ALLEN & HEATH GL3300 User's Guide download pdf (Page 16)

16 GL3300 USER GUIDE

MATRIX

MUTE GROUPs let you mute a selected combination of channels with a single key

press. Applications include muting unused channels when mixing different bands,

muting all channels except 2-track playback during intermission, muting effects,

muting a bank of radio mics during an instrumental number, muting stage mics during

scene changes etc....

The GL3300 includes 4 MUTE GROUPs controlled by a bank of 4 large illuminated

buttons between the Group and L-R faders. These latching switches may be selected

one at a time or together.

To set up a mute group, press one of the mute group selector switches M1, M2, M3,

M4 on the input channels. Now press the corresponding mute group switch in the

master section. The mute group switch and the channel mute switch will illuminate and

the input channel signal will be muted.

An input channel can be a member of more than one mute group by simply pressing

another channel mute group selector switch.

Two matrix outputs A and B are provided. These are additional outputs on TRS jacks

controlled by 60mm smooth travel FADERS and with AFL monitoring to check the

post fader signal. The matrix mix is created from the 8 groups, L and R by adjusting

the MTX level controls. These signals are fed post their respective faders. Note that

in 'MONITOR MODE' (REVERSE selected) the matrix is still fed from the groups

(now routed via the aux masters). External inputs to the matrix are available from

the adjacent stereo returns. The matrix outputs can be balanced by fitting the balance

option, refer to the Internal Link Options section in this user guide.

The matrix outputs satisfy a host of applications. Traditionally the matrix has been

used to feed additional speaker systems such as auditorium balcony speakers. These

are fed through delay units to compensate for acoustic delay due to the distance from

the main speakers. Here the balance of the mix may be slightly different from the

main speakers, for example vocal light to keep the vocals nearer the stage. Adjusting

the balance of the groups to the matrix achieves this. Another example is live sound

recording where the PA mix may be necessarily lacking in bass due to the acoustic

output of the orchestra or 'backline'. Compensate for this by recording from the

matrix with the group feeds adjusted for an even recording balance.

MUTE GROUPS

GROUP

MUTE

1 2 ... 11 12 13 14 15 16 17 18 19 20

No comments

ALLEN & HEATH GL3300 User's Guide Page 16