Excellent product. Used mainly with McBook/ipod/iphone with external DAC (ESI Dr DAC Nano) or with Audio technica portable amp (ATH-pha30i). Used in flight as well as at home, in public transportation, ...   Bass are present, trebbles are crisps and mediums are beautiful. Those cans are very well balanced. I would not say bass are muddy or whatever audiophile term is used for sloppy engineered devices. Digital sound makes our ears very sensitive to exactitude and flaws in recordings. Recording techniques are incredibly more accurate than even 15...