Mackie 1202-VLZ4 Owners Manual - Page 14

1202VLZ4 [15] and phones [12] output­s. If you want the alt 3-4 signals to go back into the main mix, engage the a­ ssign to main mix [36] switch, and the ­control room/submix [34] level control becomes the one knob to control the ­levels of all the channels assigned to alt 3-4. Another way to do the same thing is assign the channels to the alt 3-4 mix, then patch out of the alt 3-4 output [16]back into an unused stereo channel line input [2]. If that's your choice, don't ever engage the mute/alt 3-4 switch on that stereo channel, or you'll have every dog in the neighborhood howling at your feedback loop. Another benefit of the alt 3-4 feature is that it can act as a "SIP" (Solo-In-Place): just engage a channel's mute/alt 3-4 switch and the alt 3-4 switch in the source matrix and you'll get that channel, all by itself, in the control room and phones. Mute/alt 3-4 is one of those controls that can bewilder newcomers, so take your time and play around with it. Once you've got it down, you'll probably think of a hundred uses for it! 26. Pan 31 Pan adjusts the amount of channel signal sent to the left versus the right outputs. On 30 mono channels (ch. 1-4 or 5-12 with connections to the L input only) these controls act as pan 29 pots. On ­stereo channels (5-12) with stereo connections to L and R ­inputs, the pan knob works like 28 the balance control on your home stereo. 27 Pan determines the fate of the main mix and alt 3-4 mix. With the pan knob hard left, the signal will feed either main 26 out L (bus 1) or alt output L (bus 3), depending on the position of the alt 3-4 switch. With the knob hard right, the signal feeds main out R (bus 2) or alt output R (bus 4). Constant Loudness ! ! ! The 1202VLZ4's pan controls employ a design called "Constant Loudness." It has nothing to do with living next to an all-night disco. As you turn the pan [26] knob from left to right (thereby causing the sound to move from the left to the center to the right), the sound will appear to remain at the same ­volume (or loudness). If you have a channel panned hard left (or right) and reading 0 dB, it must dip down about 4 dB on the left (or right) when panned center. To do otherwise (the way Brand X compact mixers do) would make the sound appear much louder when panned center. 3-Band EQ The 1202VLZ4 has 3-band equalization at carefully selected points - low shelving at 80 Hz, mid peaking at 2.5 kHz, and hi shelving at 12 kHz. "Shelving" means that the circuitry boosts or cuts all frequencies past the ­specified frequency. For example, rotating the low EQ knob 15 dB to the right boosts bass starting at 80 Hz and continuing down to the lowest note you never heard. "Peaking" means that certain f­requencies form a "hill" around the center f­requency - 2.5 kHz in the case of the mid EQ. 27. Low EQ This control gives you +15 up to 15 dB boost or cut +10 below 80 Hz. The circuit is +5 flat (no boost or cut) at the 0 center detent position. This -5 frequency represents the -10 punch in bass drums, bass -15 20Hz 100Hz 1kHz 10kHz 20kHz guitar, fat synth patches, Low EQ and some really serious +15 male singers. +10 Used in conjunction with the low cut [3] switch, you can boost the low EQ without injecting a ton of subsonic debris into the mix. +5 0 -5 -10 -15 20Hz 100Hz 1kHz Low EQ with Low Cut 10kHz 20kHz 28. Mid EQ Short for "midrange," +15 +10 this knob provides 15 dB +5 of boost or cut, centered 0 at 2.5 kHz, also flat at the -5 center detent. Midrange -10 EQ is ­often thought of as -15 the most dynamic, because 20Hz 100Hz 1kHz 10kHz 20kHz the frequencies that define Mid EQ any particular sound are almost always found in this range. You can create many interesting and useful EQ changes by turning this knob down as well as up. 14 1202VLZ4