SONOSAX SX-ES64 - Manual (Page 8)

User manual SONOSAX SX-ES64 Page 8 of 27
4.1.1 Mic/Line Inputs [ IN1 to IN6 ]
Each of the input channels is mono and accepts of any type of dynamic or condenser microphone, or
connection of any external analogue device at line level.
The inputs are electronically balanced, transformer less.
Input connectors are standard XLR-3 female where:
Pin1 = Gnd / Pin2 = High (+) / Pin3 = Low (-).
To connect an unbalanced source such as CD Player, Minidisk or else, pin 3 must be bridged to pin 1 (Gnd)
and wired to the Gnd of the source. Then use pin 2 for the unbalanced input signal.
WARNING: Never use the [48V] Phantom in case of unbalanced connection or you could severely
damage the source!
Direct Channel Output:
Each input module provides with a direct channel output. They are taken either Pre-Eq, or Post-Eq or Post-
fader. Selection is made by an internal soldering jumper inside the input module.
These direct channel outputs are at line level, available on the Sub-D 25 pin connector [LINEOUT] on the rear
panel. Output type is electronically balanced, transformer less. The wiring diagram is available in chapter 7
NOTE: The selection of the analogue output source is independent from the direct output source that
feed the A/D Converter.
4.1.2 Phantom power [ 48V ]
This switch turns the 48V Phantom power On or Off on the corresponding channel.
When set to [DYN] the 48V phantom power is turned off for connection of Dynamic microphone or any other
analogue source.
When set to [48] the 48V phantom power is turned on to power a condenser microphone.
WARNING:
Never use the 48V Phantom when an external device other than a condenser microphone is
connected to the input or you may severely damage the output circuitries of that device.
Never use the 48V Phantom in case of unbalanced connection.
NOTE:
Almost all modern condenser microphones of the latest generations are operating under 48V
Phantom power. Because of their excellent common mode rejection (CMRR) it has been
decided to include only this kind of microphone powering on the SX-ES64.
4.1.3 Pre-LF Cut Filter [ LF Cut ]
This switch engages a passive low frequency pre-filter (Pre LF-Cut) which is acting before the microphone
pre-amplifier to attenuate low frequencies at high level that could affect the pre-amplifier and thus preventing
an optimal setting of the input gain.
These low frequencies of high level can be generated, among other, by the microphone capsule when
recording outdoor in strong wind condition.
The Pre LF-Cut frequency is set at 135Hz and has a slope of –6dB/octave.
4.1.4 Phase reversal [ Ø
]
This switch reverses the polarity of the input signal, which corresponds to a phase rotation by 180 degrees.
It can be used to correct a reversed cable wiring or to address a phase problem between two microphones
due to their placement while recording in stereo. It can also be used to progressively decode a M/S signal on
a three ways decoding method.