Installation; Placement And Mounting; Connectable Signal Sources - Ecler AC-6 Manual De Instrucciones

3. INSTALLATION

3.1. Placement and mounting

The main consideration that has to be taken when searching a location for the AC-6 mixer is the
maximum working comfort for the operator, allowing to realize the connections as easy as possible.
The AC-6 has 19" (482,6mm), 8U (355mm) rack mounting ears that allow you to place it in a
standard rack.
Because of the high gain of the PHONO and MICRO 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 AC-6, 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 AC-6 operates under voltages between 90 and 264 V at 47 to 63 Hz. This device features an
over dimensioned 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 time-lag 0,5 A 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 -55dBV and -25dBV (1,77 to 56mV). The PHONO (55) inputs of the AC-6 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 (54) are ready for a nominal input level of -50dBV (3,16 mV) and
are equipped with COMBO connectors. The COMBO connector provides both a XLR plug and a ¼'' Jack
in the same receptacle. The connection of balanced signals is as follows:
Hot or direct signal
Cold or inverted signal
Ground
Low impedance (200 to 600) monophonic microphones must be used. In case of working with
an unbalanced connection Pin 1 and Pin 3 must be short-circuited.
The AC-6 wears phantom power for condenser microphones. The 2 switches (53) to activate the
phantom power are independent for each micro and are located at the unit's back plate. The phantom
voltage supplied is 18 VDC.
- CD/LINE Inputs. Given the important level differences between usual LINE and CD sources
(e.g. Tape decks), the AC-6 provides specialized inputs for each source. The sensitivity of the CD input
(52) is 0dBV (1V), while the LINE (51) sensitivity is -10dBV (316mV).
Compact disc, DAT, MP3, DVD Audio... should be connected to the CD input. Tape recorders,
cassettes, tuners, videos... should be connected to the LINE input.
XLR-3
> Pin 2
> Pin 3
> Pin 1
¼'' Jack
Tip
Ring
Sleeve
5