I have never had a listening experience similar to this one, not in a good way. The headphones left so much high-mid room by attenuating the extremely specific frequencies around this area it made songs seem... 'distant', not like quiet but very lacking and really 'cold'. I wouldn't have an issue with lowering tonal values however this is in the range of human speech which is an essential pinpoint bandwidth for humans so naturally it will sound erm... un-natural? Particularly with vocals since that's the perceived band of human speech. The cable for this is roughly 20ft which is useful for if your input is in another room and the 3.5mm to 6.35mm phono adaptor Sennheiser supply with them is gold tipped for producers using budget headphones to mix with but are still concerned about noise interference at the tip & ring or for the plug & rip DJ whose washer-less headphone socket needs protecting that little bit more from EMI. Impedance on these headphones were similar to any at this price range (about 32 ohms) which is suitable for mobile phone and laptop devices without mass power to the drivers. The ability to position one ear cap forward slightly is useful for conversation or environment listening while still using them although this does not firmly click into place. The carry bag is the best I have had from any headphones so far though. Kudos Sennheiser on the good bag but crap headphones.