Alesis Q20 DJ Equipment User Manual


 
Chapter 5 - Description of Controls
80 Q20 Reference Manual
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.