TYPICAL DUAL CASSETTE DECK: The first transport is a playback deck only. Its output is recorded on the second transport only. It doesn?t have separate outputs which may be routed to the XR® 600E (or any mixer). The second transport has inputs and outputs which function like a single cassette deck. Even if the tape inputs on the XR 600E were routed to the XR600E tape outputs, it wouldn?t be possible to playback on the first transport and record on the second transport.
NOTE: If the dual cassette deck does have separate inputs and outputs for each transport, then it is possible to record from the playback deck through the powered mixers Tape in/Tape out on the XR 684 and XR 600F to the record deck.