As you have seen in many places on our webpage we use the deviation chart to show how our models compare with other professional headphones.
We're explaining how to read and understand that chart is this short blog.
Let's start with what is a deviation in this chart. We use a Z weighting compensation based on ISO 226 standard as the zero point. When we measure headphones frequency response we make a sweep signal from 20Hz to 20kHz and capture the response with a measuring tool. The deviation from the zero at every frequency is charted.
What this chart shows is how much is the total deviation from zero in negative and positive dB readings. For example, if headphones would read -10dB at 400Hz and then + 10 dB at 8kHz and these two would be the peaks, then the total deviation would be set at 20dB.
We choose to show this as a way of supporting our promise of a balanced headphones response in full spectrum. You will find many measurements online to go through specific frequency ranges and decide what is important for you. Just keep in mind that comparing measurements from different labs or even reviewers can be very misleading. Make sure you have them normalized and you know for a fact what you're comparing actually goes together.
Of course, there's always another way. You can just try them out.
Rok Gulič, CEO