Mackie Onyx 820i Owner's Manual - Page 20

1 ONYX MIC PRE 8 2 ONYX MIC PRE 3-4 ONYX MIC PRE AUX SEND BAL/UNBAL 1 12 AUX RETU 26. MID EQ FREQUENCY (Ch. 1 and 2) 1 BAL/UNBAL This knob sets the center frequency of the mid EQ L level control [27]. This is sweepable from 100 Hz to (MONO) 13 8 kHz. 9 INSERT INSERT 2 L (MONO) BAL/UNBAL LINE IN 5-6 R LINE IN 7-8 10 18 1 LINE BAL/UNBAL LINE HI-Z 2 LINE BAL/UNBAL 21LINE HI-Z LINE 19 2048V 30 48V 30 U 20 40 U 20 40 30 20 23U GAIN 60 U GAIN 60 U -20dB +40dB -20dB +40dB R +4dB -10dB 48V 40 MIC GAIN 60 L (MONO) BAL/UNBAL R L (MONO) BAL/UNBAL R U U GAIN -20dB +20dB GAIN 22 -20dB +20dB 24SEND PRE POST U 25 -15 +15 1k 26 100 8k U 27 -15 +15 U 31 -15 +15 EQ HIGH 12kHz FREQ MID LOW 80Hz AUX SEND U PRE POST EQ SEND U PRE POST EQ SEND U PRE POST EQ -15 +15 1k 100 8k U -15 +15 U HIGH 12kHz -15 +15 U 28 FREQ -15 +15 U 29 MID -15 +15 U HIGH 12kHz -15 +15 HIGH MID U 2.5KHz 30 LOW MID 400Hz -15 +15 U HIGH 12kHz MID 2.5kHz -15 +15 LOW 80Hz AUX -15 +15 LOW 80Hz AUX -15 +15 LOW 80Hz AUX SEND INPUT LINE U FW 1-2 -15 +15 HIGH 12kHz U -15 +15 MID 2.5kHz U -15 +15 LOW 80Hz AUX Once this is set, the mid EQ level can be adjusted with the mid EQ level control. Most of the root and lower harmonics that define a sound are located in the 100 Hz-8 kHz frequency range, and you can create drastic changes with these two knobs. Many engineers use mid EQ to cut midrange frequencies, not boost them. One popular trick is to set the mid fully up, turn the frequency knob until you find a point where it sounds just terrible, then back the mid down into the cut range, causing those terrible frequencies to disappear. Sounds silly, but it works. Sometimes. 27. MID EQ LEVEL (Ch. 1 and 2) The mid EQ provides up to +15 15 dB of boost or cut, and it is +10 +5 also flat (no boost or cut) at the 0 detent. The frequency at which -5 the cut or boost occurs is set by -10 the mid EQ frequency -15 20Hz 100Hz 1kHz 10kHz 20kHz control [26]. 1 32 MAX OO OO 2 33 L MAX PAN R OO OO 1 MAX 2 MAX PAN L R OO OO 1 MAX 2 MAX PAN L R OO OO 1 MAX 2 MAX PAN L R OO OO 1 MAX 2 MAX PAN L R 35 34 MUTE OL ALT 3-4 - 20 U MUTE OL ALT 3-4 - 20 U 36 OO +10dB LEVEL 37 SOLO 1 OO +10dB LEVEL SOLO 2 OO MUTE OL ALT 3-4 - 20 U +10dB LEVEL SOLO 3-4 OO MUTE OL ALT 3-4 - 20 U +10dB LEVEL SOLO 5-6 OO MUTE OL ALT 3-4 - 20 U +10dB LEVEL SOLO 7-8 25. HIGH EQ The high EQ provides up to +15 15 dB of boost or cut above +10 +5 12 kHz, and it is also flat (no 0 boost or cut) at the detent. Use -5 it to add sizzle to cymbals, an -10 -15 overall sense of transparency, 20Hz 100Hz 1kHz 10kHz 20kHz or an edge to keyboards, vocals, guitar and bacon frying. Turn it down a little to reduce sibilance or to mask tape hiss. 28. HIGH MID EQ LEVEL (Ch. 3 and 4) The high mid EQ provides up to 15 dB of boost or cut at 2.5 kHz, and it is flat at the detent. 29. LOW MID EQ LEVEL (Ch. 3 and 4) The low mid EQ provides up to 15 dB of boost or cut at 400 Hz, and is flat at the detent. 30. MID EQ LEVEL (Ch. 5/6 and 7/8) The mid EQ provides up to 15 dB of boost or cut at 2.5 kHz, and is flat at the detent. 31. LOW EQ The low EQ provides up to +15 15 dB of boost or cut below +10 +5 80 Hz. The circuit is flat at the 0 center detent position. This -5 frequency represents the punch -10 -15 in bass drums, bass guitar, fat 20Hz 100Hz 1kHz 10kHz 20kHz synth patches, and some really serious male singers who eat raw beef for breakfast. 20 Onyx 820i