Very weird sound signature. Sennheiser must have fired the guy that designed this POS, otherwise they're on the road to ruin.

The sound is "hollow", bass extension is really poor, the mids sound very bland and lack any punch. Only the highs can be described as being decent. Presence is very juicy and honestly, quite pleasant. As a positive point, these cans are easy on the ears for long periods.

The 270 don't go as loud as I want them to. The drivers are small and waek, thus they don't handle "man" power. Too bad the comfort kills just about anything else as far as closed cans go! The bionetics design is great and makes this can a TRUE circumaural can (I have medium-large ears).

Bottom line is: MUCH better cans can be bought for the same $$$. Think 7506, HD280, HD25, K271, etc...

The HD270’s were my first pair of Sennheiser headphones which I purchased to hold me over till I got my HD580’s. Now the first thing I noticed with these when I put them on was “wow the highs are strong.” For some reason these headphones almost screech when it comes to highs. I did some reading and I found that Sennheiser headphones need a bit of time to “Burn-In” so I plugged them in an left them on for a couple days.

A couple days later I decided to give them another try but even though there was a bit of improvement… these headphones still sounded terrible. The highs were so overwhelming that they hurt my ears when I used them with music and the mids were so dim that I could barely hear the artist singing. For the price I paid ($50) I can’t really say these are the worst headphones I ever heard in this price range but there are definitely better choices out there.

As for being portable these work decent but not great. They require a bit too much power so if you like your music loud your portable player may have a bit of a hard time getting them at a good volume. If the clarity were better I may have a different opinion on this.

If these headphones have any purpose at all it has to be that they are pretty decent for gaming. The way the highs stand out actually helps in some games where hearing the other players is important. Things like footsteps, gunshots, reloaded, and bullets hitting and object come out very clear. I actually even find my self getting these just for playing a game but when it comes to movies or music these headphones just don’t cut it.