Carvin CX420 manual Master Section Features, Speaker Connections, Main Master Level Control

MASTER SECTION FEATURES

				GRAPHIC		EQ
	+12
13	8
	4
	0
	4
	8
	– 1 2
	6 3	1 2 5	2 5 0	5 0 0	1K	2K	4K	8K	16K

SPEAKER CONNECTIONS

The recommended speaker impedance and connection is two 8 ohm speakers, one to each 1/4 phone jack. This is not the same as patching one speaker to another speaker and plugging the pair into one of the

S P E A K E R S 200 Watts

8 Ω MIN. 8 Ω

4 Ω LOADS CAN RESULT IN

PREMATURE DISTORTION

							CX630
	MAIN							12
	4	5	6
1	3		7					11
	2		8
	1		9	PHANTOM			POWER
	0		1 0					5
	4	5	6	4	5	6
2							TAPE SEND
	3		7	3		7
	2		8	2		8
	1		9	1		9
	0		1 0	0		1 0		9
	MONITOR			REVERB
	4	5	6	4	5	6
3	3		7	3		7
	2		8	2		8
	1		9	1		9	TAPE RETURN
	0		1 0	0		1 0		4
	EFF SEND			TAPE	EFF RTN
	SEND			RETURN			AMP PATCH MONITOR	MAIN
10								7
				EFFECTS			8	6

1. MAIN MASTER LEVEL CONTROL

The MAIN level control is the master volume control for the main mix. This vol- ume control receives its signals from the channel LEVEL controls, for the main mix heard at the RCA tape send outputs. If the amp patch jack is not being

8 OHM MINIMUM

MAIN SPEAKERS

8 OHM MINIMUM

MAIN SPEAKERS

used, then this is also the master volume control feeding the graphic EQ, the main line output jacks, and the internal power amplifier.

2. MONITOR MASTER LEVEL CONTROL

The MONITOR master control is the master volume for the monitor mix. This volume control receives its signals from the channel MONITOR level controls, for the monitor mix heard in the monitor output. Some of the internal reverb signal is also sent to the MONITOR control.

3. EFFECT SEND MASTER LEVEL CONTROL

The EFFECT SEND master control is the master volume for the effects send mix. This volume control gets its signals from the EFF/REV control on the chan- nels, for the effects send mix heard in the effects send output. The typical use of the effects send mix is to drive external effects processors ,but it can also be used as another monitor mix if needed.

speaker jacks. The reason is the CX630 and CX420 are made with two amplifiers one to each jack. The equivalent impedance of a linking two

8 ohm speakers together would be 4 ohms into one of the jacks, which is NOT recommended. The CX630 mixer can handle 4 ohms at low oper- ating levels with no added distortion, but at high levels with the CX630 or loading the CX420 with 4 ohms per jack may result in premature distor- tion (or a crackling sound) , however, this will not damage the amplifiers. If this sound is heard, simply back off the MAIN volume until the no dis- tortion is heard.

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