Stereo Line Inputs; Effects: Serial Or Parallel - Mackie 1202 VLZ Owner's Manual

1
2
MIC MIC MIC
BAL BAL
OR OR
UNBAL UNBAL
LINE IN 1 LINE IN 2 LINE IN 3
LOW CUT LOW CUT
75 Hz 75 Hz
18dB/OCT 18dB/OCT
U U U
10 60 10 60 10
+10dB -40dB +10dB -40dB +10dB -40dB
TRIM TRIM TRIM

STEREO LINE INPUTS

(Channels 5–6, 7–8, 9–10 and 11–12)
These fully balanced inputs are designed for
stereo or mono, balanced or unbalanced sig-
nals, from –10dBV to +4dBu. They can be used
with just about any professional or semipro
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 MS1202-VLZ's line
inputs 5-6 a stereo signal by inserting the device's
left output plug into the channel 5 jack, and its
right output plug into the channel 6 jack.
When connecting a mono device (just one
cord), always use the LEFT (MONO) input
(LINE IN jacks 5, 7, 9 or 11) and plug nothing
into the RIGHT input (LINE IN jacks 6, 8, 10 or
12)— this way the signal will appear on both
sides. This trick is called "jack normalling"
Serial device
Insert
Send
Dry Signal
Parallel device
Aux
Send
Dry Signal(s)
12
3 4
MIC
LEFT/ RIGHT
MONO
1
LEFT RIGHT
2
BAL BAL
STEREO AUX RETURNS
OR OR
UNBAL UNBAL
MONO
LINE IN 4
L
LOW CUT LOW CUT
75 Hz 75 Hz
18dB/OCT 18dB/OCT BAL
OR
UNBAL
R
U
60 10 60
+10dB -40dB
TRIM LINE IN 5-6
Here's what we mean by them.
"Serial" means that the entire signal is
routed through the effects device. Examples:
compressor/limiters, graphic equalizers. Line-
level sources can be patched through a serial
effects device before or after the mixer, or pref-
erably through the insert jacks located on the
rear panel (CHANNEL 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
(STEREO AUX RETURN) to be mixed with the
original "dry" signal. This way, multiple chan-
nels can all make use of the same effects
device. Examples: reverb, digital delay. (See
. diagrams below.)
Insert
Return
Signal Processor
(e.g., Compressor)
Aux
Return
Signal Processor
(e.g., Reverb)
Channel Path
ALL BAL/UNBAL BAL/UNBAL
1
L
2
R
TAPE TAPE
AUX SEND INPUT OUTPUT MAIN OUTS
MONO MONO MONO
L L
BAL BAL
OR OR
UNBAL UNBAL UNBAL
R R
LINE IN 7-8 LINE IN 9-10 LINE IN 11-12
EFFECTS: SERIAL OR
PARALLEL?
The next two sections toss
the terms "serial" and "paral-
lel" around like hacky sacks.
Processed
Signal
Output
Section
Wet Signal
Mix Processed
Stage Signal
Dry Signal(s)
L
R
L
BAL
OR
R
PHONES