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13

Owner’s Manual

The USB routing capabilities are as follows:

USB input TO the mixer – playback:

(1) Stereo channel 23/24 (on the 2404VLZ4) and 

31/32 (on the 3204VLZ4) features a USB button, so one 
may route computer output (such as iTunes

®

) down the 

last stereo channel of the board. This stereo signal may 

then be EQ'd, sent to auxiliaries (i.e. to feed monitors, 
headphones or effects) and is routable to mains and/or 

 

subgroups via the fader routing features that are  

available on all other channels. In short, this signal may 

be sent to nearly any desired output or pair of outputs. 
Additionally, the gain knob at the top of this channel 
strip adjusts the USB input level to the mixer to achieve 
an optimal signal level.

(2) The 2-Track Return section features a “flip” 

switch, so a “Tape” source (connected via RCA cables, 
such as an iPod

®

) or the USB signal from a computer 

(playing Windows Media Player

®

 files, for example) may 

be routed to the main bus. This section also features a 
solo button and input level adjustment for fading house  
music up and down between bands, at a house of    
worship, or any other event where this may be  

necessary.

USB output FROM the mixer – recording, etc:

(1) A variety of different signals may be recorded 

via the USB output section, depending on the setup. In 
the 'USB OUT' section, the switch on the left [51] will 
select either Groups 1-2 or the main mix to feed USB 
output channels 1-2. The second switch (to the right) 
will select either Groups 3-4 or Aux 5-6 to feed USB 
output channels 3-4.

For example, with both USB ouput switches in the  

default position (up), true 4-track recording may be  
accomplished via routing to subgroups 1-4. The USB tap 
points for the subgroups are pre-fader (also pre-insert) 
and post-compressor. The signals will show up on the 
DAW dependent upon how they are panned on the  

channels. 

In other words, if subgroups 1 and 2 are used to sub

-

mix drums and those drums have a stereo image 

 

(e.g. overheads and toms pan according to desire), this 
stereo image is retained in the DAW inputs (assuming 
subgroup 1 is set to "L" and subgroup 2 is set to "R"). 
Any adjustments made to the subgroup drum levels  
during the show only pertain to the live show itself; 
recording levels are not adjusted in the DAW unless they 
are adjusted on the channels. However, compression  
settings made on the mixer will apply to the recording.

Likewise, it is possible to record the main mix to take 

home a copy of the live show. These levels are also   
pre-main fader. Therefore, levels may be mixed up or 
down in the DAW later depending on the needs of the 
recording versus the live show. The end result is that 
fade-ins and/or fade-outs made during the show do not 

affect recorded levels.

And finally, it is possible to route the aux 5-6 (again, 

pre-fader) mixer signals into a DAW or plug-in host. 
From there, re-route the output of the DAW (or plug-in 
host) back into the mixer. Voilà...a powerful outboard 
effects unit!

Success here is partially dependent upon the 
computer's speed. It needs to be fast enough 
to run at low buffer sizes so that there is no 

noticeable latency between the input signal and, say, 
the reverb return. This kind of flexible routing allows 
for a variety of choices: running aux 5-6 as effects sends 
to outboard gear, internal effects sends (native to the 
board), DAW plug-ins (via USB) or as monitor mix 
feeds...a truly powerful feature! Be sure to review the 
software requirements on www.720trees.com to confirm 
that the latest device drivers are currently in use.

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

20

19

19

19

18

18

18

17

17

17

16

16

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15

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15

14

14

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9

9

9

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8

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6

6

6

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

Summary of Contents for VLZ4

Page 1: ...4 3 3 3 2 2 2 1 1 1 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 ONYX MIC PREAMPS LINE BAL UNBAL INSERTS TIP SEND RING RETURN LINE BAL UNBAL INSERTS TIP SEND RING RETURN ONYX MIC PREAMPS UNBALANCE...

Page 2: ...rence regulations of the Canadian Department of Communications ATTENTION Le pr sent appareil num rique n met pas de bruits radio lectriques d passant las limites applicables aux appareils num riques d...

Page 3: ...equency 19 34 Low EQ 19 35 High Mid EQ Level 19 36 Low Mid EQ Level 19 37 Pan 19 38 Mute 19 39 OL LED 19 40 Sig LED 20 41 Solo 20 42 Assign 20 43 Channel Fader 20 44 FX1 And FX2 20 45 USB Switch 20 2...

Page 4: ...5 6 Convenient stereo return to mains for music playback or return to channel to implement EQ auxes and more PFL AFL solo modes 60mm long wearing log taper faders High resolution 12 segment stereo me...

Page 5: ...upporttofind FAQs manualsandotherusefulinformation Emailusat techmail loudtechinc com Telephone1 800 898 3211tospeakwithoneofoursplendidtechnicalsupportchaps MondaythroughFriday normalbusinesshours Pa...

Page 6: ...x level and monitor level when making connections to the mixer Better yet turn off the power When shutting down turn off any power amplifiers or powered speakers first When powering up turn them on la...

Page 7: ...AL 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...

Page 8: ...through a pair of MR8mk3 s and nod their collective heads to the beat 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 INSER...

Page 9: ...instance which don t need external power and aren t affected by it anyway Phantom power may be selected by pressing up on the mixer s phantom 21 switch Never plug single ended unbalanced micro phones...

