Setup Front Panel Rear Panel
Stereo Operation
Parallel Mono Operation
Specifications
Operating Instructions
Mono Bridge Operation
U S E R I N S T R U C T I O N S
page 8
CH.2
CH.1
CH.1
INPUT
Mono Bridge Operation
Follow these instructions to bridge the unit's output. Bridging the amplifier converts the unit to a monophonic or
single channel. The amplifier can be used with 4 Ohm or higher loads only in Mono Bridge mode. This mode is
used to provide a higher voltage with greater headroom to your speaker. Before setting your amplifier for Mono
Bridge operation.
Make sure that your speaker can handle the high power level provided by the amplifier in Mono Bridge mode.
1. With the power off, set the OPERATION MODE SWITCH
（
14
）
to the BRIDGE position. When the power is on, the BRIDGE LED
（
4
）
on the front panel will light. If
the LED does not illuminate, you have the switch in the wrong position. Correct before continuing.
2. With the power off, connect your input cables to channel 1 input only using the either the female XLR INPUT JACK
（
11
）
or male XLR INPUT JACK
（
11
）
of channel
1. The other channel 1 input can be used to link to an additional amplifier.
3. Connect the loudspeaker to the BRIDGE SPEAKER OUTPUT
（
9
）
only. The total speaker load must be at least 4 Ohms or above. If you try to operate at a lower
impedance, the amplifier will go into protection mode and stop operation until you correct the load conditions.
4. With the CHANNEL 1 LEVEL CONTROL
（
3
）
set to zero
（
fully counterclock-wise
）
, switch the power on. Apply a signal to the input. The level of the input signal
should be as high as you will ever need it to be. This way, it will be as high above the amplifier's noise floor as possible, ensuring an excellent performance and signal
to noise ratio. Adjust the LEVEL CONTROL
（
14
）
for channel 1 to achieve the desired maximum listening level.
CAUTION
：
Before you begin, make sure your amplifier is disconnected from the power source, with power switch in the “off” position and all level controls
turned completely down (counter clockwise).
!
NOTE :
When the clip LEDs light, there is distortion present in the amplifier's output section. if a clip LED remains on or flashes repeatedly, reduce the signal level
by lowering the input level control for channel 1 or reduce the level at the source. During Mono Bridge operation, the channel 2 level is inactive, however, both
channels LEDs will flash simultaneously and show output conditions.
PS-3000/PS-4000/PS-5000
UNiKA
