Carvin CX872 Instruction Manual - Page 5

STEREO LIVE SOUND SYSTEM SPEAKER CONNECTION In a live sound reinforcement or a public address system (P.A. System), the input signals to the mixer will come from the microphones and instruments on the stage. Each microphone or instrument to be amplified by the P.A. system must be connected to one of the mixing console inputs. It is preferred to have as many of the stage instruments as possible plugged into the mixer. This allows for the best overall sound control of the instruments as they are mixed together and then amplified by the P.A. system. The mixer can be operated on the stage or from a remote location in front of the stage using a snake cable to bring the signals from the stage to the mixer. The advantage of the remote operation allows the performance to be monitored and mixed from the audience's perspective. THE SOUND CHECK The sound check takes some skill, but mostly patience from the performers and especially you the system operator. If you get frustrated during the sound check the performers can lose confidence and the sound may suffer due to things missed in the sound check. The basic sound check follows this format: First test all microphones and other input devices(direct boxes, etc.) before the performers are included in the sound check. A good thing to also check here is feedback in the monitors from the microphones. Good positioning of the monitors and the use of the graphic equalizer solves most major monitor feedback problems. Now for a sound check with the performers. First set the level of each performer individually and in cases where a performer has multiple microphones, such as with a drummer, set each drum mic individually then the drum set as a whole. This is also a good time to make some channel tone control adjustments to tailor the sound of the individual performers and instruments. Next after setting each individual, have the performers run through a song or a portion of the show. Don't hesitate to stop the performers if something needs to be adjusted or if an individual performer or microphone needs to be heard solo again. Remember the sound check is not a rehearsal, but a system check, a time to work the bugs out of the system so the show can go smoothly. It is always a good idea for the mixer operator to have a microphone to inform the performers of what is needed during the sound check. If a monitor system is being used, the mixer operator's microphone should only be heard through the monitors when addressing the on stage performers, especially if something needs to be checked during the show. If the sound check is allowed to run through its full course, the system should run smoothly at show time. 4 SPEAKER SYSTEM SPEAKERS RIGHT LEFT 2Ω per channel 4Ω 4Ω MINIMUM IMPEDANCE 250 250 WATTS MAIN OR STEREO LEFT MADE IN THE USA MONITOR OR STEREO RIGHT 8 SPEAKER SYSTEM 2Ω per channel MAIN OR STEREO LEFT SPEAKERS RIGHT LEFT 4Ω 4Ω MINIMUM IMPEDANCE 250 250 WATTS MADE IN THE USA MONITOR OR STEREO RIGHT 4Ω SPEAKER 4Ω SPEAKER 8Ω SPEAKER 8Ω SPEAKER 4Ω SPEAKER 4Ω SPEAKER 8 Ω SPEAKER 8 Ω SPEAKER 8 Ω SPEAKER 8 Ω SPEAKER 8 Ω SPEAKER DSP EFFECTS 8 Ω SPEAKER 456 3 7 2 8 1 9 0 10 MAIN 4 56 3 7 2 8 1 9 0 10 MONITOR POWER AMPS MAIN L / R MONO & MONITOR CX1272 DIGITAL EFFECTS PROCESSOR 4 56 3 7 2 8 1 9 0 10 RTN 2 & TAPE 4 5 6 CLIP 4 5 6 REVERB 3 73 7 41 234 2 82 8 1 9 0 10 SEND 1 1 9 0 10 RETURN 1 FLANGE REV SELECT ECHO REV CHORUS REV Select from Reverb, Flange, Chorus, and Echo. Écho delays with reverb includes delay times of 50,100, 150, 250, 350, and 500 milliseconds. 123 123 23 412 23 412 56 1 56 1 TAPE DECKS AND EXTERNAL EFFECTS 456 3 7 2 8 1 9 0 10 MAIN 4 56 3 7 2 8 1 9 0 10 MONITOR POWER AMPS MAIN L / R MONO & MONITOR CX1272 DIGITAL EFFECTS PROCESSOR 4 56 3 7 2 8 1 9 0 10 RTN 2 & TAPE 4 5 6 CLIP 4 5 6 REVERB 3 73 7 41 234 2 82 8 1 9 0 10 SEND 1 1 9 0 10 RETURN 1 FLANGE REV SELECT ECHO REV CHORUS REV INSERT PRE EQ RTN 2 LEFT /MONO RIGHT /MONITOR LEFT RIGHT TAPE RETURN POWER PROTECT LEFT RIGHT CLIP POST EQ LINE OUT MONITOR EFF SND 2 TAPE SEND PHANTOM POWER The basic hook up is simple, using four (or two stereo) RCA cables. Plug the TAPE SEND on the mixer into the tape deck's inputs and the mixer's TAPE RTN's into the tape deck's outputs. With an external effects processor, plug a 1/4" cable from the EFF SEND output on the mixer into the input jack on the effects processor. Then from the outputs of the effects processor, plug one or both (for stereo) cables into the L/R EFFECTS RETURN. TAPE IN TWO-TRACK TAPE RECORDER TAPE OUT L OUT R MONO IN AUX EFFECTS PROCESSOR