It was the first one ever built, long before the recording industry had even thought of multi-track recording. While still working at NBC, Sarser combined his technical know-how and musical ear when he opened his own recording company with band leader Skitch Henderson and his wife, Ruth Henderson, and named it Studio3. I made him sound marvelous. He'd never heard himself sound like that before. I go into the room with the musician and listen to them before I go into the control room.
Some engineers never leave the control room and hear the singer's real voice.
He said he didn't have a clue so asked me to help him. The system they worked out was so far ahead of its time that Columbia, RCA, and all the other recording companies had to get their tapes duplicated there. He also solved one of the most basic problems of Thermal Remnant tape duplication, something that had plagued the whole industry. You then heat a piece of chromium dioxide tape to its Curry point, where it erases. As it returns to room temperature, at a magic point, it becomes extremely sensitive to magnetism.