GR4 User Guide
19
AP10223 Issue_2
7.4
Programming Parameters
The GR4 has a total of 7 parameters (shown in Table 1) which are configurable by the
installer/user.
Each parameter has four pre-defined values which can be stepped through and set as required.
Changing a Parameter Step by Step Guide- Ensure amplifiers/powered speakers are
switched off prior to powering the unit up or down.
To enter Programming Mode;
1.
Press and hold Z1 Mic & Music “SEL” switches
whilst powering on the
GR4
2.
Power LED
will flash continuously whilst in Programming Mode.
Changing a parameter;
1.
Use Z2 Mic & Music “SEL” switches
to toggle through the parameter to
change
as shown in Table 1.
2.
Use Z1 Mic & Music “SEL” switches
to toggle through the value
required
as shown in Table 1.
3.
The new parameter value is stored automatically. The parameter LED will flash
quickly during the save procedure.
Exit Programming Mode;
1.
Power cycle the unit
to return to normal operation, LED will remain solid
Table 1 – Showing Parameter/Value/LED State matrix. (Factory settings highlighted).
Value
1
2
3
4
Parameter
LED
MIC1 Z1
MIC1 Z2
MIC2-4 Z1
MIC2-4 Z2
1 Ducker Attenuation
ST1 Z1
-12dB
-20dB
-30dB
OFF
2 Ducker Hold Time
ST1 Z2
500mS
1.5s
5s
10s
3 Ducker Release Time
ST2 Z1
500mS
1.5s
5s
20s
4 Music Crossfade Time
ST2 Z2
50mS
200mS
500mS
3s
5 Jukebox Attack Time
ST3 Z1
50mS
200mS
500mS
1s
6 Jukebox Hold Time
ST3 Z2
1s
3s
5s
20s
7 Jukebox Release Time
ST4 Z1
500mS
1.5s
3s
10s
