OUTPUT SECTION DESCRIPTION
MAIN MIXSelections made in the SOURCE matrix deliver
stereo signals to the CONTROL ROOM, PHONES
As the name implies, this knob controls the
and meter display. With no switches engaged,
levels of signals sent to the main outputs: XLR
there will be no signal at these outputs and no
LEFT and RIGHT , 1�4" MAIN OUTS and RCA
meter indication.
TAPE OUTPUT . All channels and AUX RE-
The exception to that is the SOLO function .
TURNS that are not muted or turned fully down
Regardless of the SOURCE matrix selection,
will wind up in the MAIN MIX.
engaging a channelOs SOLO switch will replace
Fully counterclockwise is off, the center detent
that selection with the SOLO signal, also sent
is unity gain, and fully clockwise provides 10dB
to the CONTROL ROOM, PHONES and right
additional gain. This additional gain will typically
meter (the left meter becomes inactive). This
never be needed, but once again, itOs nice to know
is what makes the Level-Setting Procedure
itOs there. This is the knob to turn down at the end
so easy to do.
of the song when you want The Great Fade-Out.
WARNING: Engaging
VLZ MIX ARCHITECTUREboth the TAPE and
ASSIGN TO MAIN MIX
When designing a mixing cir-
buttons in the SOURCE
cuit, the lowest noise and best
matrix can create a feed-
crosstalk specs are achieved by
back path between TAPE INPUT and TAPE
using Very Low Impedance
OUTPUT. Make sure your tape deck is not
(VLZ). To implement VLZ in a mixer, the power sup-
in record, record-pause, or input monitor
ply must be able to deliver plenty of current to the
mode when you engage these switches, or
circuitry. ThatOs why those Owall wart� mixers are of-
make sure the CONTROL ROOM / SUBMIX
ten noisy�they canOt power a VLZ circuit.
level knob is fully counterclockwise (off).
At Mackie, audio quality is much more important
than the price of wall warts. All of our mixers employ
VLZ and built-in power supplies that deliver more
UU
than enough current, resulting in sonic specifications
that rival consoles upwards of $50,000!
1
OO+10OO+20
NORMALLED
AUX 1 MASTERU
SOURCE MATRIX2PRE
POST
AUX 1EFX TOAUX
Typically, the engineer sends the MAIN MIX toSELECTMONITOROO+20RETURN
an audience (if live) or a mixdown deck (if record-POWER
LEFT RIGHT
ing). But what if the engineer needs to hearCONTROL0dB=0dBu
ROOM
something other than the MAIN MIX? With theSOURCE28CLIP
10
New Improved 1202-VLZ PRO, the engineer has
7
MAIN MIX
several choices of what to listen to. This is one of4
those tricky parts, so buckle up.2
ALT 3�40
Via the SOURCE switches, you can choose to
2
listen to any combination of MAIN MIX, ALT 3-44
TAPE
7LEVEL
and TAPE. By now, you probably know what theSET
10
MAIN MIX is. ALT 3-4 is that additional stereo mix20
bus . TAPE is the stereo signal coming in from30
ASSIGN
the TAPE INPUT RCA jacks .TO MAIN MIXRUDE
SOLO
LIGHT
UU
OOMAXOO+10dB
CTL ROOM/SUBMIXMAIN MIX
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ACEC
