Ecler MAC40v - Manual (Page 5)

5
3. INSTALLATION
3.1. Placement and mounting
The first thing to take into account when looking for the placement of the MAC40v is
your comfort and an easy access to all the connections.
The MAC40v has 19" (482.6 mm), 6U (266 mm) rack mounting ears that allow you
to place it in a standard rack.
Because of the high gain of the PHONO and MIC inputs, the mixer must be placed as
far as possible from noise sources (dimmers, engines, etc.) as well as from any mains cable.
You should never, under any circumstance, remove the metallic cover of the mixer.
The MAC40v, being a low consumption unit, does not need any cooling; you should
anyway avoid exposure to extreme temperatures and the operating environment must be as dry
and dust free as possible.
The MAC40v operates under voltages between 90 and 264V at 47 to 63Hz. All
models of the MAC v-series feature an overdimensioned power supply that adapts to the mains
voltage in any country of the world with no need to make any adjustments.
In order to protect the mixer from eventual mains overloads, it has a temporized 0,5 A
(38) mains protection fuse. Should this fuse ever blow off, disconnect the mixer from mains
and replace it with an identical one. NEVER REPLACE THE FUSE WITH ANOTHER ONE WITH A
HIGHER VALUE.
ATTENTION: Changing the fuse must be performed by qualified technical personnel.
3.2. Connectable Signal Sources
- Turntables / Phono: They must be fitted with a magnetic cartridge with nominal
output level between -60dBV and -20dBV (1 to 100mV). The PHONO (29) inputs of the
MAC40v have a high headroom (margin before saturation) and it can handle higher output
cartridges than what is usual. These inputs are supplied with a nominal input sensitivity of
-40dBV(10mV).
-
Microphones: The MIC inputs (25) are ready for a nominal input level of
-50dBV (3.16mV) and are equipped with ¼’’ jack connectors. These inputs provide, through
the input selector (1) at ATT position, an input sensitivity reduction of 20dB; this is, from -50
to -30dBV (3.16 to 31.6mV). The connection of balanced signals is as follows:
Hot or direct signal > Tip
Cold or inverted signal > Ring
Ground > Sleeve
Low impedance (200 to 600
:) monophonic microphones must be used. In case of
working with an unbalanced connection we recommend to use monophonic jack plugs although
stereo jacks plugs are also suitable if the ring is short-circuited to the sleeve.
The MAC40v features a Phantom power supply for the connection of condenser
microphones. An internal jumper allows you to inhibit the phantom power supply. The default
setting of this Jumper on the MAC40v is "Phantom ON". See diagram 7.1.