Ecler AMPACK Series User Manual

Contents

8NOTE: it is possible to connect a maximum of 16 inputs to one control potentiometer. It is necessary thatthe ground terminals of all amplifiers are connected.The connection cables can be up to 500m long if a section of 0,5mm 2 is used.Consult the available accessories at your ECLER dealer or at www.ecler.com.4.5. AUTO POWER OFF functionThe AUTO POWER OFF function makes the installation of the AMPACK series more flexiblein places with difficult access, because it allows to leave the unit connected to the 220-240V 50/60Hzsupply while this will activate or deactivate itself automatically depending if there is an input signalpresent or not.In case that the level of the signal present on any of the inputs is lower than -22dBV for morethan 2 minutes, the AMPACK will switch automatically into STANDBY mode. This will becorrespondingly indicated by the ON/STANDBY led located on the unit’s upper panel, which switchesfrom green (ON) to red (STANDBY).When in STANDBY mode, the power consumption of the AMPACK25 and the AMPACK80 islower than 10VA.When the signal level becomes higher than -22dBV the device will automatically switch to ONmode.4.6. IndicatorsThe SP signal presence indicators (3, 5) light up when the input signal reachesapproximately -40dBV.The CLIP indicators (2, 6) light up when the output signal for the speakers is -1,5dB belowthe actual clipping threshold. This clipping system watches for eventual supply voltage variations,thus giving always an accurate clipping indication, regardless of mains voltage deviations. It isnormal that when operating at high output power, the CLIP indicators light up in synchronisation withthe low frequencies, which carry the most energy. Nevertheless, you should avoid that the CLIPindicators are lit continuously.5. CLEANINGThe AMPACK should not be cleaned with dissolvent or abrasive substances becausesilk-printing could be damaged. To clean it, use a soft cloth slightly wet with water and neutral liquidsoap; dry it with a clean cloth. Be careful that water never gets into the amplifier through the holes ofthe front panel.