Patchbay Description; E-Z Interfacing; Mic/Line Input Flexibility; Mic Inputs - Mackie 1642-VLZ PRO Owner's Manual

At the risk of stating the obvious, this is
where you plug everything in: microphones,
line-level instruments and effects, and the ulti-
mate destination for your sound: a tape
recorder, PA system, etc. Many of the features
described in this section are on top of the
mixer, but some are on the rear panel.
1642-VLZ PRO, you can patch anything almost
anywhere, with nary a care. Here's why:
• Every input and output is balanced
(except inserts, phones and RCA jacks).
• Every input and output will also accept
unbalanced lines (except XLR jacks).
• Every input is designed to accept virtually
any output impedance.
• The main left and right mix outputs can
deliver 28dBu into as low as a 600 ohm load.
• All the other outputs can deliver 22dBu
into as low as a 600 ohm load.
• All the outputs are in phase with the inputs.
All we ask is that you perform the Level-Setting
Procedure
sound source. So stop worrying and start mixing!
MIC AND LINE INPUT FLEXIBILITY
Channels 1-8 are mono channels with MIC
and LINE inputs, featuring our new XDR Ex-
tended Dynamic Range mic preamp circuitry.
Channels 9-10 and 11-12 are stereo pairs with
left and right LINE inputs and a single MIC in-
put feeding each pair. Channels 13-14 and
15-16 are stereo pairs with LINE inputs only.

MIC INPUTS

We use phantom-powered, balanced micro-
phone inputs just like the big studio mega-
consoles, for exactly the same reason: This
kind of circuit is excellent at rejecting hum
1 2 3
MIC MIC MIC MIC
LINE IN LINE IN LINE IN LINE IN
BAL BAL BAL
UN- UN- UN-
BAL BAL BAL
INSERT INSERT INSERT INSERT
10

PATCHBAY DESCRIPTION

E-Z INTERFACING

Concerned about levels,
balancing, impedances, po-
larity, or other interface
goblins? Don't be. On your
every time you patch in a new
4 5 6 7
MIC MIC MIC
LINE IN LINE IN LINE IN
BAL BAL BAL
UN- UN- UN-
BAL BAL BAL
INSERT INSERT INSERT
and noise. You can plug in almost any kind of
mic that has a standard XLR-type male mic
connector. Always be sure to perform the
Level-Setting Procedure
nals are routed from these inputs:
wire your own, connect them like this:
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 1642-VLZ PRO's mic inputs
will handle almost any kind of mic level you
can toss at them, without overloading.
A WORD ABOUT PHANTOM POWER
Most condenser mics require phantom power,
where the mixer sends low-current DC voltage to
the mic's electronics through the same wires
that carry audio. The 1642-VLZ PRO's phantom
power is globally controlled by the PHANTOM
switch on the rear panel
Semipro condenser mics often have batter-
ies to accomplish the same thing. "Phantom"
owes its name to an ability to be "unseen" by
dynamic mics (Shure
stance) that don't need external power and
aren't affected by it anyway.
electronic devices into the MIC input jacks if
the phantom power is on.
8 9-10 11-12
MIC MIC MIC
LINE IN LINE IN 9 LINE IN 11
MONO MONO
BAL BAL BAL BAL
UN- UN- L UN- L UN-
BAL BAL BAL BAL
INSERT LINE IN 10 LINE IN 12
R R
. To learn how sig-
SHIELD
HOT
3
COLD
SHIELD
1
COLD 3
2
HOT
1
3
2
.
® SM57/SM58, for in-
Unless you know for
certain it is safe to do so,
never plug single-ended
(unbalanced) micro-
phones, instruments or
TAPE TAPE
IN OUT
LAMP
LEFT LEFT
16-CHANNEL MIC/ LINE MIXER
WITH PREMIUM XDR
12V
0.5A
RIGHT RIGHT
LINE IN LINE IN PHONES
MONO MONO
13 15
A
LEFT LEFT
BAL / BAL /
UNBAL UNBAL
14 16
B
RIGHT RIGHT
. If you
2
1
SHIELD
COLD
HOT
1642-VLZPRO
TM MIC PREAMPLIFIERS