10. Ground separating switch
ON means connecting apparatus ground with case, OFF means apparatus ground
isn't connecting with case(mainly used for decreasing noise when system allocates).
11. Hi pass selecting switch
Under ON state, can filter infrasonic wave below 30Hz, and protect bass unit effectively.
12. mode selecting switch
The switch supplies three operation modes, parallel, stereo and bridge.
Please select according to requirement.
1) Parallel mode:
Under the mode, there are one solo channel input, and two channels output; that is,
signals that input to CH A or CH B, can be output from CH A and CH B. Volume is
controlled by volume knob of each channel.
2) Stereo mode:
Under the mode, CH A and CH B operate separately. Signals that input from CH A,
outputs from CH A; Signals that input from CH B, outputs from CH B. Volume is
controlled by volume knob of each channel.
3) Bridge mode:
Under the mode, there are one solo channel input, and one solo channel output;
signal that inputs from CH A, and outputs from CH A+, CH B+ or bridge output
socket. The volume is controlled by CH A volume control knob. Turn down CH B
knob to lowest to avoid cross talk. Specific operation, please refer to chapter 4
of the manual.
R
E
K
A
E
R
B
T
I
U
C
R
I
C
T
E
S
E
R
O
T
S
S
E
R
P
1
1
2
2
3
3
1
1
2
2
3
3
5
9. audio input/output connector
CHA and CHB electric balance COMBO (compliance XLR and 1/4"), terminal
block input connectors, used for connecting external audio signal.
These connectors internal parallel, can receive balanced and unbalanced audio
signal. The amplifier adopts low noise electric balanced circuit, wide dynamic
scope make it can receive signal of any audio level.
1
1
2
2
3
3
+
SHIELD
INPUT FROM
SOURCE
1+
2-
2+
1-
CH A-
CH A+
1+
2-
2+
1-
CH A+
CH B+
1+
2-
2+
1- CH B-
CH B+
CH A Bridged CH B
1
1
2
2
3
3
+
INPUT FROM
SOURCE
SHIELD
+
+
PIN 1+
PIN 1-
PIN 1+
PIN 1-
How to connect stereo mode?
Under stereo mode, CHA and CHB work separately, Signals that input from CHA,
outputs from CHA; Signals that input from CHB, outputs from CHB. Volume is
controlled by volume knob of each channel. Please set mode selecting switch to
the middle position (STEREO) before stereo mode operating.
For further information, please refer to following diagram:
input connection hint
Unbalanced
Balanced
CH B
CH A
CH A
CH B
unavailable
BRIDGE
STEREO
PARALLEL
(solo channel)
8
