5
- Independent -
∞
to +6dB gain control for each way.
- +17dBV output clipping LEDs.
- -18dB/octave Butterworth-type 25Hz cut-off frequency subsonic filter switchable from the back panel.
- Electronically balanced XLR-3 input and output connectors.
- Independent way/channel limiter with operation LED and switch.
- Limiting threshold adjustable from the front panel.
- Internally configurable attack and recovery times (two settings).
3. INSTALLATION
3.1. Location and assembly
The FAP30L shall be preferably placed in the same rack with the power amplifiers. Its
dimensions are one 19" standard rack unit (44mm). All the external connections are made on the back
panel.
The FAP30L does not need any cooling at all because of its low-power consumption.
Nevertheless, it is important to place it as far as possible from the power amplifiers radiated heat in
order to avoid unwanted crossover frequency derating due to the components thermal drift.
The FAP30L operates under voltages between 90 and 264 V at 47 to 63 Hz. This device
features an over dimensioned power supply that adapts to the mains voltage in any country of the
world with no need to make any adjustments. Make sure that the mains wire (which plugs into 24) is
far away from the signal cables in order to avoid any possible audio hum.
In order to protect the unit from an eventual electrical overload it carries a 500mA fuse
(24). Should it ever blow up, unplug the unit from mains and replace it with an identical one. If the
new fuse blows again contact immediately with our Authorised Technical Service. YOU MUST
NEVER EVER USE A HIGHER VALUE FUSE.
3.2. Connection and bi/tri-amplification frequency selection.
The FAP30L input and output connectors are balanced XLR-3 type and the pin assignment is
as follows:
Pin1
>
GND, negative, ground
Pin2
>
HOT, phase, direct signal
Pin3
>
COLD, non-phase, inverted signal
Whenever an UNBALANCED input or/and output connection should be done, Pin 3 shall
always be short-circuited to Pin1.
* STEREO BI-AMPLIFICATED CROSSOVER FREQUENCY SELECTION AND CONNECTION.
The FAP30L will operate in stereo bi-amplification when the 'WAYS' switch (37) on the back
panel is unpressed and the '2W' LED (21) on the front panel right hand will lit.
WARNING:
NEVER ADJUST CROSSOVER FREQUENCIES WITH THE UNIT POWERED.
ADJUSTMENTS SHALL ALWAYS BE DONE WITH THE 'POWER' MAIN SWITCH (23) OFF.
