Mackie DFX 12 Owner's Manual - Page 16

DFX·12 12 CHANNEL INTEGRATED LIVE SOUND MIXER +12 +12 0 0 -12 -12 60 250 1K 3.5K 12K MAIN AUX 1 EQ BYPASS DIGITAL STEREO EFFECTS PROCESSOR U REVERSE OO +6 (EFFECTS TO STAGE MONITOR) GATE CATHEDRAL LG. HALL BYPASS LEVEL SET DELAY 1 DELAY 2 DELAY 3 DELAY 4 MD. HALL LG. PLATE MD. PLATE SM. ROOM OO U +6 AUX 1/MON SEND OO U +6 AUX 2/EFX SEND CHORUS FLANGE PHASER SPRING VOCAL ELIMINATOR BREAK SWITCH (MUTES ALL MIC CHANNELS) AUX 1 RETURN MUTE AUX 2/EFX RETURN MUTE CD/TAPE RETURN MUTE dB dB dB 10 10 10 5 5 5 U U U 5 5 5 10 10 10 20 20 20 30 30 30 40 40 40 50 50 50 60 60 60 OO OO OO 16 36. BREAK SWITCH Engage the BREAK switch (as in take-abreak) and the entire main microphone mix is switched off. The CD/TAPE (11) input is still active, so you can play your intermission CDs or tapes through the main outputs. On the DFX•12, line level inputs 9 and 10, 11 and 12 are also still active, and are summed with the CD/ TAPE input. During an intermission, you could play keyboards or a second tape deck into these line inputs. BREAK acts as a master mute switch for your microphones, so it is useful when moving microphones around on stage. It does not mute the AUX 1 (7) or AUX 2 (8) outputs, so turn down the master AUX SEND (41, 38) knobs if desired. 37. VOCAL ELIMINATOR SWITCH This switch allows you to eliminate the vocals from any CD or Tape selection playing in the CD/TAPE (11) inputs. In the UP position, the CD or Tape signals are not affected. In the DOWN position, any vocals which are centered in the normal stereo image will be attenuated. The circuit design uses phase cancellation of the vocal frequency range between the left and right channels. The effect is most noticeable on music material which has the vocals panned dead center. 38. AUX 2/EFX SEND Effects send signals are derived by each channel's AUX 2/EFX (22) control, summed together, then sent through this master control. It allows you to simultaneously adjust the signal levels out to the AUX 2/EFX SEND (8) output, and to the EMAC effects processor. Turned fully up, it provides 6 dB of gain, "U" is unity gain, and fully down is off. Use the individual channel AUX 2/EFX controls to adjust the amount of each channel's signal you want to go to the AUX 2/ EFX SEND or EMAC. Then use this master control to make sure the EMAC's LEVEL SET LED (39) never lights more than occasionally. 39. LEVEL SET LED This indicates when the EMAC is 6 dB below clipping. Just like the channel LEVEL SET LEDs (17), this should only light occasionally. If it blinks frequently, you should turn down the AUX 2/EFX SEND (38) control a little. If this LED never blinks, then turn the control up.