Chapter 5 - Description of Controls

Digital In

- ADAT Digital Audio In

This is an EIAJ fiber optic jack which connects to the ADAT optical interface for receiving two of any eight digital audio channels. See Chapter 7 for more information.

Digital Out

- ADAT Digital Audio Out

This is an EIAJ fiber optic jack which connects to the ADAT optical interface for transmitting on two of any eight digital audio channels. See Chapter 7 for more information.

S/PDIF In

- S/PDIF Digital Audio In

This is a phono jack which connects to the S/PDIF digital out of a device (digital mixer, DAT machine, etc.) for recieving digital audio. See Chapter 7 for more information.

S/PDIF Out

- S/PDIF Digital Audio Out

This is a phono jack which connects to the S/PDIF digital in of a device (digital mixer, DAT machine, etc.) for transmitting digital audio. See Chapter 7 for more information.

Left/Right In - Analog Audio In

These are combination 1/4" TRS phone and XLR jacks which connect to analog source devices such as the effects sends of mixing consoles. These are true stereo balanced inputs and are represented by the IN Block on the front panel LCD display. They may be used with nominal input levels from -20dBV (guitar level) to +4dBu.

Left/Right Out - XLR Analog Audio Out

These are balanced XLR jacks which connect to analog devices such as the effects returns on a mixing console. These are true stereo balanced outputs and are represented by the OUT Block on the front panel LCD display. These outputs are servo balanced, meaning that if one leg of the signal is grounded, the other leg will automatically increase 6dB to maintain the nominal output level.

Left/Right Out - 1/4” Analog Audio Out

These are 1/4" TRS phone jacks which duplicate the XLR outputs for connection to devices which use 1/4Ó jacks. These outputs are servo balanced, meaning that if one leg of the signal is grounded, the other leg will automatically increase 6dB to maintain the nominal output level. Only one set of output jacks should be used at a time for optimal performance.

80

Q20 Reference Manual