| 类型 | Manufacturer |
|---|---|
| 网站 | https://www.cadaudio.com |
| 地址 | 6573 Cochran Rd Building 1 Solon, OH 44139 |
  |
CAD Audio originally took shape as the Astatic Corporation in 1931, founded by C.M. Chorpening and F.H. Woodworth, two ham radio operators who needed a static-free microphone for their transmitters. They worked with local engineers to develop the company's first crystal radio microphone, the model D-104.