I have 271 MKII bought the AKG K as headphones for Project Studio and am totally blown away! The surprise starts when unpacking. In addition to the mounted leatherette upholstery fabric upholstery two are included. The second surprise is the spiral cord also supplied that can alternatively be infected with the "normal", straight cable. The screw (but gilt) 3.5 / 6.3 mm adapter is now commonplace. After the joy of unpacking, the good piece comes to the ears. As the fun continues. The wearing comfort is very pleasant. Although the K271 is a closed headphone that also dampens outside noise orderly, he does not press on the ears. For my taste, the optimal pressure. Then, of course, the most important is the sound: Now get the bacon and a bit funky sound of the shells. And since flying a the switch only really out! Rarely so a clearly delineated sound heard! Punchy bass, crystal-clear midrange and silky smooth highs. Here a detailltreue in playback unmatched - no matter what the volume. I use it also for Abmschischen and even after prolonged listening sessions ears are not tired, not the sound and not of the mechanical stress (pressure). A nettest details the recording in the studio is that the K 271 determines whether it is on the head or not. Taking him down, he turns silent, so it does not accidentally may cause feedback in the microphone operation ... that does not happen, however, one way or another, because my 271 K neither my singer, still get my spokesperson, the I'll keep me beautiful has in the studio and a must for the discerning music lover who enjoy good sound, indispensable - to the ears :-) For the price an absolute buy recommendation. Put self for iPod / iPhone the AKG K 271 much more expensive counterparts from relevant Nobel forging into his pocket. The downside is that only the size. But at home while enjoying listening, yes does not matter!