4,517 word post, approx. 5 min. read Big thanks to FiiO for sending the K3. I am not being compensated for this review/comparison. Just giving my thoughts and opinions! Updates 7/26/19. Stereo Crosstalk spec for K3 was missing. Minor grammar fixes. 7/29/19. Added Images/Gallery. 7/30/19. Added more Images from P.M. listening session, as well as