Vintage 1971 Neumann U87 with the InnerTube Modification. This thing is powerful, crisp, warm and amazing! The InnerTube mod makes it similar to the nostalgic U67 worth $12,000.00! The InnerTube Mod was done in California by wwww.innertubeaudio.com
I have the letter directly from. Neumann telling me the 1971 year from the serial number.
I will be putting this up for $5500 on eBay if there is no interest here. It may be a little. Too high end for the local market.
卖的人 写的出售信息