Ecler HMA120 User Manual

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Ecler HMA120 User Manual Manual pdf 5 page image

53. INSTALLATIONThe HMA120 can be installed on a tabletop, in a standard width rack (19") or in a half-width rack(9.5"). Both rack installation options are possible using the available rack installation accessories (kit of 2brackets (2UHRMKIT), not supplied).Two considerations must be taken into account when you look for the right location where to putyour HMA120: first, maximum user comfort and second, easy access to the back panel in order to plugseveral different devices to and from the unit.Also, you should place the HMA120 away from noise sources (dimmers, motors, etc...), as well asfrom the power cables.In order to protect the unit from eventual overloads, the HMA120 is protected by a timered powerfuse (28) of 4A. If it gets blown up, you must replace it with an identical one. NEVER REPLACE THEFUSE WITH ANOTHER ONE WITH A HIGHER VALUE.CAUTION: Fuse substitutions have to be performed by a qualified technician.4. AUDIO INPUTSThe HMA120 input channels support two types of audio signals: Microphones (MIC1, MIC2): they have balanced Euroblock connectors for a level between-20dBV and -50dBV, with a back panel control (ADJ) to adjust its sensitivity Line level signals: they have a stereo unbalanced connection on double RCA connector(or minijack, only LINE 3, duplicated on front panel). They accept signals with a nominallevel of 0dBV (LINE1, LINE2) or, for LINE3 input, lower-intensity signals with an inputsensitivity of -6dB. They can receive signals from CD players, radio tuners, mixing consoles,media players, audio outputs of computers and tablets, etc.Notes: Microphone inputs supply phantom power for condenser microphones, enabled by internaljumper (see section 10. CONFIGURATION DIAGRAM) The MIC2/LINE input sensitivity is switchable between microphone and line level, withinternal jumpers (see section 10. CONFIGURATION DIAGRAM) Turntables CAN'T BE DIRECTLY CONNECTED to this unit because none of the inputs hasa RIAA preamplifier.4.1. MIC1, MIC2/LINE InputsThese 2 inputs can work simultaneously, so they can be mixed using their MIC1 and MIC2/LINElevel controls on the front panel, and this mix can be equalised with the BASS and TREBLE controls,also located on the front panel. The selected music program (LINE1, LINE2, LINE3 or MEDIA) is alsomixed with these inputs signal.In addition, they have the following features. Noise Gate: allows you to minimize the effect of ambient noise picked up by microphonesconnected to these inputs. It is enabled by DIP switch on the side of the unit, and common toboth inputs. Talkover or priority: if the Talkover function is activated for a MIC input, its microphone signalwill cause an attenuation of the music program (and also an attenuation of the othermicrophone, provided that its Talkover function is not enabled or not of higher priority) whenthe microphone exceeds the detection threshold. The Talkover function of the MIC1 input hasa higher priority than the MIC2/LINE input. Both functions are independently enabled usingDIP switches on the left side of the unit.