Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Unbalanced Response

Sennheiser brands this item with the phrase "Bass-Driven Sound," which is accurate if your idea of "driven" is "total frequency domination at the expense of all melodic content." The lack of balance across the spectrum makes listening to anything other than bass-fluxed pop pointless; the volume levels necessary to hear upper-mids and treble from an itunes store m4a file is a virtual guarantee of eventual hearing loss. Really a very poor design, even at this price point where disposability rules. If you actually want to hear someone singing, take a pass on these.