Ecler NXA series User Manual

Also see for NXA series: User manual

Contents

94. OPERATION AND USAGE4.1. Start upWhen the rear panel POWER switch (14) is pressed, the amplifier is powered by the network and can beswitched on, briefly holding the front POWER button (6) or remotely from the EclerNet Manager application or withthe TP-NET protocol.In a complete audio installation, it is important to start up the equipment in the following sequence: soundsources, mixer, equalizers, active filters, processors and finally power amplifiers. To turn them off the sequenceshould follow an inverse pattern.4.2. Front panel LED indicatorsNXA 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 theinput signal exceeds a -40dB threshold. CLIP / PROTECT indicators (4): (available only on models 4-200, 6-200)They light up for two possible reasons:o When the signal delivered to the speaker is close to the actual clipping level. The CLIP detectionsystem considers possible voltage fluctuations of power supply, always giving a real indicationeven if they exist. It is normal for CLIP indicators to be lit at the bass frequencies rhythm for highoperating levels, as these frequencies have the higher energy content. You must take care thatthese 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 theamplifier internal tensions, before being finally operational. The equipment enters protection mode if it detects a low frequency signal that maydamage the speakers, excessive internal temperature, a short circuit at the amplifiedoutput or a possible internal damage.In any case, if these indicators permanently light up, it is a sign of malfunctioning and itscause 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 considerspossible voltage fluctuations of power supply, always giving a real indication even if they exist. It is normalfor CLIP indicators to be lit at the bass frequencies rhythm for high operating levels, as these frequencieshave the higher energy content. You must take care that these indicators do not permanently light upduring normal operation of the equipment. DATA transfer indicator (5): blinks to indicate a data transfer activity between the device and the remotecontrol PC running EclerNet Manager.Note: all front panel LEDs blink when the "Device Finder" function is activated in EclerNet Managerapplication. 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.