Instruct: Classify Amazon reviews into positive or negative sentiment
Query: weak & hollow.

Sure the bass is ok, but the mids & highs are very weak. Eq'ing in itunes & winamp made a difference, but when you listen to something flat, this unit fails miserably. I've been recording sound for quite awhile now, and I must say that this unit is one of the worst I've heard out of the box. And you shouldn't have to adjust your EQ settings that much to get a decent sound.Go with something else.