INSTALLATION
Unpacking
Carefully open the shipping carton box and check for any
noticeable damage. Every amplifier has been QC tested
and inspected before leaving the factory. If any damage
may had happened during transportation notify the
incidence to the shipping company immediately. Keep
the carton box in case you need to ship the amplifier to an
authorized service center.
Rack Mounting
Free airflow, front to rear, of the amplifier unit must be
allowed. Therefore, no doors or rack lids should be
mounted in front of or behind the amplifiers in order to
not block the airflow necessary to cool the units.
Amplifiers may be installed stacked directly one on top of
each other, but the ideal configuration would be spacing
them vertically 1 rack unit.
It is recommended to assembly the rear brackets
provided
with the units when fixing them to a rack:
Cooling
The amplifier uses a forced air cooling system with front to
rear airflow in order to maintain a controlled operation
temperature.
The cooling fans suck cool air in through the front and
blow hot air out at the rear of the unit through the
ventilating grills. The front and rear of the amplifier should
have free exposure to the air (i.e. in a rack leave the front &
rear doors off), with 2cm air gap at the sides.
It is also very important to keep clean the dust filters
located behind the detachable front panel in order to
ensure always maximum air flow.
The filter behind the air intake apertures on the front of
your amplifier should be cleaned or replaced periodically,
e.g. 12-24 months. (Filters in amplifiers located in more
'dirty' atmospheres may require more f requent
maintenance).
The filter should be 'dry' cleaned, using a vacuum cleaner
preferably. Running the unit without a filter is not
Operating Voltage
The label placed close to the mains cable at the rear
amplifier panel indicates the nominal operating voltage
of the unit. Be sure of the nominal voltage required by the
amplifier before connecting it to the mains.
In case the power connector supplied with the power cord
is not valid for you area / region it would need to be
removed and replaced by a convenient one wired as
follows:
Rear mounting brackets and hardware provided
Insert the Screw + Washer and fix the bracket to the rear
panel for permanent installation
Use the Spacer for non permanent installation
6
EP
series /
User’s Manual
BLACK or BROWN
WHITE or BLUE
GREEN or GREEN/YELLOW
LIVE
NEUTRAL
EARTH (GROUND)
Once a suitable AC supply is connected to the unit, the
amplifier can be turned on using the front panel power
switch. The amplifier will start a short auto-check
sequence:
- Power led will lit in green.
- The fans will blow at the highest speed before dropping
to idle state.
- Mute leds will indicate that all output channels are
muted during the test. After 3 seconds channels will be
unmuted.
The inrush current is controlled during the auto-check
sequence enabling multiple amplifiers to be turned on at
the same time.
2x
Power cables
115V areas
Use standard 15A Edison plug for models EP-2K4 and
EP-6K4. One 20A circuit per amplifier.
Use Nema L5-30 Twist lock plug for models EP-10K4 and
EP-22K4. One 30A circuit per amplifier.
230V areas
Use in all cases standard 16A Schuko plug.
