Stereo Wiring - Crown I-Tech HD Quick Start Manual

Stereo Wiring

Let's assume that you unpacked and installed your amplifi er with the proper cooling. If
not, see Section 2 in the manual. We'll also assume that you will operate the amplifi er in
stereo. If you want to operate your amplifi er in bridge-mono, see the section below.
1. IMPORTANT: Make sure that the amplifi er is off. Unplug its power cord
from the AC outlet.
2. See Figure 1. Connect two cables from your mixer output to the amplifi er's XLR input
con nectors.
3. Using Class 2 wiring, connect speaker cables either to the amplifi er's Speakon
connectors (as in Figure 2) or to the binding posts (as in Figure 1.)
4. Turn down your mixer master faders. Plug the power cord into the amplifi er and then
into a grounded AC outlet. The amplifi er must be plugged into a grounded AC
outlet. Turn on the front-panel power switch. The LCD Control Screen will light up
(Figure 3).
5. Turn both Encoder knobs fully down (CCW) until the minimum dB gain is displayed.
6. Play a program through your mixer. Set its level to peak at 0 dB or 0 VU maximum on
the mixer meters. Gradually turn up (CW) the amplifi er Encoder knobs (Level controls) to
the desired volume.
7. If the SPL is too high, press Menu/Exit, then press Next until you see ADVANCED
MENU. Push an Encoder knob. Press Next until you see MAXIMUM ANA LOG INPUT.
Press an Encoder knob so the display reads 21 dBu. Press Menu/Exit twice. Press Next.
CH1 Sensitivity will be displayed. Gradually turn up (CW) the Encoder knobs to the
desired volume. Press Exit when done.
Warning: Only connect to networks that remain inside the building.
CAUTION – SHOCK
HAZ ARD: Potentially
lethal voltages exist at
the output connectors
when the amplifi er is
turned on and is passing
a signal.
Bridge-Mono Wiring
Let's assume that you unpacked and installed your amplifi er with the proper cooling. If not,
see Section 2 in this manual. We'll also assume that you will operate the amplifi er 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 amplifi er. Plug the amplifi er power cord into
the amplifi er, then into an AC outlet.
2. Turn on the amplifi er power switch on the front panel. The LCD Control Screen will light
up (Figure 3).
3. Under the LCD Control Screen, press the Menu/Exit button. Press the Next button
until you see Amp Mode on the screen.
4. Turn an Encoder knob until you see Bridge Mono. Press the knob. You will be prompted
to confi rm your choice. Press the Menu/Exit button.
5. IMPORTANT: Make sure that the amplifi er is off. Unplug its power cord
from the AC out let.
6. See Figure 4. Connect a cable from your mixer output to the amplifi er's Channel-1 XLR
input connector.
7. Using Class 2 wiring, connect the speaker cable either to the amplifi er's top Speakon
connector (terminals 1+ and 2+, Figure 5) or across the red binding posts of both channels
(Figure 4). Do not use the black binding posts in bridge-mono mode.
8. Turn down your mixer master faders. Plug the power cord into the amplifi er and then
into a grounded AC outlet. The amplifi er must be plugged into a grounded AC
outlet. Turn on the front-panel power switch. The LCD Control Screen will light up
(Figure 3).
9. Turn down both Encoder knobs (Level controls) all the way.
10. Play a program through your mixer. Set its level to peak at 0 dB or 0 VU maximum on
the mixer meters. Gradually turn up (CW) the Encoder knobs to the desired volume.
Note: If the SPL is too high, see Step 7 under Stereo Wiring. Warning: Only connect to
networks that remain inside the building.
CAUTION – SHOCK HAZ ARD:
Potentially lethal voltages exist at the
output connectors when the amplifi er
is turned on and is passing a signal.
®
Wiring Two Speakers to Two
Speakons for Stereo Operation
(over)
From mixer Ch.1 and Ch. 2
From mixer Ch.1 and Ch. 2
From mixer Ch.1 and Ch. 2
From mixer Ch.1 and Ch. 2
Figure 1 Rear-panel Connections for Stereo Wiring
Figure 2
Channel 1
Loudspeaker
Bottom
Speakon
(Channel 2)
From mixer Ch.1
From mixer Ch.1
From mixer Ch.1
From mixer Ch.1
Figure 4 Rear Panel Connections
for Bridge-Mono Wiring
Figure 5 Wiring a Speaker to the Top Speakon
Connector for Bridge-Mono Operation
To Ch. 1 speaker
+
To Ch. 1 speaker
_
To Ch. 1 speaker
To Ch. 1 speaker
_
To Ch. 2 speaker
To Ch. 2 speaker
To Ch. 2 speaker
+
To Ch. 2 speaker
Top Speakon
(Channel 1)
Channel 2
Loudspeaker
Figure 3
_
To speaker
To speaker
To speaker
+
To speaker
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