Carvin CX630 Instruction Manual - Page 10

MASTER SECTION FEATURES 13 GRAPHIC EQ +12 8 4 0 4 8 -12 63 125 250 500 1K 2K 4K 8K 16K CX630 1 2 3 10 MAIN 456 3 7 2 8 1 9 0 10 4 56 3 7 2 8 1 9 0 10 MONITOR 4 56 3 7 2 8 1 9 0 10 EFF SEND SEND 12 PHANTOM 4 56 3 7 2 8 1 9 0 10 REVERB 4 56 3 7 2 8 1 9 0 10 TAPE EFF RTN POWER TAPE SEND TAPE RETURN RETURN AMP PATCH MONITOR 11 5 9 4 MAIN 7 EFFECTS 8 6 1. MAIN MASTER LEVEL CONTROL The MAIN level control is the master volume control for the main mix. This volume 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 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 channels, 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. 5 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 SPEAKERS 200 Watts 8Ω MIN. 8Ω 4Ω LOADS CAN RESULT IN PREMATURE DISTORTION 8 OHM MINIMUM 8 OHM MINIMUM MAIN SPEAKERS MAIN SPEAKERS 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 operating 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 distortion (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 distortion is heard. 14