Front Views & Rear Views
Introduction
Unpacking
Installation and Mounting
Front Panel
Rear Panel
Mode Selection
Protection
Specifications
Operation
Operation
Connecting Power / Circuit Size Requirements
X Series amplifier power requirements are rated at:
a) "idle”
b) 1/8th power ("typical" music conditions)
The maximum power current draw rating is limited only by the rear circuit breaker (2U MODEL), a rear panel
Breaker and internal fuse are used for(3U model) Consult the specifications section for figures on the current that
each amplifier will demand. Make sure the mains voltage is correct and is the same as that printed on the rear of
the amplifier. Damage caused by connecting the amplifier to improper AC voltage is not covered by any warranty.
Unless otherwise specified when ordered, UNIKA amplifiers shipped to customers are configured as follows:
North America
Europe
Asia
120VAC / 60Hz
230VAC / 50Hz
220VAC / 50Hz
NOTE:
Always turn off and disconnect the amplifier from mains voltage before making audio connections. Also,
as an extra precaution, have the attenuators turned down during power-up.
Cooling System and Requirements
X Series amplifiers use a twin-tunnel forced-air cooling system to maintain a low, even operating temperature.
Drawn out by dual 45 cubic feet-per-minute (CFM) fans on the rear panel, air flows from the front grill and
through the cooling fins of the channel heat sinks (dissipating power transistor heat), then exhausts through the
back panel ports. The "intelligent" variable-speed DC fans are controlled by heat sink temperature sensing
circuits. When the amplifier is turned on, the fans briefly "rev up," then slow to an idle; this indicates that the
temperature sensing circuits are operating normally. The fan speed increases only as required by heat sink
temperatures, keeping fan noise to a minimum. Under extreme thermal load, the fans will force a very large
volume of air through the heat sinks. If either heat sink surpasses the maximum allowed temperature, the
sensing circuit will shut down the output, no signal output to the load. If the power transformer overheats,
another sensing circuit shut down both channel output until the transformer cools to a safe temperature.
IMPORTANT:
To ensure optimum cooling, periodically clean the amplifier fan filters. Also make certain that there is
enough space around the back of the amplifier to allow the cooling air to escape. If the amplifiers rack-mounted, do
not use doors or covers on the front of the rack, the exhaust air must flow out without resistance. If the amplifiers are
to be housed in racks with closed backs, allow at least one (1) standard rack space of opening in the front of the
rack for every four amplifiers.
Connecting Inputs
Use either the XLR input connectors on the rear to supply audio signals to your UNIKA X Series amplifier. Both
connectors accept balanced and unbalanced audio connections. (The X Series amplifiers are configured
standard with "Pin 2 hot" on XLR inputs. Please note that some other Audio amplifiers are configured with "Pin 3
hot"). The unused connector can be used to jumper the audio input to another amplifier input.
Connecting Outputs
Speakers are connected using Output Binding Posts or Speakon connectors, For more information, see the
Mode Selection sections.
Australasia
South America
Japan
240VAC / 50Hz
120VAC / 60Hz or 220VAC / 50Hz
100VAC / 50Hz
c) 1/3rd power ("continuous" music conditions)
d) maximum rated power (under limited).
Connecting amplifier outputs to oscilloscopes or other test equipment while the amplifier is in bridged
mode may damage both the amplifier and test equipment!
!
page 8
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiK A
P R O F E S S I O N A L AU D I O
