"When connected to the iPod, I found that the E-860 largely performed admirably with a full range of sound, but it did still suffer from a bit too much shrillness or sharpness, particularly in songs where the mid and higher range were emphasized. The Punch Bass Ex Technology was definitely at play, allowing for a better experience in songs where bass is more important, like R&B and hip hop. This being said, the issue with the harsher sound was far lessened when I used the E-860 connected to the on-board sound on my desktop PC instead. The audio was rich and full, rivaling what I got out of the SteelSeries Flux In-Ear Pro headset. What this meant is that these earbuds are capable of better sound, but they need a more powerful source to really shine."