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Connections
Connect the output of a pre-amplifier or mixer to the jack inputs. The input signal should be of line level.
The maximum output power is obtained when connecting 4 ohm speakers.
It is also possible to connect 8 ohm speakers; however, the output power will slightly decrease in this case.
The speakers must have a power rating higher than the output of the amplifier.
Connect the output of the amplifier to suitable speakers via either the left and right speakeron connectors.
Switching On/Off
In order to a avoid loud switching noise, always switch on all other units in an amplifier system before switching
on the power amplifier, and switch it off first after operation. After switching on, the LED PROTECT lights up for
approximately one second. During this time the switch-on delay is activated to protect the speakers.
Level adjustment
Set the output of the mixer or pre-amplifier to its rated level (0dB) or to the highest undistorted output signal.
Turn up the controls so far until the maximum desired volume is reached. If the red CLIP LED illuminates (showing
an overload of the amplifier), slightly turn back the controls.
Protective circuit
The protective circuit is provided to prevent damage to the speakers and the amplifier. If it is activated, the yellow
PROTECT LED will light up:
1. Approx. one second after switching on (soft start).
2. If the amplifier is overheated, or if a short circuit has occurred at a speaker output the CLIP LED of the
corresponding channel lights up. If this is the case or if the yellow LED PROTECT lights up during the operation or if
it is not extinguished after switching on, the amplifier must be switched off and the cause for the defect needs to
be eliminated.
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Controls and connections
1. Power switch
2. Channel volume controls
3. Channel Clip LED indicators
4. Channel Signal LED indicators
5. Channel A/B Protect LED indicator
6. Power Indicator LED
7. Fuse
8. AC mains input
9. Speakeron output
10. Unbalanced Jack input
11. Fan
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