Mackie 1642-VLZ Pro Owner's Manual - Page 21

OO OO OO OO OO AUX 1, 2, 3, & 4 These four knobs tap a portion of each channel's signal, mix them together and send them to the AUX SEND outputs . They are off when turned fully down, deliver unity gain at the center detent, and can provide up to 15 dB of gain turned fully up. Chances are you'll never need this extra gain, but it's nice to know it's there if you do. The AUX SEND outputs are then patched to parallel effects processor inputs or stage monitor amp inputs. AUX SENDS 1 and 2 levels are controlled not only by the channel's AUX knobs, but also by the AUX SEND master knobs . AUX SENDS can also be used to generate separate mixes for recording or "mix-minuses" for broadcast. By using AUX 1 or 2 in the PRE mode , these mix levels can be obtained independently of a channel's fader settings. We recommend going into a stereo reverb in mono and returning in stereo. We have found that on most "stereo" reverbs, the second input just ties up an extra aux send and adds nothing to the sound. There are exceptions, so feel free to try it both ways. Should you choose to use two aux sends, use the "odd" AUX (1 or 3) to feed its left input and the "even" AUX (2 or 4) to feed the right input. Remember, if you're also dealing with a stereo source signal, you'll want to follow the sides - use the odd AUX on the channel carrying the left side and the even AUX on the channel carrying the right. PRE This switch determines the tap point of AUX 1 and 2. Generally, "post" sends are used to feed effects devices, and "pre" sends are used to feed your stage monitors. See the "Pre vs. Post" diagram below. AUX 3 and 4 are always in post mode. In post mode (switch up), AUX 1 and 2 will follow the EQ, LOW CUT, fader and MUTE settings. If you fade the channel, you fade the send. This is a must for effects sends, since you want the levels of your "wet" signals to follow the level of the "dry." In PRE mode (switch down), AUX 1 and 2 follow the TRIM and LOW CUT settings only. EQ, PAN, fader and MUTE settings have no effect on the PRE sends. This is the preferred method for setting up stage monitor feeds - they'll be controlled independently of the fader and mute moves. TRIM U 15 16 -20 +20 AUX U 1 +15 U 2 +15 PRE U 3 +15 U 4 +15 EQ U HI 12k -15 +15 U HI MID 3K -15 +15 U -15 +15 U LOW MID 800Hz LOW 80Hz -15 +15 PAN Pre Vs. Post LR 15-16 MUTE dB OL 10 5 -20 U SOLO 5 10 1-2 20 30 3-4 40 50 60 L /R EFX B Stereo Channel 21