Up for sale is my like new Yamamoto HA-02 headphone amp, unit has around 150 hours of use with no issues. Amp comes with a set of Herbies Large Baby Booties installed and their Ultrasonic SS tube dampers. Reason for sale is I have bought the twice as expensive HA-03 and only need one. These things are really sweet and have more than enough juice to drive my Audeze LCD2F and Hifiman Edition XV2 phones louder than I would ever care to go. Pictures show the original receipt, manual and double boxing as it will be sent to you. These things are 90 days out after the initial order and funding.