Given their price, it's actually a headphone well worth considering for everyone from budding audiophiles jamming Lossless files on iPod or iPad to serious DJs and producers needing great-looking but a high-performanc accurate set of sealed/closed 'monitoring' cans. The HFi-780's efficient 35-ohm impedance and large 40mm drivers respond cleanly even without dedicated amplification. Still, any quality headphone amp will help maximize the Ultrasone's dynamic 'quickness' and fully open its wide frequency range extension potential. The proprietary Ultrasone S-Logic Plus and ULE [Ultra Low Emmissions] technology as demanded by European Union standards provide a more 3-dimensional presentation of the soundstage within the headphones while minimizing electrical field emmissions emanating from the headphones -- it's a unique feature set exclusive to Ultrasone and one that many audio pros working with headphones all day will actively seek out.
The Ultrasone HFi-780 cool black on metal-flake aluminum cosmetics make it a must-have for nightclubbing or for just attending groovy headphone parties, not to mention just casual listening at home or on the streets. The full-size circumaural collapsible earcups fold into the headband for storage or transit. The non-detachable HFi-780 headphone cord measures only 1 meter long [3 ft] as ideal for minimizng cord slack for short run situations. The included Ultrasone extension cord is 4 meters long, allowing the whole cable to extend about 15 feet, if needed; it's one of the longest 'stock' headphone cables provided by any manufacturer.