All user reviews for the AKG k420

Features:
Semi-open
13Hz-27kHz, 125dB / V, 32 ohm, 105 g!
Comes with a small bag

First appearance, at first the headphone looks a bit cheap, a lot of plastic, weight reinforces this impression, and I fear that the fast folding system breaks quickly ... However, good point, aluminum reinforced headband, which breaks the aps easier but hey ..

Comfort level .. Well the headphone we do not feel, no pressure, warm against the ears a little, a matter of the atria

The sound!
Necessarily semi-open aspect gives a well-ventilated area, however, no insulation! Not tested on a bus, but it must be horrible, unforgivable on a mobile headset!
Otherwise very good at balancing sound, the bass is there no one feels that they take precedence over other frequencies, rather well defined ..
Headphones good enough for electro, hip-hop. For classical, it lacks a something for the metal, it sends puree! Too puree, the sound quickly becomes rough with Slipknot or SOAD, to take them.

In summary, good little headset nomad can afford to have good sound on the move on a portable source