Headphone ComparisonsDT 990 vs. DT 880 [With Video] by Stuart Charles Black March 14, 2016 by Stuart Charles Black March 14, 2016 Updates. 9/6/19. 9/23/19. Link/Article cleanup. 1/22/21. Link/Article cleanup. 2,518 word post, approx 4-5 min. read Hey there friend, and Welcome aboard!! The differences between the DT 990 vs. DT 880… 0 FacebookTwitterPinterestEmail