Installation; Audio Inputs - Ecler HMA120 Notice D'utilisation

3. INSTALLATION

Non-compliance with the instructions or neglecting warnings may cause malfunction or even
damage the unit:
1. Avoid turning on the device without the speakers connected to its outputs and without
having previously set the volume/gain controls to minimum level.
2. Always use shielded cables to make connections between devices.
3. In an amplifier, avoid placing the speaker output cables close to other signal cables (micro,
line...). This may cause the system to oscillate, damaging the amplifier and speakers.
The 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 2
brackets (2UHRMKIT), not supplied).
Two considerations must be taken into account when you look for the right location where to put
your HMA120: first, maximum user comfort and second, easy access to the back panel in order to plug
several different devices to and from the unit.
Also, you should place the HMA120 away from noise sources (dimmers, motors, etc...), as well as
from the power cables.
In order to protect the unit from eventual overloads, the HMA120 is protected by a timered power
fuse (28) of 4A. If it gets blown up, you must replace it with an identical one. NEVER REPLACE THE
FUSE WITH ANOTHER ONE WITH A HIGHER VALUE.
CAUTION: Fuse substitutions have to be performed by a qualified technician.

4. AUDIO INPUTS

The 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 nominal
level of 0dBV (LINE1, LINE2) or, for LINE3 input, lower-intensity signals with an input
sensitivity 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 internal
jumper (see section 10. CONFIGURATION DIAGRAM)
•
The MIC2/LINE input sensitivity is switchable between microphone and line level, with
internal jumpers (see section 10. CONFIGURATION DIAGRAM)
•
Turntables CAN'T BE DIRECTLY CONNECTED to this unit because none of the inputs has
a RIAA preamplifier.
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