9
ATTENTION:
Terminals 1+ and 1- should only be used in case of “STEREO” or
“MONO” mode and terminals 1+ and 2- in “BRIDGED” mode. Any other combination
may impair final audio quality
When operating in BRIDGED mode, always make sure that the resulting load
impedance of the installation is never below 5.3
.
The connection cable that joins the amplifiers outputs and the loudspeakers must be of
good quality, sufficient section and as short as possible. This is most important when
the distances to cover are long ones i.e. up to 10 meters it is recommended to use a
section not inferior to 2.5mm
2
and for superior distances 4mm
2
.
6.
OPERATION AND USAGE
6.1. Start up
Pushing the switch button lights up the integrated pilot light and both red "CLIP" LEDs
during the approximately 10 seconds needed to stabilize all voltages. The "CLIP" LEDs
will then turn off meaning that the amplifier is now operative.
In a complete audio installation, it is important to start up the equipment in the following
sequence: sound sources, mixer, equalizers, active filters and finally power amplifiers. To
turn them off the sequence should follow an inverse pattern.
6.2. Input attenuators
This consists of rotary potentiometers, situated on the front panel.
These attenuators allow connecting the amplifier to different types of mixers and
processors, independent level control and connection of speakers that can't handle the
wattage supplied by the output stage at full power, without risking damage if the
volume of the preamplifier-mixer is set too high.
Inside the device's packaging you will find a little plastic bag containing 2 transparent
caps which protect the input attenuation settings from unwanted manipulation. These
caps are transparent in order to let you visualize the current settings.
Once inserted, they cannot be removed with bare fingers, for this purpose, a small
screwdriver is needed.
