Lifted from the User Guide:
When connecting recording devices to the DA7, such as a DAT, ADAT, DA88 or a similar device, pay attention to the fact that these devices ALL operate using a wordclock reference signal. It is therefore important that you make sure that they are all referenced to the same clock signal.
This is the reason that we have provided a WORDCLOCK IN and OUT connector on the rear panel. You can also select one of the option Slots to be the master wordclock, or the 2TR A source.
This is a VERY important item in proper operation of any digital audio system. Please make sure that you set this function properly. Poor sound quality can result from improper wordclock operation. It can
also affect the operation of the DA7. For example, the SOLO system may seem to malfunction by not selecting a particular channel or channels. This can be due to Clock related issues.
See Chapter 17,
Options for specific information regarding the connection requirements of these devices. Also see Chapter 12, D-I/O for setting the master wordclock source. If after reading this information you are
unsure of the operation or setup of this function, please consult your
dealer.
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