I/O AND CONTROL OPERATIONS
MAINS~ IN -
Powercon® NAC3PX power inlet connector. To switch the amplifier on,
insert the Powercon® connector and turn it clockwise into the ON position. To switch
the amplifier off, pull back the switch on the connector and turn it counter-clockwise
into the POWER OFF position.
MAINS~ OUT -
Powercon® NAC3PX power outlet connector. This is connected in
parallel with the MAINS~ IN.
WARNING! Connect no more than one subwoofer unit to the MAINS~ OUT
connector.
WARNING! If you use the MAINS~ OUT turn on each subwoofer unit one a
time.
WARNING! In the case of product failure or fuse replacement, disconnect the
unit completely from the mains power.
WARNING! Use a suitable power cable and mains plug to build the
power cable, it must only be connected to a socket corresponding to the
specifications indicated on the amplifier unit.
See assembly instruction downloadable from NEUTRIK WEB site at: http://
www.neutrik.com/
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 amplifier 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 connection from the input connector to link other speakers with same
audio signal.
GND LIFT -
This switch lift the ground of the balanced audio inputs from the earth-
ground of the amplifier module.
PRESET BUTTON -
This button has two function:
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 operation. 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 application where low frequency
reinforcement is required. It features a 90Hz cut off frequency and
it can be used in almost any environment in combination with any
vertical 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 configuration is also useful in situation where
you want to reduce the bass frequency feedback due to many microphones on stage, for
example for acoustic and jazz ensemble, classic orchestra, musicals. Further in this manual
you can find 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 setting, 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 software and save
the PRESET into USER MEMORY no. 1.
NETWORK IN/OUT -
These are a standard RJ45 CAT5 connectors (with optional NEUTRIK NE8MC RJ45 cable
connector carrier), used for PRONET network transmission of remote control data over long distance or multiple
unit applications.
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.
