I also have a pair of QC2s and think they sound fine, certainly not Sennheiser HD600 quality but then their main draw is travelling not dedicated listening. I went with them because noise cancelling is a must on military aircraft otherwise I’d have to pump up the volume past what any of my mobile devices are capable of which would also be at ear damaging levels.

3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1