12
VLZ4 4•Bus
14. Aux Inserts
These 1/4" TRS jacks are for connecting serial effects
such as compressors, equalizers, de-essers, or filters.
The insert point is after the mix amps, but before the
aux send masters [52] and the solo switch [60] (so you
may hear the external processor when soloing the aux
send). Refer to the description of the channel insert [3]
on page 10 to see how to make this connection.
15. Left/Right Monitor Outs
These 1/4" TRS jacks provide a balanced line-level
signal that may be used to provide an additional main
mix output or to monitor soloed channels.
Connect these outputs to the inputs of an amplifier,
powered speaker, headphone distribution amplifier,
or recording device.
16. Mono Monitor Out
This 1/4" TRS output connector provides a balanced
line-level signal that is a combination of the left and
right monitor out [15] signals (L+R). You may use this
for a separate mix that does not require a stereo feed,
or to simply test the monaural compatibility of the
stereo mix.
Connect these outputs to the inputs of an amplifier,
powered speaker, headphone distribution amplifier,
or recording device.
17. Headphone Out
This 1/4" TRS connector supplies the output to
stereo headphones. It is the same signal that is routed
to the monitor outputs [15-16]. The volume is
controlled with the phones knob [69], right next
to the monitor knob [68].
Whenever a solo switch [41, 49, 53, 55, 73] is engaged,
you will only hear the soloed channel(s), 2-track return,
aux(es), and/or group(s) in the headphones. This gives
you the opportunity to audition the channels before
they are added to the main mix. (Solo signals reaching
the headphones are not affected by the channel level or
main level (except in AFL mode), therefore turn down
the phones level first, as soloed channels may be loud.)
The phones output follows standard conventions:
Tip = Left channel
Ring = Right channel
Sleeve = Common ground
WARNING:
The headphone amp is loud, and
can cause permanent hearing damage. Even
intermediate levels may be painfully loud
with some headphones.
BE CAREFUL!
Always turn the
phones level control [69] all the way down before
connecting headphones or pressing a solo switch, or
doing anything new that may affect the headphone
volume. Then turn it up slowly as you listen carefully.
18. USB In/Out
The built-in USB interface allows for some
powerful and flexible routing. It is a 4x2 interface
allowing you to record up to four streams from the
mixer, or to input stereo playback from a computer
and route it to nearly any output or pair of outputs
on the mixer. To use this feature with a PC, first
download the PC ASIO driver from www.720trees.com.
If connecting to a Mac, the mixer will show up as a
4x2 device with no driver required.
POWER
ON
PHANTOM
ON
3
2
1
2
1
2
1
6
5
4
3
2
1
6
5
4
3
2
1
4
SUBGROUP OUTS
BAL / UNBAL
SUBGROUP INSERTS
TIP SEND, RINGRETURN
AUX INSERTS
TIP SEND, RING RETURN
AUX SENDS
BAL / UNBAL
3
2
1
4
L
R
MONO
L
R
MONO
STEREO RETURNS
BAL / UNBAL
21/22
23/24
BAL / UNBAL
BAL / UNBAL
MONITOR
MONO
MONITOR
L
R
100 - 240 V
50 - 60 Hz 55W
TALKBACK
MIC
RIGHT
MAIN OUT
INSERT
LINE
LEFT
MAIN OUT
INSERT
LINE
MONO
MAIN OUT
INSERT
LINE
LEVEL
OUTPUT
L
USB
R
L
R
TAPE
OUT
IN
TIP SEND
RING RETURN
TIP SEND
RING RETURN
TIP SEND
RING RETURN
BAL / UNBAL
BAL / UNBAL
BAL / UNBAL
20
20
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18
18
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17
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17
16
16
16
15
15
15
14
14
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5
5
5
4
4
4
3
3
3
2
2
2
1
1
1
ONYX MIC PREAMPS
LINE
(BAL / UNBAL)
INSERTS
(TIP SEND, RING RETURN)
L
INE
(BAL / UNBAL)
I
NSERTS
(TIP SEND, RING RETURN)
ONYX MIC PREAMPS
UNBALANCED
REVISION
SERIAL NUMBER
REPLACE WITH THE SAME TYPE FUSE AND RATING.
DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE
UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE.
DEBRANCHER AVANT DE REMPLACER LE FUSIBLE
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR
MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES FOR THE U.S. AND THE ICES-003 FOR CANADA. OPERATION
IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE
UNDESIRED OPERATION.
+6
U
3
14
20
2
13
1
16
11
17
12
22
7
7
9
18
21
19
4
15
5
10
8
8
8
6
