POWER INPUT
MAINS IN -
Powercon® NAC3FCA power input connector (blue). To switch the ampli
fi
er on, insert the
Powercon® connector and turn it clockwise into the ON posi on. To switch the ampli
fi
er o
ff
, pull back
the switch on the connector and turn it counter-clockwise into the POWER OFF posi on.
WARNING!
In the case of product failure or fuse replacement, disconnect the unit completely
from the mains power. The power cable must only be connected to a socket corresponding
to the speci
fi
ca
Ɵ
ons indicated on the ampli
fi
er unit. The power supply must be protected by
a suitably rated thermo-magne
Ɵ
c breaker.
Preferably use a suitable switch to power on the
whole audio system leaving the Powercon® always connected to each speaker, this simple trick
extend the life of the Powercon® connectors.
CONTROL PANEL
ON -
This LED indicates power on status.
PROT -
This red LED lights when the amplifier
module is in protect mode for an internal fault and,
consequently, the ampli
fi
er is muted.
SIGN LIMIT -
This LED lights in green to indicate the
presence of the signal and lights in red when an
internal limiter reduces the input level.
INPUT -
Audio signal input with locking XLR connector.
It has a fully electronically balanced circuitry including
AD conversion for the best S/N ratio and input
headroom.
LINK -
A direct connec on from the input connector to
link other speakers with same audio signal.
GND LIFT -
This switch li the ground of the balanced
audio inputs from the earth-ground of the ampli
fi
er
module.
PRESET BUTTON -
This bu on has two func on:
1)
Pressing it while powering on the unit:
ID ASSIGN
the internal DSP assigns a new ID to the unit for the PRONET remote control opera on. Each loudspeaker must have a unique
ID to be visible in the PRONET network. When you assign a new ID, all the other loudspeakers with the ID already assigned
must be ON and connected to the network.
2)
Pressing it with the unit ON you can select the DSP PRESET. The selected PRESET is indicated by the corresponding LED:
STANDARD
This PRESET is suitable for any applica on where low frequency reinforcement is required. It features a 90Hz cut o
ff
frequency
and it can be used in almost any environment in combina on with any ver cal arrays.
INFRA
This PRESET can be used when a deeper bass response is required (Note that when this preset is used the sound pressure level
of the system is slightly reduced). NOTE: INFRA and STANDARD PRESET must NOT be used together in close units.
CARDIOID
This special PRESET, combined with the STANDARD PRESET, gives the advantage to reduce the low frequencies at the back of
an array of three subs, in order to obtain a more comfortable level for the performers on the stage without losing level for the
the audience in front of the array. The cardioid con
fi
gura on is also useful in situa on where you want to reduce the bass
frequency feedback due to many microphones on stage, for example for acous c and jazz ensemble, classic orchestra, musicals.
Further in this manual you can
fi
nd some example how to set up a cardioid array.
USER
This LED lights when the USER PRESET is loaded. This preset corresponds to USER MEMORY no. 1 of the DSP and, as a factory
se ng, it’s the same to STANDARD. If you want to modify it, you have to connect the unit to a PC, edit the parameters with
PRONET so ware and save the PRESET into USER MEMORY no. 1.
NETWORK IN/OUT -
These are a standard RJ45 CAT5 connectors (with op onal NEUTRIK NE8MC RJ45 cable connector carrier), used for PRONET
network transmission of remote control data over long distance or mul ple unit applica ons.
TERMINATE -
In a PRONET network the last loudspeaker device must be terminated (with an inner load resistance) especially in a long run cabling:
press this switch if you want to terminate the unit.
