Now that we're starting to catch up, here is the often requested frequency response. This is not an average, it is not smoothed, and it's a single point measurement (vs an average of multiple passes for one phone) for our master reference headphone. We tune our phones to be within +/-2dB of this curve.
As usual, the rolloff that starts at about 1.5K is characteristic of our headphone measurement system, and actually this represents linear. What's going on in the plot above 5K is very random based on micro adjustments of the phone on the test fixture.
I always hesitate to put plots out as many people expect headphone measurements to look like ruler flat speaker plots, but the reality is above 1.5K peaks and troughs are part of "flat" measurements.
THAT'S JUST NOT FAIR. Good job on the Alphas… I guess I'll be ordering these soon enough. These could be the most linear headphones under $1000.