3.0 INSTALLATION
3.4 Cooling
Under normal operation of the power amp, overheating should never be a problem. The temperature of the cooling air will depend on the immediate environment (e.g. an enclosed rack, direct sunlight) and on whether the front filter is clogged. 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 achived a forced ventilation system has to be used.
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.
3.5 Ground Lift
The input signal ground (pin 1 for all 4 XLR’s) is tied to the ground potential in the mains supply. Opening the ground lift switch causes this connection to be broken. This allows ground loops that sometimes occur in practice to be eliminated. The ground potential of the power amp and therefore of the loudspeaker outputs is independent of the switch setting and remains at the ground potential of the mains supply.
Removing the mains connector ground - as often practiced - is not only illegal but pointless too, since in practice it never produces any improvement!
DO NOT REMOVE MAINS CONNECTOR GROUND
IT IS ILLEGAL AND DANGEROUS
3.6 Wiring
3.6.1 SPEAKON Connection
4 Ohm speaker cabinets in parallel
Use the contacts in both SPEAKON connectors for each channel. If not, this may cause permanent damage of the connectors, depending on the music material.
INPUT |
| UPPER SPEAKON | |
CHANNEL A | CH. A |
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CH. B
INPUT
CHANNEL B
BOTTOM SPEAKON
P.12 | CAMCO USER MANUAL |
VORTEX POWER AMP SERIES |