For sale is a individually calibrated HD650 headphone from Sonarworks. I'm the original owner and purchased these off Sonarworks Individually Calibrated Headphones section, which they still offer for $500 (for anyone interested) This is not the generic HD 650 Sonarworks profile. Sonarworks physically measured this exact headphone pair and created its unique left/right correction profile, which comes with the Sonarworks code attached to the headphone so that you can then download the profile off their website once you receive it or you can try doing it ahead of time to make sure it won't be an issue. For those that don't know what this is, this is for audio mixing and mastering engineers and I suggest researching Sonarworks but essentially it corrects the natural boosts and dips in your headphones so you hear a more accurate, neutral version of the music, which helps make mixing decisions that translate better to speakers, cars, and other headphones.

The HD 650 is already supported by Sonarworks but this particular one has unit-specific correction for manufacturing variation between its particular left and right driver, rather than correction based on the average response of sampled HD 650s. Also to note, Sonarworks currently is not accepting existing headphones for individual calibration with no indication if they plan on offering that service again.

The headphone is in excellent working condition. There's a very slight indentation on the grill of one side (right side), and some slight whitish blemish on the grill of the other side (left side). There may be some other blemishes but none that I can notice but please view the pictures. Other than that, those things don't effect the headphones performance.

Selling because I got an Audeze headphone and these have since sat unused. I hope to see this headphone go to a good home where hopefully it well help someone else make better mixes vs collecting dust in my home. The headphone comes with what you see pictured and its Sonarworks profile ID code. No original box, manual, etc. Headphones are bubble wrapped in a box with additional stuffing for added protection.

This sale is for US only and you must have at least 4 stars or above with at least 5 reviews. Anyone else not meeting this must message me before buying and I reserve the right to cancel any sale not meeting the above prerequisite.