Eliminating interference is an area these cans have an aptitude in as at one stage I was completely oblivious to a vacuum cleaner. It wasn't until I was told to put my feet up so they can vacuum the area around me that I realised how well they conceal outside sounds.
With the sound-stage free from external distractions, these headphones lend themselves to fantastic sound reproduction. Admittedly when you first press play you question the volume level, but give it ten minutes and you'll be hitting the on-board 'volume down' key. Before you know it there's a reserve of audio punch, giving you the flexibility to up the sound when a special track comes on.
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There's no distortion, little fusion and a respectable audio range in which different tones eloquently balance one another. Pop in a song dominated by vocals and they wail, reproducing different vocal tones with ease.
On the other side, there's plenty of body when you're listening to bass heavy tracks with the beat sounding deep. Whereas Dre's Beats shudder a little with each hit of bass, these deliver cleaner notes, rather than violently stealing the show with exaggerated lows.
Clarity is an ever-present trait with these headphones, swiftly rendering electro notes and a variety of musical instruments alike, making it easy to discern the layers of different instruments.
In fact these headphones sound just as good as their wired counterparts, much to Sennheiser's credit.