AKG K701 (Open)
Powerful amp required to make these come alive. No EQ / colouration - Pure flat-line reference phones ; what you hear is what’s on the CD / music.
Very capable of giving high impact bass, sub-bass, and treble. Mids and vocals are excellent too. Separation of instruments is amazing, you can sense the space between the different instruments / sounds.
Due to no colouration they may seem dull compared to other non-reference, more coloured phones as these are reference in the truest sense of the word.
Due to their precision and lack of colouration other genres may sound more clinical, harder to enjoy, I put this down to the mastering process of music simply mismatched for these headphones. Suits ALL genres provided they are well produced, with jazz, classical and vocals it is supreme.
Music has a crystalline sparkling clearness and power that engages and enthralls, and is the closest headphone I have ever heard that makes me feel actually there with the artist/s. Just for perspective I have tried the Sennheiser HD800’s and they are given a run for their money by the K701’s. Considerably less expensive at about ? of the Sennheisers.
I have trouble finding an adjective to sum them up, the closest I can get to a description is spacious, crisp, punchy, phenomenally articulate / lively and an absolute pleasure to listen to.
I think they are from an advanced alien civilization, absolutely awesome!