Bridge-Mono Wiring
Let’s assume that you unpacked and installed your amplifier with the proper cool-
ing. If not, see Section 2 in the I-Tech Operation Manual. We’ll also assume that you
will operate the amplifier in Bridge-Mono. Basically you will turn on the amp,
enable Bridge-Mono mode with the LCD Control Screen, turn off the amp, wire it,
and turn it back on.
1.
Be sure that no cables are connected to the amplifier. Plug the amplifier power
cord into the amplifier, then into an AC outlet.
2.
Turn on the amplifier power switch on the front panel. The LCD Control Screen
will light up (Figure 4).
3.
Under the LCD Control Screen, press the
Menu/Exit
button. Press the
Next
button until you see
Output Mode
on the screen.
4.
Turn either Encoder knob to select BRIDGE MONO. Press the knob to confirm
your choice. Press the
Menu/Exit
button. Turn down (CCW) both Level controls
(Encoders) until you reach maximum attenuation.
5.
IMPORTANT: Turn off the amplifier. Unplug its power cord from the
AC outlet. The amplifier must be grounded when plugged into AC
power.
6.
See Figure 5. Connect a cable from your mixer output to the amplifier’s Chan-
nel-1 XLR input connector.
7.
Using Class 1 wiring, connect the speaker cable either to the amplifier’s top
Speakon connector (terminals 1+ and 2+, Figure 6) or across the red binding posts
of both channels (Figure 5). Do not use the black binding posts in Bridge-Mono.
8.
Plug the amplifier’s power cord into the amplifier, then into an AC outlet. Turn
on the front-panel power switch.
9.
Play a program through your mixer. Set its level to peak at 0 maximum on the
mixer meters. Gradually turn up (CW) the amplifier’s Encoder-1 knob (Level con-
trol) until you reach the desired volume (Figure 4). Encoder-2 has no effect in
Bridge-Mono mode.
Figure 4. The LCD
Control Screen
Figure 6. Wiring a Speaker to
the Top Speakon Connector for
Bridge-Mono Operation
Figure 5. Rear Panel Connections
for Bridge-Mono Wiring
CAUTION – SHOCK HAZARD:
Potentially lethal voltages exist at
the output connectors when the
amplifier is turned on and is pass-
ing a signal.
I-TECH QUICK-START GUIDE
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