ Head-Fier
@Shanling, I'll second the notion re:stock filters. It seems like a very easy and straightforward thing to implement and would make M2s even more appealing and versatile. I do enjoy gradual filter settings, thank you, but reading 4490's data sheet makes me itch for more...
Yeah, The Cayin N3 is "beating" the M2s as far as digital filter implementation goes...5 vs 2. Seems counter-intuitive, since the AK4490 has them all readily available, built-in.