Yamaha MC Series User Manual

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@ Phase Reverse switch
This switch reverses the phase of the XLR connectors. In the normal position (switch up), pin 2
is positive (hot), and pin 3 is negative (cold), and input and output signals are the same. Reverse
phase by depressing this button, making pin 2 negative (cold) and pin 3 positive (hot). Out-of-
phase signals are often caused by differing wiring configurations in microphone or mixing
console cables, especially due to differing national standards.
@ PAD switch, GAIN control and PEAK LED
These offer complete control over the input sensitivity. The gain control continuously adjusts
the sensitivity. of the transformerless head amplifier between —20 & —60 dB. If this is.
insufficient, in the case of particularly high signal levels, depressing the pad switch will insert a
20dB attenuator before the head amplifier.
The red LED peak indicator lights whenever the post-EQ, pre-fader signal comes within 3dB of
clipping, warning the operator of impending channel overload. As a protective measure it is
advisable, when inserting a signal into a channel, to set the gain control to minimum, and
gradually raise the setting to the required level.
НІСН, MID FREQ/MID and LOW CONTROLS
These low-noise, low-distortion equalizers offer three bands of EQ, with +/—15 dB of gain, in
the following ranges:
HIGH: 10 kHz shelving type.
MID: 3 350 Hz — 5 kHz peaking type.
LOW: 100 Hz shelving type.
Response is flat in the center “0” position.
The variable frequency mid-range control is versatile enough to be used for feedback control.
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FREQUENCY
@ AUX 1 2 controls
These controls feed a post-EQ signal to the AUX 1 & 2 output busses. They may be used as
‘send’’ controls, to an effects unit or compressor; as outputs to a tape deck; or as extra monitor
outputs for the engineer, stage manager, etc.
NOTE: The AUX signal can be changed from pre-channel volume to post-channel volume by
changing an internal jumper. (See the diagram on the right page.) This modification can be
made at any service center (see SERVICING section).

Yamaha MC Series Specifications

General

Type	Analog
Series	MC
Phantom Power	Yes
Dimensions	Varies depending on the model
Weight	Varies depending on the model
Outputs	Main L/R, Monitor, Aux, etc.