music studio owner, recording, mixing and live sound engineer
"I decided to test them because I was using the Sennheiser HD650 with Sonarworks calibration and I was curious how they compare. They are a bit darker, but still very honest and a great reference. It's hard to tell what is better, so I decided to keep them - if my mixes sound good on two different, excellent headphones will for sure sound great anywhere."
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.