Updates: 10/2/19. 12/7/19. Added iFi Zen. Article cleanup. 4/3/20. Replaced Audioengine D1 with FiiO K5 Pro. While I still love the D1, it’s outclassed a bit by the more powerful and versatile K5. 4/7/20. Added Video Discussion. 6/11/20. Updated Final Recommendation. 3,446 word post, approx. 7 min. read Hey there friend, and Welcome aboard!! Before