Tape In (Level); Tape To Main Mix; Control Room Source; Control Room And Phones - Mackie 1642VLZ4 Owner's Manual

43
42

40. Tape In (Level)

This knob controls the level of the stereo signal com-
ing from the tape input [12] RCA jacks. Its range is off
when fully down, unity at the center detent, with 20
dB additional gain turned fully up, which may come in
handy if you've patched in a device with wimpy output
levels. After the level is determined, the stereo tape
signal can be sent to either of two places — the main
mix or the source [42] matrix.
41. Tape To LR
Engaging this switch is just like engaging the L-R
switch on a channel — the signal, stereo in this case, is
sent to the main mix. It does not interrupt other signals,
just adds itself to them. This switch can be very handy
in a live sound situation when you want to play soothing
elevator music to an anxious crowd.
40
41
WARNING: Engaging tape to main mix can
create a feedback path between tape input
[12] and tape output [11]. Make sure your
tape deck is not in record, record-pause or input
monitor mode when you engage this switch, or that
the tape in [40] level knob is turned fully down.
42. Source
Typically, the engineer sends the main mix to a live
audience or to a mixdown deck (if recording). But what
if the engineer needs to hear something other than the
main mix? With the 1642VLZ4, the engineer has several
choices of what to listen to.
Using these switches, you can choose to listen to any
combination of main mix, subs 1-2, subs 3-4 and tape.
Selections made here deliver stereo signals to the
control room, headphones, and meter display. These
signals are tapped off as follows — post-main mix fader,
post subgroup faders [38], and post-tape in [40] knob.
With no switches engaged, there will be no signal
at these outputs and no meter indication, with two
exceptions: solo and stereo return 4.
Regardless of the source selection, engaging a solo
switch will replace that selection with the solo signal,
also sent to the control room, headphones, and meter
display. This is what makes the level-setting procedure
so easy.
Now you know how to select the signals you want
to send to the engineer's control room and/or phones.
Once selected, these signals all pass through the same
level control, aptly named:

43. Control Room And Phones

These knobs control the level of the stereo
CR outs [9] and phones [10] outputs.
You can use the control room outputs for other
applications, such as an additional main mix output
with its own level control. However, should you do
this, be aware that if you engage a solo switch, it
will interrupt the mix:
Once again, engaging a solo [27] switch will cause
this dramatic turn of events: Any existing source [42]
matrix selections will be replaced by the solo signals,
appearing in the control room, headphones, and meters.
The audible solo levels are controlled by the solo [46]
level knob. The solo levels appearing on the meter
display are not controlled by anything — you wouldn't
want that. You want to see the actual channel level
on the meter display, regardless of how loud you're
listening.
Owner's Manual
19