I went to try the Opus today. I really wanted to like the Opus since it's like 3 times cheaper then AK320.
Test Songs:
-Arnesen - Magnificat 4. Et Misericordia FLAC
-Yo-Yo Ma - Ave Maria FLAC
-Diana Krall -Between the Devil and the Deep Blue Sea Remastered FLAC
Test Equipment: Oppo PM3
Initial Impressions of Opus:
Construction looks good and feels good in the hand, although it's made from plastic housing, it feels firm and solid. Screen resolution and viewing angles are terrible, although it's not that critical since it's mainly for album art and navigation. Like the firm buttons, so no accidental presses. Selection of songs is pretty basic but functional, loading my 64GB card was pretty fast ... where's the playlist selection .. WHAT ? No playlist selection !?!
Initial listen:
Soundstage is nice .. instruments left and right and at the back, lots of kick powering the PM3 (PM3 needs power to shine man). But where is the emotion? I don't FEEL the warm emotional feels from Yoyo Ma's cello string (On side note, Chord Mojo does a EXCELLENT job of conveying the warm emotional feels from Yoyo Ma's Ave Maria, you feel chills going up the spine).
In summary, great soundstage, lots of power/kick, but cold and clinical.