Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Volume cranked but still too quiet

As many reviews here have stated, these headphones are simply WAAAAYYYY too quiet. I've used them with my Sony home theater system, iTunes on my PC, on my iPhone, my son's iPod, and his keyboard. All sources are just super quiet with these headphones and you have to crank the volume all the way up just to have halfway decent volume. I'm not looking for ear-splitting volume but when you have to struggle just to hear dialogue or all the elements of a good piece of music, something's wrong.This is disappointing because these headphones are extremely comfortable. Too bad.