Connectable Signal Sources - Ecler MAC70i Manual De Instrucciones

The MAC70i operates (depending on country) under 110, 120, 220, 230 or 240V AC
50/60Hz. See characteristics in the back of the unit. You should avoid mixing the mains wire with and
in between shielded signal cables, because this could generate noise and hum.
In order to protect the mixer from eventual mains overloads or occasional excesses in the
consumption of the internal circuits, it has a 250mA (44) mains protection fuse. Should this fuse ever
blow off, disconnect the mixer from mains and replace it for an identical one. If the new fuse also
blows ask our Authorised Technical Service. NEVER REPLACE THE FUSE WITH ANOTHER ONE
WITH A HIGHER VALUE.
CAUTION: Fuse substitutions have to be performed by a qualified technician.

3.2. Connectable Signal Sources

- Turntables / Phono: They must be fitted with a magnetic cartridge capable of a nominal
output between -60 and -20dBV (1 and 100mV). The PHONO (36) inputs of the MAC70i have a high
headroom (margin before saturation) and it can handle higher output cartridges than what is usual. If
you plan to use moving coil cartridges, they must be of high output level type, you should use a
transformer or external preamplifier, which must be placed as near as possible to the turntables.
These inputs have a nominal sensitivity of -40dBV (10mV).
- Microphones: The MIC inputs (37) are ready for a nominal input level of
-50dBV (3.16mV). They are of the XLR 3 type. 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 MIC inputs allow for balanced connections. You should use the following connections
for the XLR:
Hot or direct signal
Cold or inverted signal
Ground
The microphones must be low impedance (200 to 600) monophonic. For non balanced
connections, short circuit terminal 3 to ground.
- Compact disc, magnetophone, cassettes and videos: These signals can be connected to
any CD (39) or LINE (38) input. Al these inputs carry level type signals between -30 and +20dB
(31.6mV and 10V).
However, given the important level differences between usual LINE and CD sources, the
MAC70i provides specialized inputs for each source. The CD input sensitivity is 0dBV(1V) while the
LINE input sensitivity is -10dBV (316mV). In both cases, it is possible to internally adjust them (see
4.7).
-Tuners and auxiliary equipment: Any auxiliary equipment capable of supplying a signal
between 316mV and 1V must be connected to the above mentioned LINE inputs.
The AUX IN (35) input can be used like any other line level input. The send to bus is
assignable through internal jumpers (see diagram 7.2). The mixer is factory preadjusted with the
AUX input adjusted to the PGM bus.
> Terminal 2
> Terminal 3
> Terminal 1
5