Manual
PS Series Amplifier
PS-5000 PS-4000 PS-3000
Professional Amplifiers
for Live Sound
w w w . u n i k a . c o m . t w
UNiKA
8
◆
Bridge LED
（
11
）：
The bridge LED will light when you have set the rear panel MODE SWITCH
（
2
）
for mono bridge operation. Always mark sure that this switch is in the
correct position and that all speaker connections have been made correctly for
the mode of operation you wish to use before powering up the amplifier.
◆
Signal LED
（
12
）：
The signal LED indicates a -30db point relative to the clipping point, regardless
of the mains voltage and the connected load. This LED gives the user a better
control of the remaining headroom of a channel or a complete system.
◆
Clip LED
（
13
）：
The clip LED indicates the exact clipping point, regardless of the mains voltage
and or the connected load.
The symmetrical supply voltages of the power pack of an amplifier limit its out-
put power. If amplifier is overdriven by a too high input signal, the output signal
tries to exceed the value of the supply voltage. At this moment, the amplifiers
'clip'. this results in a dangerous situation for the connected loudspeakers. The
peak limiter, if switched on, intervenes here by automatically limiting the output
signal-this is indicated by the clip led of the channel in question.
◆
Level controls
（
14
）：
Establish the input levels required for each channel. only the channel 1 level
control
（
14
）
works in mono Bridge mode.