Negative Positive
Title: Not Loud Enough...
Review: I tried these with my Creative Zen Sleek Photo MP3 player in a 3/4 JHC helmet and they do not get loud enuff to hear adequately standing in the driveway never mind on the road. The rated impedance seems low enough maybe the drivers are inefficient/lack sensitivity. I tried plugging them into the headphone output of my Yamaha YST 2.1 computer speakers and with the volume knob cranked up they do get loud and sound pretty good. Most portable devices probably will not have sufficient output to drive them properly for their intended use.
Is the review positive or negative? 