Carvin CX1252 manual Channel Features

CHANNEL FEATURES

1. LINE INPUT JACK

The LINE input is a 1/4” phone jack designed for unbalanced line and instrument level inputs. Examples of these inputs would be instruments such as a guitar, a

keyboard, an unbalanced mic, or a pre-amp output. The line input can be used
at the same time the mic input is being used.		MON4		5	6
2. XLR MICROPHONE INPUT	5	3				7
		2				8
The XLR MIC input is designed for balanced low imped-		1				9
		0			10
ance ( microphone ) input signals. The balance means		4		5	6
the input differential amplifier will reduce the common
	4	3				7
noise picked up on the microphone cables. The XLR		2				8
		1				9
connector is wired as per the industry standard, pin 1 is
		0			10	-20
ground, pin 2 is non-inverting (positive), and pin 3 is			LEVEL			dB
	3			1
inverting (negative).
Phantom power is available on every XLR input jack
when the phantom power switch in the master section is
pressed. This feature allows condenser microphones to
be run directly from the mixer.	2
Note: When using phantom power make sure the phan-
tom power is switched off before connecting or discon-
necting microphones to the mixer. It is recommended to				MIC
allow 5 seconds for the phantom power to discharge	1
before making any microphone connections. Also, to
avoid hearing a pop, turn down the master volume when
turning on the phantom power.			LINE

3. -20DB PAD SWITCH

This switch reduces the input gain on both the line and mic input jacks by 20dB. If distortion is heard regardless of the channel LEVEL control’s setting engage this switch. This will eliminate the over-driving of the input amplifier before the channel LEVEL control.

4. CHANNEL LEVEL CONTROL

The LEVEL control adjusts the final volume of the channel before going to the Pan control. Here is where the individual channel volumes are adjusted to make up the desired mix heard at the main outputs. A general rule to prevent distor-

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LEFT LINE OUT RIGHT LINE OUT TO INTERNAL POWER AMP

BLOCK

CX 1252

EFFECTS SEND 2 2 STAGE INTERNAL DSP SEND

EQUILIZER

GRAPHIC

NINE BAND

LEFT TAPE OUT LEFT AMP PATCH

	NINE BAND	GRAPHIC EQUILIZER
RIGHT TAPE OUT			RIGHT AMPPATCH

MONITOR LINE OUT AMP

EFFECTS SEND	GAIN	GAIN REDUCTION FOR DSP
EFFECTS	SEND 2	LEVEL
AMP

MAIN LEFT SUMMING AMP AND LEVEL MAIN RIGHT

SUMMING AMP AND LEVEL MONITOR SUMMING

EFFECTS SUMMING

EFF

NOM

R

L

PAN	CHANNEL EFF SND	CHANNEL MONITOR LEVEL
CHANNEL	LEVEL
BAND TONE	LOW

RETURN LEFT	DSP TO MONITOR
DSP

DSP RETURN RIGHT

EFFECTS RETURN LEFT

EFFECTS RETURN RIGHT

Part NoDate Revised

tion with in the mixer, is to always keep the MAIN master level the same or high- er than the channel LEVEL.

5. MONITOR LEVEL CONTROL

The MONITOR level control adjusts the volume of the channel going to the mon- itor mix. Here is where the individual channel monitor volumes are adjusted to make up the desired mix heard at the monitor output. The monitor level control is pre channel level and pre channel tone controls. This means it is unaffected by adjustments in channel level and tone controls. The purpose for this is so the main mix adjustments for tone and level can be made without disturbing the monitor mix.

THREE	CHANNEL	CONTROLS			HI MID
-20dB PAD SWITCH	MIC	PRE	PAD	line pad (-26dB)	CHANNEL

STEREO RETURN FOR INTERNAL STEREO DSP TAPE RTN LEFT EFF INPUT LEFT TAPE RTN RIGHT EFF INPUT RIGHT

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