Crown I-Tech 4x3500HD DriveCore Series Operation Manual page 5

2 Setup
2.3.2 Choose Input Wire and Connectors CAUTION – SHOCK HAZARD: Potentially lethal voltages
exist at the output connectors when the amplifier is
Crown recommends using pre-built or professionally wired,
turned on and is passing a signal.
bal anced line (two-conductor plus shield), 22-24 gauge cables
and connectors. Use 3-pin male XLR connectors.
Using the guidelines below, select the appropriate size of wire
based on the distance from amplifier to speaker.
Unbalanced line may also be used but may result in noise over
long cable runs.
Distance
up to 25 ft.
Figure 2.5 shows connector pin assignments for balanced analog
26-40 ft.
wiring or AES3 digital wiring. The use of standard analog cable
41-60 ft.
with AES3 will result in diminished performance. For best results,
61-100 ft.
110 ohm shielded twisted-pair cable for AES3 signals is highly
recommended. Figure 2.6 shows connector pin assignments for
unbalanced analog wiring.
If multiple connectors are needed for AES3 distribution from a
single AES3 source, the following shows the number of AES
connections in parallel based on AES3 switching frequency.
Frequency # of Connections
96kHz 4 AES3 Pairs
48kHz 8 AES3 Pairs
Figure 2.5
Balanced Analog Input Connector Wiring or
44.1kHz 8 AES3 Pairs
AES3 Digital Connector Wiring
***Please note with good quality 110 ohm shielded digital cable,
it is possible to obtain a higher number of connections than stated
here. It is up to the user to test this based on their use case. The
connections stated here are based on worst case analysis.
NOTE: Custom wiring should only be performed by qualified
per sonnel.
2.3.3 Choose Output Wire and Connectors
Figure 2.6 Unbalanced Analog Input Connector Wiring
Crown recommends using pre-built or professionally wired, high-
quality, two-, four-, or eight-conductor, heavy gauge speaker wire
and connectors. Use Class 2 output wiring. You may use a 4-pole
®
Speakon connector (Figure 2.7) or banana plugs, spade lugs, or
bare wire for your output connectors (Figure 2.8). To prevent the
possibility of short circuits, wrap or otherwise insulate exposed
loudspeaker cable connectors.
page 8
I-Tech HD DriveCore Series Power Amplifiers
Wire Size
16 AWG
14 AWG
Figure 2.7
12 AWG
®
Left: Speakon Output Connector on Back Panel
10 AWG
®
Right: Speakon Cable Connector
Figure 2.8
Binding Post Connections
I-Tech HD DriveCore Series Power Amplifiers
2 Setup
101-150 ft. 8 AWG
151-250 ft. 6 AWG
CAUTION: Never use shielded cable for output wiring.
2.3.4 Stereo Mode Wiring
Typical input and output wiring is shown in Figure 2.9.
IMPORTANT: Turn off the amplifier and unplug its power cord.
INPUTS: Choose one of these options:
• Connect analog input wiring for all channels.
• Connect AES3 digital signal to the AES3 connectors.
OUTPUTS: Maintain proper polarity (+/–) on output connectors. Use
Class 2 output wiring.
Figure 2.9 shows how to wire stereo speakers to the binding posts.
Con nect Channel 1 loudspeaker's positive (+) lead to Channel 1 positive
(red) terminal of amp; repeat for negative (–). Repeat Channel 2 wiring as
for Channel 1.
To wire stereo speakers to the Speakon ® connectors, use this method:
Table 1
Stereo Wiring Method 1: Use Top Speakon
PIN 1+ 1–
CH 1+ 1–
Channel 1 Channel 1
Loudspeaker Loudspeaker
Figure 2.10 Wiring Two Stereo Speakers
to the Top Speakon
Operation Manual Operation Manual
I-TECH 4x3500 | 2300W
CAUTION – TO REDUCE THE RISK
OF ELECTRIC SHOCK, GROUNDING
MUST BE MAINTAINED.
ASSEMBLED IN USA
AES 1+2
®
Only
AES 3+4
2+ 2–
Figure 2.9
System Wiring,
2+ 2– 2 x Stereo Mode
Channel 2
Loudspeaker
®
Connector
Channel 1 Channel 2
ANALOG CH1 OUTPUTS CH2
CH1 CH2 CH3 CH4 BRIDGE
INPUTS DUAL DUAL
CH NETWORK
3/4
CH DATA PRESET DUAL BRIDGE DUAL
1/2 DIGITAL INPUT AES3 COND. LINK/ CH3 CH4
ACT.
Channel 3 Channel 4
page 9