This model is equipped with the same magic diode as the Human Gear era models. As expected, the sound is different from the current models, thanks to the parts Bill was particular about. The current price surge is due to the value of this magic diode, which is also used in the Kenta models, so you can buy current replacement diode models at the list price from retailers. (I think the M.D. is installed up to around the 21,000s.) It's not new, but it's in very clean condition with almost no scratches. I decided to list it because it's too clear for my current system, so I don't think I'll use it. *Also, I may withdraw the listing due to changes in my system.