Mackie 1402-VLZ Pro Owner's Manual - Page 12
Stereo Line Inputs, Effects: Serial or Parallel?, Serial, Parallel - tape input
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MIC 1 XDR MIC PRE MIC 2 XDR MIC PRE MIC 3 XDR MIC PRE MIC 4 XDR MIC PRE MIC 5 XDR MIC PRE MIC 6 XDR MIC PRE LEFT/MONO RIGHT 1 ALL BAL/UNBAL 1 TAPE TAPE INPUT OUTPUT L 2 2 R BAL/UNBAL L R BAL OR UNBAL LINE IN 1 LOW CUT 75 Hz 18dB/OCT U M-I1C0dGBAVIN BAL OR UNBAL LINE IN 2 LOW CUT 75 Hz 18dB/OCT U M-I1C0dGBAVIN BAL OR UNBAL LINE IN 3 LOW CUT 75 Hz 18dB/OCT U M-I1C0dGBAVIN BAL OR UNBAL LINE IN 4 LOW CUT 75 Hz 18dB/OCT U M-I1C0dGBAVIN BAL OR UNBAL LINE IN 5 LOW CUT 75 Hz 18dB/OCT U M-I1C0dGBAVIN BAL OR UNBAL LINE IN 6 LOW CUT 75 Hz 18dB/OCT U M-I1C0dGBAVIN STEREO AUX RETURN MONO L BAL OR UNBAL R AUX SEND MONO L BAL OR UNBAL R MONO L BAL OR UNBAL R MAIN OUT MONO L BAL OR UNBAL R 0 60 +15dB -45dB TRIM 0 60 +15dB -45dB TRIM 0 60 +15dB -45dB TRIM 0 60 +15dB -45dB TRIM 0 60 +15dB -45dB TRIM 0 60 +15dB -45dB TRIM LEVEL +4 -10 LINE IN 7-8 LEVEL +4 -10 LINE IN 9-10 LEVEL +4 -10 LINE IN 11-12 LEVEL +4 -10 LINE IN 13-14 STEREO LINE INPUTS (Channels 7-8, 9-10, 11-12 and 13-14) EFFECTS: SERIAL OR PARALLEL? These fully balanced inputs are designed for stereo or mono, balanced or unbalanced signals, from -10dBV to +4dBu. They can be used with just about any professional or semi-pro instrument, effect or tape player. To learn how signals are routed from these inputs: . To wire your own cables: . In the stereo audio world, an odd-numbered channel usually receives the "left signal." For example, you would feed the 1402-VLZ PRO's line inputs 7-8 a stereo signal by inserting the device's left output plug into the Channel 7 jack, and its right output plug into the Channel 8 jack. When connecting a mono device (just one cord), always use the Left (MONO) input and plug nothing into the Right input - this way the signal will appear on both sides. This trick is called "jack normalling" . The next two sections toss the terms "serial" and "parallel" around like hacky sacks. Here's what we mean by them. "Serial" means that the entire signal is routed through the effects device. Examples: compressor/limiters, graphic equalizers. Linelevel sources can be patched through a serial effects device before or after the mixer or, more conveniently, through the channel insert jacks located on the rear of the mixer (INSERT SEND/RETURN) . "Parallel" means that a portion of the signal in the mixer is tapped off to the device (AUX SEND), processed and returned to the mixer (AUX RETURN) to be mixed with the original "dry" signal. This way, multiple channels can all make use of the same effects device. Examples: reverb, digital delay. (See diagrams below.) Serial Insert Send Dry Signal Signal Processor Insert Return Serial Device (e.g. Compressor) Processed Signal Parallel Aux Send Signal Processor Parallel Device (e.g. Reverb) Aux Return Wet Signal Dry Signal(s) Channel Path Dry Signal(s) Output Section Processed Signal Mix Stage 12