ALLEN & HEATH GL4800 User Manual page 51

Live 2-Track Recording
A simultaneous stereo recording can be made of the performance by feeding additional
console outputs to a 2-track such as a cassette or DAT recorder. The GL4800 offers
several methods depending on the application. In each case a separate output level trim is
provided so that you can match the console to the operating level of the recorder, usually
+4dBu (high level) or -10dBV (low level). AFL is provided so that the recording level can be
checked independent of the live mix :
1. Use the LR2 outputs. This gives you separate control of the left and right signals
to adjust for any imbalance in the mix. Select POST if you want the recording to
follow the faders. Select PRE to record independent of the faders.
2. Use the MATRIX outputs if you want the recording mix to be different to the LR
mix. This is often the case in live sound where the LR speakers supplement the
natural sound generated by acoustic instruments or the 'back line' sound from the
musicians own amplifiers. Typically, the LR mix may have plenty of vocals, effects
and drum kit but be noticeably lacking in guitar and other instrument groups. Boost
the content of these by raising the related group to matrix sends.
3. Use spare AUX sends when you are already using the LR2 and MATRIX outputs,
such as in a multi-speaker system. The recording mix can be completely different to
the live mix (PRE), or set up to follow the faders (POST).
Monitoring the 2-Track Recording
Plug the 2-track recorder outputs into the console 2-TRACK RETURN sockets. You can
check the recording using headphones or the local monitor system by pressing 2-track
STEREO PFL. The L, R and M meters show the stereo and mono levels of the recording.
Press MONO to listen to the mono compatability of the recording.
2-Track to LR Replay
You can replay your stereo recording through the LR speaker system by pressing REPLAY
TO LR. The signal is sent to the outputs pre-insert and pre-fader. The 2-track return may
also be used to replay background music to the PA during intermission. Set up a mute
group to turn off the channels, groups and aux sends during replay. This lets you leave the
faders set ready for the next act.
Live Multitrack Recording
It is increasingly common for the performers to commission multitrack recordings of the
show for their own purposes.
multitrack recording whether operating as a front-of-house or on-stage monitor console.
Later, and without the distraction of the live sound, the multitrack can be mixed down to
stereo and effects added to produce a more balanced mix.
Record from the subgroups. Select
output level control to adjust for the operating level of the multitrack. Select PRE if
you want to record independent of the group fader which is being used to adjust the
subgroup level to LR.
Record from individual channels. Select
channel signal to the multitrack. This also lets you select PRE or POST channel
fader depending on your preference.
With these facilities, the GL4800 is a fully capable multitrack recording console in its own
right, offering the live sound engineer the ability to create his own studio quality recordings.
GL4800
User Guide
The GL4800 provides the facility for simultaneous
ENABLE to enable the separate group
DIR OUT for output level trim of the
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