Ecler NXA SERIES - Manual (Page 9)

9
4. OPERATION AND USAGE
4.1. Start up
When the rear panel POWER switch (14) is pressed, the amplifier is powered by the network and can be
switched on, briefly holding the front POWER button (6) or remotely from the EclerNet Manager application or with
the TP-NET protocol.
In a complete audio installation, it is important to start up the equipment in the following sequence: sound
sources, mixer, equalizers, active filters, processors and finally power amplifiers. To turn them off the sequence
should follow an inverse pattern.
4.2. Front panel LED indicators
NXA series products have the following LEDs on their front panel:
 SP indicators (2): indicate a signal presence in the amplification channels. These indicators light up when the
input signal exceeds a -40dB threshold.
 CLIP / PROTECT indicators (4): (available only on models 4-200, 6-200 and 4-400)
They light up for two possible reasons:
o When the signal delivered to the speaker is close to the actual clipping level. The CLIP detection
system considers possible voltage fluctuations of power supply, always giving a real indication
even if they exist. It is normal for CLIP indicators to be lit at the bass frequencies rhythm for high
operating levels, as these frequencies have the higher energy content. You must take care that
these indicators do not permanently light up during normal operation of the equipment.
o To indicate the absence of signal at the amplified output of the unit in the following cases:
 During the startup process up to the end of the STANDBY time necessary to stabilize the
amplifier internal tensions, before being finally operational.
 The equipment enters protection mode if it detects a low frequency signal that may
damage the speakers, excessive internal temperature, a short circuit at the amplified
output or a possible internal damage.
In any case, if these indicators permanently light up, it is a sign of malfunctioning and its
cause should be investigated.
 CLIP indicators (3): (available only on models 4-80 and 6-80)
They light up when the signal delivered to the speakers is near clipping. The CLIP system considers
possible voltage fluctuations of power supply, always giving a real indication even if they exist. It is normal
for CLIP indicators to be lit at the bass frequencies rhythm for high operating levels, as these frequencies
have the higher energy content. You must take care that these indicators do not permanently light up
during normal operation of the equipment.
 DATA transfer indicator (5): blinks to indicate a data transfer activity between the device and the remote
control PC running EclerNet Manager.
Note: all front panel LEDs blink when the "Device Finder" function is activated in EclerNet Manager
application. That’s useful for identifying a physical device from its virtual counterpart in this application.
Please refer to the EclerNet Manager software manual for more information.