When was the model 512 discontinued?
The model 512 was discontinued in the spring of 2012.
The 512 was a headworn microphone that used the SM10 dynamic mic element. The 512 had a single headphone on the same side that held the microphone boom. The other side was padded foam. The cable had a male XLR for the balanced, low impedance microphone output, and a 1/4" tip/sleeve male phone plug for the headphone input.
The final U.S. retail price was $135. The model 512 was introduced in 1985.