GRAVIS series rear panel function description:
5
1.Stereo mode
Connection procedure for this mode:
1) Using rear panel dip switches, set the mode to 'STEREO';
2) CH1 and CH2 inputs are independently connected to CH1/CH2 (L/R) outputs of sound source
(such as a mixer, CD player, etc.).
3) There are two ways for output connection:
A. CH1 SPEAKON
（
1+/1-
）
= CH1
（
+/-
）
OUTPUT, CH2 SPEAKON = (1+/1-) = CH2
（
+/-
）
OUTPUT
；
B. Binding post outputs.
Attention: Before plugging the input signal connectors please turn the volume to the minimum to
avoid any noise, which should damage the connected speakers.
~230V/50Hz/4500W
CH1 OUTPUT
CH2 OUTPUT
T12AL 250V
CAUTION:
REPLACE ONLY WITH
SAME TYPE FUSE!
CH1 INPUT
CH2 INPUT
CH1 LINK
CH2 LINK
CAUTION
!
RISK OF ELECTRIC SHOCK
DO NOT OPEN
ATTENTION:
RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
3
3
3
3
CH1
CH2
4
3
2
1
INPUT SENSITIVITY
SOFT
CLIPPING
OFF
2
1
STEREO
PARALLEL
BRIDGE
4
3
CH2
CH1
ON
OPERATION MODE
F U
S E
0.775V
1.0V
32dB
Made in China under license of MONTARBO ELETTRONICA S.r.l - ITALY
1-
-
1+
+
+
-
-
+
OR
OR
+
-
(IN)
(OUT)
(IN)
(OUT)
-
+
-
+
STEREO
4
3
1+
1-
9. Operation mode selector by dip switches allows three settings:
1)Stereo mode: dip switches 3 and 4 are OFF-OFF - CH1 and CH2 have independent inputs and outputs.
Two channels volume are independently controlled.
2)Parallel mode: dip switch 3 is OFF, and 4 is ON CH1 and CH2 use CH1 input signal.
Two channels volume are independently controlled.
3)Bridge mode: dip switches 3 and 4 are ON - CH1 and CH2 use CH1 input signal.
The volume will be controlled by CH1 knob only.
10. Soft clip selector/ DIP Switches 2-1
1) With dip switch 2 is ON and CH1 input signal overloads, the circuit will smoothly limit the waveform.
2) With dip switch 1 is ON and CH2 input signal overloads, the circuit will smoothly limit the waveform.
11. CH2 LINK socket
CH2 LINK socket is male XLR in parallel connection with CH2 female XLR, providing an output signal
similar to the input.
12. CH2 XLR input
This XLR input is a balanced input, to be connected to sound source equipment.
13. CH2 Binding post output
Connect red color binding post to the positive pole of speaker. Connect black color binding post to
the negative pole of speaker.
In bridge mode, connect red color binding post to speaker negative connector.
14. CH2 SPEAKON output
In Stereo or Parallel modes connect the SPEAKON output to the loudspeaker as follows: 1+ to the
positive pole, 1- to the negative pole.Setting the amplifier to bridge mode, this connection is no
longer active.
Stereo mode/parallel mode/ bridge mode
Содержание GRAVIS 24
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