Allen&Heath GL4800 USER GUIDE - Manual (Page 54)

54 GL4800 User Guide
Stereo In-Ear Monitoring
The LR mix and/or the matrix can be used to feed a stereo in-ear monitoring system, often
preferred by lead performers. Using LR, a more precisely balanced mix can be created
using the channel faders and pan controls. It is usual to plug limiters into the LR inserts to
avoid possible hearing damage to the performer. Check the in-ear mix using the stereo
headphones or by feeding the local monitor output to a duplicate in-ear system.
Using the Groups and Mono in Monitor Mode
Groups 1 to 8 and L-R are available from their respective XLR outputs and inserts. In
monitor mode they are controlled on the small faders as the auxes are reversed on to the
main faders. The post-fade outputs can be monitored using AFL and checked on the main
meters by selecting the meter switches to SML. The mono mix M has no dedicated output
but has an insert and is accessed through the matrix.The LR outputs are used as previously
described to feed the stereo sidefills or in-ear monitor system. However, the 8 groups are
available as subgroups to LR, feeds to the matrix, recording sends, effects sends or
additional monitor outputs :
SUBGROUPS TO LR - The groups always feed the pan control and LR, M routing
switches. By selecting LR you can create stereo or mono subgroups to the LR
sidefills or in-ear monitor.
FEEDS TO THE MATRIX - The groups, LR and M always feed the matrix send
controls pre or post fader as selected. The 4 matrix outputs can be used for
recording, effects, additional local monitoring and so on. Note that the mono mix is
available through the matrix.
EFFECTS SENDS - Use the group outputs (XLR) or matrix outputs (jack) for effects
sends. These can be returned to the monitors through the stereo input channels.
ADDITIONAL MONITOR OUTPUTS - The groups can feed additional monitors if
required. Balanced XLRs drive the amplifiers and you can patch the graphics into
the inserts. The group signals follow the channel fader and pan controls and so
could be used to set up additional stereo in-ear monitors.
MULTITRACK RECORDING - The groups outputs can be connected to a
multitrack to record the show independent of the monitors if required. The output
level can be separately adjusted to match the multitrack operating level by selecting
output trim ENABLE.
Recording From the Monitor Console
The GL4800 provides the unique facility to record the show from the monitor console
rather than additional dedicated recording console. This significantly adds to the value of
the service offered to the performers in situations where the front-of-house engineer is
overworked or budget and time are tight.
MONO - Record from the mono mix through the matrix.
2-TRACK - Record from the LR mix with full fader and pan control.
MULTITRACK - Record as many tracks as you require from the groups and
channel direct outputs, all with level trim.
Monitor the recording using the stereo headphones and local speaker monitor
independent of the monitor listen wedge.