DO NOT REMOVE MAINS CONNECTOR GROUND
IT IS ILLEGAL AND DANGEROUS
Lift Position Ground Position
to Pin 1
of the XLRs
3 INSTALLATION
USER MANUAL
TECTON POWER AMP SERIES
P.133.4 Cooling
Under normal operation of the power amp, overheating should never be a
problem. The air is taken in from the front and out through the back, it is of
course essential that while the power amp is running air is able to circulate
around it freely.
The efficiency of the cooling will depend on the immediate environment (e.g.
an enclosed rack, direct sunlight). If the amp is installed in a case, the open area
at the back of the case must be at least 140 cm². This area should be in line with
the amp.
If this can not be achieved a forced ventilation system has to be used.
3.5 Ground Lift
The input signal ground (pin 1 for all 4 XLRs) is connected to the ground of the
mains supply. In order to avoid ground loops, this connection can be separated
via a resistor. The ground potential of the power amp and the ground of the
loudspeaker always remain connected to the ground of the mains supply
regardless of the setting of this switch.
Removing or taping the mains connector ground is illegal and dangerous.
3.6 Mode Indicators
On the front panel there are two yellow LEDs to indicate the mode that is set. In
stereo mode (2-channel) none of them will be lit. In Parallel-Mono the (PM) LED
will be lit and in Mono-Bridge, the (MB) LED will be lit.
Amplifier in Parallel-Mono mode Amplifier in Mono-Bridge mode