AKG K81 DJ vs Sennheiser HD 598 SR

Despite the compact size. the bass is full, has great impact, deep extension yet is not loose. The low end also has a natural quality to it that makes these headphones great for music that is performed using real instruments.
The mids are slightly recessed, but also have a natural tone. The highs are the most recessed or rolled-off, but the detail and airiness of the music is not totally absent. This quality helps give the sound a smooth and pleasing tonality.

The K81 can be used “DJ style”, wherein only one ear cup is in contact with the head. The cups have a smooth swivel action so they can be rotated to face outwards. A user can choose to hold one ear cup up to his or her ear while flipping switches or turning knobs on the mix board with the other hand.

While these are already quite compact, the ear cups can be folded into the headband to reduce their size even further. This makes them easy to stuff inside a bag and travel with.

The clamping force is not too much at all, so acceptable levels of pressure will be applied on the ears. Also, the ear pads are thick with ample pleather padding on the surface. This combination provides adequate cushioning between the ear cups and sides of the head.

The aluminum headband itself has some good flex. Combined with the sliding mechanism of the ear cups, K81 can be adjusted to fit a wide range of head sizes. Also notable are the numbered steps on each side of the headband, which allow for accurate and consistent ear cup positioning.

Although it's mostly made of plastic, the materials don't feel cheap at all. Aside from feeling sturdy, the plastics have a smooth rubber coating which makes them feel premium to the touch. Also, the headband is made out of aluminum which is significantly more durable than an all plastic one.

The large ear pads feature a velour surface and a soft foam material underneath. The comfort of the headband is also notable. It features a synthetic leather material with a thick foam inside. In combination, these cushioned parts feel like pillows on the head.

These headphones are in a price range that is quite affordable, yet offers sound and build quality that is beyond the standards in its price bracket.

The bass takes a bit of a back seat compared to the other frequencies, yet is still enough to give fullness and punch to the sound. The mids are the star of these headphones' sound signature. They are clear and a little bit forward, which give a lot of extra detail and presence to guitars and vocals. The highs are pretty crisp and clean, and complement the other frequencies really well.

Even for open back headphones, the soundstage that the HD 598 produces is amazing. It is quite wide yet natural at the same time, which makes it feel like you're listening to the artist perform in front of you live. This wide sound stage and great imaging also make these ideal for games and movies, as these can enhance audio immersion.

This makes the headphones quite easy to store, and the cable easy to replace. Also, the attachment mechanism is a twist to lock system which minimizes the chances of the cable getting disconnected while in use.