OPERATING MODES
STEREO OPERATION :
Connect your inputs into channel one and channel two (also channels three and four for the UA-4000) of the amplifier. Connect
your speakers to the outputs on the rear of the amplifier. Be sure that your front gain controls are turned down to their lowest level (fully counterclockwise). Turn
your amplifier on. Turn your input source level up. Use your front gain controls to regulate the output volume. Be sure not to raise the volume to the clip level,
however an intermittent clip signal is acceptable.
MONO BRIDGE OPERATION (UA-4000 only):
Be sure your amplifier and all other audio equipment are powered down. Press the Bridge button.
Connect input signals to channel one and three. Connect your speaker across the red output binding post on the rear of your amplifier. Turn your equipment on
(your amplifier should always be the last item you turn on). Apply an input source signal to your amplifier. Use the channel one and three gain to regulate your
amplifier output.
PARALLEL MONO (UA-4000 only):
Parallel ties the two channel line inputs together, so that they will both be driven by the same signal, without the
need for external jumpers or wiring. Four amplifier channels will operate independently. Though they carry the same signal, their gain controls affect only their
respective channels, and they both must use their respected speaker outputs. Never attempt to parallel the speaker outputs, this may cause serious damage to
your amplifier! To run in parallel mono mode connect your system as you would if you were going to run in stereo mode. Then press the Parallel button. Be
sure the amplifier is off or the power is disconnected before making any changes.
SUBWOOFER MODE:
This mode sends low frequencies to your speakers without the use of an external cross-over. The subwoofer operation can be
operated in mono only. Set the subwoofer mode switch to the “ON” position. Use the frequency selector to adjust the subwoofer output frequency from 20Hz to
200Hz.
page 8
Figure
12
CH-3 Work as Subwoofer Mode; CH-1/2 Stereo Mode
STEREO FULL RANGE SPEAKERS
MONO SUBWOOFER SPEAKER
SPEAKER IMPEDANCE MINIMUM 2 OHM
UA-3000 Rear Panel
Negative (-) Lead
Positive (+) Lead
Negative (-) Lead
Positive (+) Lead
Negative (-) Lead
Positive (+) Lead
200Hz
20Hz
SUB WOOFER
FREQUENCY
CH 2
CH 1
LIFT
GROUND
CH-1
CH-2
~120VAC 60Hz
1500 WATTS
CH-3
AC INPUT
BREAKER
RESET
INPUT
Balance
Balance
Balance
CH 3
Ext Input
CH 3
SUB ON
BYPASS
EXT INPUT
CH 1 & CH 2
INPUT
SELECT
6
A
M
P
SPEAKER IMPEDANCE MINIMUM 2 OHM
UNiKA
UA-3000/UA-4000
Introduction Front Panel Rear Panel Set Up
Protection Specifications
Operating Modes
Содержание UA-3000
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