With the arrival of compact discs the increased audio quality possible could only be maximized if the signal chain from source to master tape was totally digital. Although commercial digital recording consoles were being built to provide a digital path from source to digital master tape, there were no plans for a digital audio transfer console which would complete the digital chain. Thus work on a digital transfer unit went ahead with customer liaison. Signal processing and control experience gained on large digital consoles was applied to produce a 2-channel unit, which was to interface to a Sony 1610 and editor. This paper, therefore, briefly describes such a transfer unit, which has been in commercial use for over one year now, and although performing admirably, experience and further discussions with future customers, has resulted in development of the original "one off" prototype into a commercial Digital Transfer Console. The production consoles interface to both Sony 1610 and AES standards with two digital and one analog stereo input all under independent control. Snapshot memory and switchable sampling rate is also included. It is there developments which are detailed in the second half of this paper.
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