Mackie PPM1012 Owner's Manual - Page 22

R R /10 INPUT 11/12 /10 11/12 R FX RTN 1 R FX RTN 2 M MAIN OUT 4M2 POWER OO MAX 43LEVEL PHANTOM PPM1012 EQ HI 12kHz HI MID 2.5kHz LOW MID 400Hz LOW 80Hz AUX END MON 1 MON 2 FX 1 FX 2 PAN OO OO OO OO U 2 X 800W PROFESSIONAL POWERED MIXER -20 +20 GAIN 15 10 44 5 0 5 10 U EQ 15 -15 +15 U HI 12kHz 63 125 HI MID 2.5kHz 15 -15 +15 U 10 45 LOW 5 MID 400Hz 0 -15 +15 U 5 LOW 80Hz -15 +15 AUX U SEND MON 1 +15 U 60 MON 2 +15 U 10 15 63 125 61 FX 1 SIG/OL U OO +15 SEND MASTER 62FX 1 +15 U +15 63FX TAP DELAY 2 PAN INT FX 64 MUTE LR MAIN EQUALIZER 250 500 1K 2K 4K 8K MON 1 EQUALIZER EQ ASSIGN MAIN MON 2 4615 10 5 0 5 10 15 16K 15 10 5 0 POWER AMP 47 LIMITER A B MAIN METERS 0dB = 0dBu OL 15 10 6 3 48 0 2 4 7 10 20 30 L R LEVEL SET 49 RUDE SOLO 5 10 15 50 250 500 1K 2K 4K 8K 16K OO FX 2 SIG/OL U +15 SEND MASTER 01 PLATE REVERB 02 VOCAL PLATE 03 WARM ROOM 04 BRIGHT ROOM 05 WARM LOUNGE 06 SMALL STAGE 07 WARM THEATER 08 BRIGHT STAGE 09 WARM HALL 10 CONCERT HALL 11 CATHEDRAL 51 12 GATED REVERB BREAK 13 CHORUS 14 CHORUS + REVERB 15 DOUBLER 16 TAPE SLAP 17 DLY 1 BRIGHT (350ms) 18 DLY 1 WARM (300ms) 19 DLY 2 BRIGHT (250ms) 20 DLY 2 WARM (200ms) 21 DLY 3 BRIGHT (175ms) 22 DLY 3 WARM (150ms) 23 CHORUS + DLY (300ms) 52 24 REVERB + DLY (200ms) TAP TO EDIT U TAP DELAY INT FX MUTE MUTES CH 1-12 FX 1 TO MON 1 U +20 TAPE IN FX 1 TO MON 2 U OO OO OO +15 +15 56 56 OO POWER AMP MODE MON 1 MAINS MON 2 MON 1 53 A(L) B(R) STEREO MAIN LPF 54 120 100 180 75Hz 200Hz MONO OUT 55 MAX /10 dB 10 OL 5 +10 U 0 5 -20 10 20 30 SOLO 40 50 60 38 11/12 FX RTN 1 FX RTN 2 dB dB dB 10 10 10 OL 5 +10 U 0 5 -20 10 20 30 SOLO 40 50 60 5 U 5 10 41 20 30 SOLO 40 50 60 5 U 5 10 20 30 SOLO 40 50 60 MON 1 dB 10 5 U 5 10 20 30 SOLO 40 50 60 MON 2 SOLO MAIN dB 10 5 U 5 10 20 30 40 50 60 OO OO OO OO OO OO 57 57 58 58 59 With this constant-Q graphic EQ, the bandwidth (and Q) of a frequency band doesn't vary with the amount of boost or cut, and the adjustment of one slider has minimal effect on adjacent bands for all settings of the slider levels. (There's always some effect on adjacent bands to avoid too much variation or ripple between bands, but the constant-Q design keeps this fairly constant for all settings.) The position of the sliders gives a good indication of the frequency response across the audio band. With non-constant types of EQ (on other mixers), for example, if you're boosting 500 Hz and 2 kHz slightly, the 1 kHz band will also be boosted, even though the 1 kHz slider is in the flat position. 45. MON 1 EQUALIZER This 9-band, constant-Q, mono graphic equalizer allows you to adjust the monitor 1 mix line-level outputs [10] and the speaker-level output [3] if the internal amplifier is playing the monitor 1 mix. Each control allows up to 15 dB of boost and cut, with 0 dB (no change in level) at the center. The frequency bands are: 63, 125, 250, 500, 1 k, 2 k, 4 k, 8 k, and 16 kHz The EQ comes before the monitor 1 fader [58]. Adjust the EQ carefully, in case you over-do it and take the stage monitor 1 levels into overload. As with the channel EQ, just take it easy. There are no prizes for who can EQ the most (or is there?). If lots of EQ seems to be needed, then chances are your system can be improved by careful re-positioning of the microphones and other equipment. You will find this EQ useful for reducing feedback in the stage monitors. Stage monitors point towards the performers and their microphones, so feedback can often occur. You can reduce the level of the problem frequency band, by adjusting the graphic EQ sliders. 46. MAIN EQ ASSIGN This delightful little switch allows you to assign the main equalizer [44] to either the main mix when pressed out, or to monitor 2 when pressed in. This is useful in cases where your monitor 2 mix is having feedback troubles or needs your special touch. If you are not using the monitor 2 system, keep this switch out. The EQ will then operate on your main left and right mix. 47. POWER AMP LIMITER LEDs These independent LEDs turn on when power amplifier channel A or B is being overloaded internally and its internal automatic limiter is actively working. The LED will pulse in time with how much the limiter is being used. If the limiter LEDs come on and stay on for more than a second or two, it means the power supply has overheated and the limiter is holding the amp signal down to 1/4 power until the power supply cools down enough to release the limiter. If this happens, check there is good ventilation around the mixer, and that you are not cranking it too much. Also make sure that your speakers are OK, and are not less than 4 ohms impedance. 22 PPM1012