Ac Power Distribution; Wiring Recommendations; Input Wiring; Analog And Aes/Ebu Wiring - Crown I-Tech I-T6000 Application Manual

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1.3 AC Power Distribution

All I-Tech amplifi ers are rated using a 20amp power cord per UL/CSA/EC safety stan-
dards. I-Tech's innovative PFC technology allows I-Tech to draw current from the mains
in a more controlled and effi cient way providing greater power on a single 20 amp
breaker. A single I-tech amplifi er can be run on a dedicated 20-amp circuit. A profes-
sional power distribution system is ideal when using a rack or multiple racks of I-Tech
amplifi ers. A larger system may use a 200 Amp, 120VAC three-phase, 12-cricuit-distri-
bution rack, which provides dedicated 20-amp circuits for each of the amplifi ers in the
system.
Note: Most power distribution systems use heavy duty thermal /magnetic circuit break-
ers.

2 Wiring Recommendations

2.1 Input Wiring

Your I-Tech amplifi er will come with either analog and AES/EBU input signal connec-
tions or with integrated IQ Network and CobraNet™ connections.

2.1.1 Analog and AES/EBU Wiring

Figure 2.1 shows connector pin assignments for balanced analog wiring or AES/EBU
digital wiring.
IMPORTANT: The use of standard analog cable with AES/EBU will result in diminished
performance. For best results, 110 ohm shielded twisted-pair cable for AES/EBU
signals is highly recommended. Cable lengths of up to 100 meters are easily supported
with 110 ohm shielded
twisted-pair cable. Longer
line distances are possible
with the use active repeat-
ers, and/or transmission
and receiver equalization.
Refer to the AES Standard
for AES/EBU signal wiring
for more information (link
in the Appendix section of
this guide).

2.2 Output Wiring

Your I-Tech amplifi er includes both industrial-grade (50A) binding post and Neutrik®
Speakon® NL4MP output connectors. In order to maximise power transfer to the
loudspeaker and minimize line
loss, we recommend using 10
AWG or larger professional-grade
speaker cable. The chart in Figure
2.2 shows line losses per 20 feet
of cable. Note that amplifi er output
impedance has effect on line loss,
and output impedance for I-Tech is
factored into these fi gures.
Section 2: Wiring Recommendations
Application Guide
Figure 2.1
Balanced Analog and
AES/EBU Wiring
Figure 2.2
I-Tech Line-Loss