Operation Manual
I-Tech HD DriveCore Series Power Amplifiers
page 8
I-Tech HD DriveCore Series Power Amplifiers
Operation Manual
page 9
2.3.2 Choose Input Wire and Connectors
Crown recommends using pre-built or professionally wired,
bal anced line (two-conductor plus shield), 22-24 gauge cables
and connectors. Use 3-pin male XLR connectors.
Unbalanced line may also be used but may result in noise over
long cable runs.
Figure 2.5 shows connector pin assignments for balanced analog
wiring or AES3 digital wiring. The use of standard analog cable
with AES3 will result in diminished performance. For best results,
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
44.1kHz
8 AES3 Pairs
***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
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.
CAUTION – SHOCK HAZARD: Potentially lethal voltages
exist at the output connectors when the amplifier is
turned on and is passing a signal.
Using the guidelines below, select the appropriate size of wire
based on the distance from amplifier to speaker.
Distance Wire Size
up to 25 ft. 16 AWG
26-40 ft. 14 AWG
41-60 ft. 12 AWG
61-100 ft. 10 AWG
Figure 2.5
Balanced Analog Input Connector Wiring or
AES3 Digital Connector Wiring
Figure 2.6 Unbalanced Analog Input Connector Wiring
2 Setup
Figure 2.8
Binding Post Connections
Figure 2.7
Left: Speakon
®
Output Connector on Back Panel
Right: Speakon
®
Cable Connector
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:
2 Setup
Figure 2.10 Wiring Two Stereo Speakers
to the Top Speakon
®
Connector
PIN
1+
1–
2+
2–
CH
1+
1–
2+
2–
Stereo Wiring Method 1: Use Top Speakon
®
Only
Table 1
Channel 1
Loudspeaker
Channel 1
Loudspeaker
Channel 2
Loudspeaker
Figure 2.9
System Wiring,
2 x Stereo Mode
Channel 2
Channel 4
Channel 3
Channel 1
Channel
1
AES 1+2
AES 3+4
Channel
2
Channel
3
Channel
4
ANALOG
INPUTS
CH1
CH2
CH3
CH4
CH
3/4
CH
1/2
DIGITAL INPUT AES3
NETWORK
COND.
DATA
PRESET
LINK/
ACT.
I-TECH 4x3500 | 2300W
ASSEMBLED IN USA
CAUTION – TO REDUCE THE RISK
OF ELECTRIC SHOCK, GROUNDING
MUST BE MAINTAINED.
OUTPUTS
CH1
CH2
DUAL
BRIDGE
DUAL
CH3
CH4
BRIDGE
DUAL
DUAL
RE
G.
U.
S.
PA
T.
OF
F.
5,
65
7,
21
9
6,
50
4,
34
8
6,
90
9,
321
7,
28
3,
379
7,
55
7,
62
2
7,
91
9,
998
7,
77
8,
32
4
7,
521
,9
36
CL
ASS
2
OU
TPUT
WI
RING
