Patchbay Description; Mic Inputs; Phantom Power; Line Inputs - Mackie 1202 VLZ Owner's Manual

MS1202-VLZ PATCHBAY DESCRIPTION
At the risk of stating the obvious, this is
where you plug everything in: microphones,
line-level instruments and effects, head-
phones, and the ultimate destination for your
sound: a tape recorder, PA system, etc.
MIC INPUTS (Channels 1–4)
We use phantom-powered, balanced
microphone inputs just like the big studio
mega-consoles, for exactly the same reason:
This kind of circuit is excellent at rejecting
hum and noise. You can plug in almost any
kind of mic that has a standard XLR-type male
mic connector. To learn how signals are
routed from these inputs: . If you wire your
own, connect them like this:
SHIELD
SHIELD
Pin 1 = Ground or shield
Pin 2 = Positive (+ or hot)
Pin 3 = Negative (– or cold)
Professional ribbon, dynamic, and con-
denser mics will all sound excellent through
these inputs. The MS1202-VLZ's mic inputs
will handle any kind of mic level you can toss
at them, without overloading. Be sure to per-
form the Level-Setting Procedure:
1
2
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
10 60 10 60
+10dB -40dB +10dB -40dB
TRIM TRIM
10

PHANTOM POWER

Most modern professional condenser mics
are equipped for Phantom Power, which lets
the mixer send low-current DC voltage to the
mic's electronics through the same wires that
carry audio. (Semipro condenser mics often
have batteries to accomplish the same thing.)
"Phantom" owes its name to an ability to be
"unseen" by dynamic mics (Shure SM57/SM58,
for instance), which don't need external power
and aren't affected by it anyway.
The MS1202-VLZ's phantom power is globally
controlled by the PHANTOM switch on the
rear panel
for channels 1-4 is turned on and off together.)
2
HOT
COLD 3 1
1
Do not plug instrument outputs into the
MIC input jacks with PHANTOM power on
unless you know for certain it is safe to do so.
3
COLD
2
HOT
LINE INPUTS (Channels 1–4)
SHIELD
1
3
COLD
These four line inputs share circuitry (but
2
HOT
not phantom power) with the mic preamps,
and can be driven by balanced or unbalanced
sources at almost any level. You can use these
inputs for virtually any signal you'll come
across, from instrument levels as low as –30dB
to operating levels of –10dBV to +4dBu, since
there is 30dB more gain available than on
channels 5–12. To learn how signals are
routed from these inputs:
.
3 4
MIC MIC
LEFT/
MONO
LEFT
BAL BAL
STEREO AUX RETURNS
OR OR
UNBAL UNBAL
LINE IN 4
LOW CUT LOW CUT
75 Hz 75 Hz
18dB/OCT 18dB/OCT
U U
10 60 10 60
+10dB -40dB +10dB -40dB
TRIM TRIM LINE IN 5-6
. (This means the phantom power
Never plug single-ended
(unbalanced) micro-
phones or instruments into
the MIC input jacks if the
PHANTOM power is on.
.
RIGHT
ALL BAL/UNBAL
1 1
L
RIGHT
2 2
R
TAPE TAPE
INPUT OUTPUT
AUX SEND
MONO MONO MONO
L L L
BAL BAL BAL
OR OR OR
UNBAL UNBAL UNBAL
R R R
LINE IN 7-8 LINE IN 9-10
BAL/UNBAL
L
R
MAIN OUTS
MONO
L
BAL
OR
UNBAL
R
LINE IN 11-12