I have a couple of SE-700s, which sound great to me.
I have heard rumors about some of the headphones offered by Pioneer. Part of the rumor says very few of these headphones were made, often less than one thousand. But, with the number I see available on eBay, I would tend to question that.
I have also heard that the headphones were not made by Pioneer, but by some other company, like Azden or Stax. It does seem likely that the headphones were manufactured by some other company for Pioneer, as the serial number convention on the high-end headphones offered by Pioneer does not confrom to that used on all of Pioneer's other equipment. But who made them? I have contacted Azden and Stax, and both say they did not manufacture headphones for Pioneer in the 1970s.
Anyone hear similar rumors?
Doc