"To me working with headphones is like working with a sort of microscope, inspecting the audio in detail: finally with HPS S4 open back headphones I can trust what I hear, they are neutral and brutally honest! I'm proud to be an endorser of Ollo audio! Stuff made for the next audio engineer."
OLLO vs. Sennheiser vs. Audeze vs. AKG vs. Beyerdynamics vs. Audio Technica
We measured and compare the frequency responses of the main mixing headphones on the market. Measurements were made using G.R.A.S 45CC using IEC 60318-1 ear simulator and Dewesoft AD conversion Sirius system.