Chilton CM2-4, Operating Instructions Manual

Page: 6 / 26

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Mik-El / Chilton Page 6 of 26
Mono Microphone and Line Input. M1
Dual concentric control, lower Microphone top Line Microphone gain is variable between
20dB. A 20 dB pad or attenuator is provided. Thus should be used when the gain is
around the 20-30dB mark. A 48V supply is available for capacitor microphones which are
not self powered. The accidental use of this supply on dynamic types will not cause
damage. The microphone phase change switches should all point in the same direction
unless a phase problem is suspected. Line gain is variable b10dB to -20dB
therefore with Channel and Group fader at ref. 0-10dBm to +20dBm input will give 0dBm
on Group meters.
High Frequency shelf control: +-15dBm at 10kHz centre (indent flat)
Switchable High Pass Filter effectively removes low frequency components below 70 Hz at
the rate of 12dB/octave Pre-EQ
Dual concentric mid sweep control. 100 - 10kHz.
Lower control knob sweeps 100Hz to 1kHz or with 10 switch depressed 1k - 10kHz
(overlap provides up to 13kHz)
Top control knob: Boost or cut +-15dB at frequency selected. Centre Indent flat (Q 1-5)
Low Frequency shelf control: +-15dB at 100Hz. Centre indent flat.
Equalisation in circuit with EQ button depressed (Green fisheye).
High pass filter independent of this control.
Auxiliary 1 Send. A 1 Pre channel fader (can be linked to Post)
Auxiliary 2 Send. A 2 Switchable Pre or Post channel fader.
Panning is provided between Left and Right group outputs or can be used as a Group
Routing switch.
Channel On. Button down (Green fisheye).
Note: Both Auxiliary Sends are muted with button UP.
PFL Pre-Fade Listen switch (lockable fisheye) routes the Channel to Cue Loudspeaker,
Headphones and Control room monitors without affecting the Group output. Illuminates a
Green LED on the M3 Monitor module.
Peak Level indicator is illuminated if the channel level appr4dB. This is 16dB
below clip point; allow for subsequent EQ adjustment. Note: (Pre-set adjust -10dB to
+20dB)
104mm Linear fader. Very high quality plastic conductive with rubber end stops. Micro
switch can be fitted for self start or monitor mute.
Rear Panel. Balanced and floating Microphone or Line inputs
Microphone Input: Connections see block diagram. Suitable for 200 ohm type
microphones.
Line Input: Balanced input connect as diagram. Unbalanced input Live to pin 2 Common
to pin 3 Screen only pin 1
Direct Output: Jack tip Live. Sleeve Common. May be wired Pre Fader
Insert: Jack 3 pole type. Tip Return. Ring Send . Sleeve Common.