I-Tech Series Power Amplifiers
Operation Manual page 15
3 Operation
Figure 3.2 Back Panel Controls and Connectors
3.5 Back Panel Controls, Indica-
tors and Connectors
A. Fans
Provide front-to-back forced airflow for cooling.
ANALOG INPUTS SECTION
B. Balanced Analog XLR Inputs
A 3-pin female XLR connector for each channel.
C. Balanced Analog XLR Loop-Through
Outputs
Two 3-pin male XLR output connectors are pro-
vided (one per channel). The signal at these
connectors is paralled with the input signal for
feeding the input signal to other amplifiers.
OUTPUTS SECTION
D. 4-Pole Speakon Output Connectors
Two high-current, 50A Neutrik
®
Speakon
NL4MLP (mates with NL4FC and NL4), one per
channel. Class 2 output wiring required.
These two connectors accept 2-pole or 4-pole
Speakon connectors. See Figures 2.5 through
2.10 and Tables 1, 2 and 3 for connector wiring.
The top Speakon connector is wired for both
channels so it can be used for bridge-mono
wiring or for stereo wiring of two speakers to a
single Speakon connector.
E. Binding Post Output Jacks
One pair per channel of high-current, 60A
color-coded binding posts. Accepts banana
plugs, wire or spade lugs.
F. Power Cord Connector
Standard 20 amp IEC inlet. Voltage range is
indicated above IEC inlet.
G. Reset Switch/Circuit Breaker
If the current draw of the amplifier exceeds safe
limits, this breaker automatically disconnects
the power supply from the AC mains. The
switch resets the circuit breaker.
DIGITAL INPUTS SECTION
H. AES/EBU Digital Input
This 3-pin female XLR connector accepts a dig-
ital signal in the AES/EBU format.
I. AES/EBU Digital Loop-through Output
Male XLR active/re-clocked AES/EBU digital
loop-through. The signal at this connector
duplicates the digital input signal for feeding
the input signal to other amplifiers.
It is not recommended to loop through more
than four amplifiers. If larger distribution of AES
is needed, the use of an AES distribution ampli-
fier is recommended.
G
F
A B
C
D
H
I
J
K
L
E A
CERTIFIED ONLY AT
120 V IN CANADA
NETWORKING SECTION
J. Preset Indicator
Yellow LED flashes to signal the number of the
current preset if active.
K. Data Indicator
Yellow LED indicates HiQnet or IQ data activity.
Data indicator flashes only when the amplifier is
polled for data, or is polled to see whether it is
online.
L. Network Connector
This Ethernet connector accepts an RJ-45 con-
nector for networking. Built into the connector
is a yellow LINK ACT indicator that shows net-
work activity, and a green 100Mb indicator that
shows a 100Mb network connection.
