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dCS 974 User Manual	Manual for Software Version 1.0x
dCS Ltd	May 2001

Connecting to a Dual AES Source

do this: Check that your source equipment is capable of Dual AES operation.

do this: Connect the AES 1 (or AES A) output on your source equipment to the AES 1 input on the dCS 974 rear panel and the AES 2 (or AES B) output to the AES 2 input, using two XLR cables. Ensure the cables are not swapped.

do this: Press the → button twice to enter first the Sample Rate Conversion menu, then the Audio Input Select menu. Use the rotary control to scroll down the list until the cursor is beside Dual AES. Press the Set button to select it.

The screen will change back to the Sample Rate Conversion menu. Proceed to Step 2.

Connecting to a Quad AES source

do this: Check that your source equipment is capable of Quad AES operation.

do this: Connect the AES 1 output on your source equipment to the AES 1 input on the dCS 974 rear panel, the AES 2 output to the AES 2 input, the AES 3 output to the AES 3 input and the AES 4 output to the AES 4 input, using four XLR cables. Ensure the cables are connected in the correct order.

do this: Press the → button twice to enter first the Sample Rate Conversion menu, then the Audio Input Select menu. Use the rotary control to scroll down the list until the cursor is beside Quad AES. Press the Set button to select it.

The screen will change back to the Sample Rate Conversion menu. Proceed to Step 2.

Connecting to a DSD SDIF-2 source

do this: Check that your source equipment is capable of DSD-SDIF operation.

do this: Connect the DSD SDIF-2 output on your source equipment to the upper block of DSD/SDIF connectors on the dCS 974 rear panel using three coax cables. Connect CH1 out to CH1 IN, CH2 out to CH2 IN and CLK out to WCLK IN. Fit a 75Ω BNC terminating plug to the nearby LOOP OUT connector.

do this: Press the → button twice to enter first the Sample Rate Conversion menu, then the Audio Input Select menu. Use the rotary control to scroll down the list until the cursor is beside DSD SDIF-2. Press the Set button to select it.

There will be a noticeable delay while the DSD code loads, then the screen will change back to the Sample Rate Conversion menu. The dCS 974 will automatically detect either SDIF-2 or SDIF-3. Proceed to Step 2.

Connecting to a DSD Quad source

do this: Check that your source equipment is capable of DSD Quad operation.

do this: Connect the AES 1 output on your source equipment to the AES 1 input on the dCS 974 rear panel, the AES 2 output to the AES 2 input, the AES 3 output to the AES 3 input and the AES 4 output to the AES 4 input, using four XLR cables. Ensure the cables are connected in the correct order.

do this: Press the → button twice to enter first the Sample Rate Conversion menu, then the Audio Input Select menu. Use the rotary control to scroll down the list until the cursor is beside DSD Quad. Press the Set button to select it.

There will be a noticeable delay while the DSD code loads, then the screen will change back to the Sample Rate Conversion menu. Proceed to Step 2.

Manual part no: DOC1241121A1 Page 12 Document No: OS-MA-A0124-112.1A1

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