5POSITIONING AND FITTINGeCA120DN / eCA120HZDN is suitable for installation on a wall or under a surface(table, shelf, cupboard, etc.), thanks to its design and layout of its connectors, controlsand LED indicator lights. Along with the optional 1UHRMKIT accessory (not included),it is also possible to install the unit in a standard 19” rack (1RU height).This unit is intended for users with low technical expertise, for this reason, all inputgain controls are accessible by means of an adjustment turnscrew, except for theoutput level adjustments, controlled with classic rotary knobs, easily accessible fromthe front panel.Thanks to its low consumption and heat dissipation the eCA120DN / eCA120HZDNdoes not require forced cooling, however, it must be prevented from installing the unitin dusty environments with extreme temperature and/or humidity conditions.The unit must be away from noise and interference sources (voltage variators, electricengines, etc.) as well as mains cables.CONNECTINGThe amplifier is powered by alternating current through its external power source: 100-240 VAC and 50-60 Hz.The atmosphere should be as dry and dust free as possible. Do not expose the unit torain or water splashes. Do not place liquid containers or incandescent objects likecandles on top of the unit.Should any work or connection / disconnection task be done, alwaysdisconnect the unit from the mains supply. There are no elements that canbe manipulated by the user inside the unit.To avoid buzzing, do not allow the power cable to intertwine with the shielded cablesthat transport the audio signal.