In early 1961, a program was started to study the shortcomings of high quality audio tape equipment, to compare the best apparatus available against the existing state of the art as developed for instrumentation and other fields of magnetic recording and to design, as a result of this study, a new professional audio machine which would incorporate all suitable newer developments. It was clear that equipment could be dramatically updated in four major areas: 1) improvement in system signal-to-noise ratio, 2) reduction in flutter not only below 300 cycles but in the previously neglected band to 5000 cycles, 3) greater ease of operation and editing, 4) greater reliability and simpler maintenance. The method by which signal-to-noise performance was improved is described in the accompanying paper by John T. Mullin, -Advanced Tape Mastering System: Electronic Features.- The information below gives details of the mechanical design which resulted in fulfillment of the other factors set as objectives.
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