Page 10: ...annel signal can go out of the insert jack to an external device be processed and come back in on the same insert jack To do this requires a standard insert cable that must be wired thusly Tip Send ou...

Page 11: ...nserts 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 group send masters 74 and after t...

Page 12: ...e 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 ch...

Page 13: ...is set to L and subgroup 2 is set to R Any adjustments made to the subgroup drum levels during the show only pertain to the live show itself recording levels are not adjusted in the DAW unless they a...

Page 14: ...o the mic input jacks if phantom power is on Do not plug instrument outputs into the mic XLR input jacks with phantom power on unless you know for certain it is safe to do so Be sure the main level 75...

Page 15: ...15 15 U 15 15 U 20 20 U 20 20 U AUXMASTER LR STEREO RETURNS EQ HI 12k 15 15 U 15 15 U LOW 80Hz 15 15 U FREQ MID 200 2k 800 100 8k EQ HI 12k 15 15 U 15 15 U LOW 80Hz 15 15 U FREQ MID 200 2k 800 100 8k...

Page 16: ...Applying low cut removes all those problems so you can add low EQ without blowing your subwoofers 25 Pad 20 dB Switch In most cases the pad switch will be disengaged However microphones and balanced...

Page 17: ...e chance of distortion due to overloading the input signals Dynamic range is the difference in level between the quietest and loudest parts of a song A compressor squeezes the dynamic range resulting...

Page 18: ...ts or cuts all frequencies past the specified frequency For example the low EQ boosts bass frequencies below 80 Hz and continuing down to the lowest note you never heard Peaking means that certain fre...

Page 19: ...5 U 15 15 U 15 15 U 15 15 U AUXMASTER EQ HI 12k 15 15 U 15 15 U LOW 80Hz 15 15 U FREQ MID 200 2k 800 100 8k EQ HI 12k 15 15 U 15 15 U LOW 80Hz 15 15 U FREQ MID 200 2k 800 100 8k EQ HI 12k 15 15 U 15 1...

Page 20: ...37 they are used to determine the destination of the channel s signal With the pan knob at the center detent the left and right sides receive equal signal levels main mix L R group 1 2 and group 3 4...

Page 21: ...four signals may be recorded simultaneously and a stereo mix returned to the mixer for playback The six auxes receive signals from the channels via the channel aux sends 27 29 Auxes 1 4 may also be f...

Page 22: ...phantom power which lets the mixer send low current DC voltage to the mic s electronics through the same wires that carry audio Semi pro condenser mics often have batteries to accomplish the same thi...

Page 23: ...ase forgive its rudeness it is only trying to help and wants to be your friend 60 Solo Mode Engaging a channel s solo switch 41 will cause this dramatic turn of events Any existing source selection is...

Page 24: ...1 to aux 2 and to main knobs 62 fully counter clockwise to avoid double bussing The talkback feature allows the engineer to communicate with the talent either through the phones output 17 or the aux 1...

Page 25: ...1 Wrm 300ms 7 Warm Theater 19 Delay 2 Brt 250ms 8 Bright Stage 20 Delay 2 Wrm 200ms 9 Warm Hall 21 Delay 3 Brt 175ms 10 Concert Hall 22 Delay 3 Wrm 150ms 11 Cathedral 23 Chorus Dly 300ms 12 Gated Reve...

Page 26: ...e is no need to hold down the switch es when using the talkback feature Simply engage the switch es and begin talking But don t forget to disengage the switch when you re done talking to them or they...

Page 27: ...for example make sure that both group faders ride together to maintain the left right balance 75 Main Mix This stereo fader allows you to adjust the levels of the main mix signals sent to the XLR and...

Page 28: ...ise Turn the channel gains down one by one If the sound disappears it s either that channel or whatever is plugged into it so unplug whatever that is If the noise disappears it s from your whatever Po...

Page 29: ...two mic preamps 2 1 SHIELD COLD HOT 3 SHIELD COLD HOT 3 2 1 Balanced XLR Output Connector SLEEVE TIP SLEEVE TIP RING RING TIP SLEEVE RING Balanced 1 4 TRS Connector You can cook up your own adapter fo...

Page 30: ...ll not activate the jack switch and will not open the insert loop in the circuit thereby allowing the channel signal to continue on its merry way through the mixer This allows you to tap out the chann...

Page 31: ...15 dB sweep 100 Hz 8 kHz High 15 dB 12 kHz Low Cut Filter 18 dB octave 3 dB 100 Hz 4 Band Equalization stereo channels Low 15 dB 80 Hz Low Mid 15 dB 400 Hz High Mid 15 dB 2 5 kHz High 15 dB 12 kHz USB...

Page 32: ...ch LED To Aux 2 Aux 6 Aux 3 Aux 4 Aux 5 Aux 6 Aux 1 Aux 2 HPF In bypass MID Phantom Power To All Mics Phantom Power L R Int FX 1 Out L FX 1 Line LO MID MID 80 400 2 5K 12K HI LO MID MID 80 400 2 5K 12...

Page 33: ...ect Aux 1 Level Preset select FX Preset Display 1 2 Solo Logic Solo USB Out FX 1 Bypass Logic In FX 1 Out L Out R R L Tap FX Mute Active L R Tape Out Main level Aux 3 pre post Aux 4 pre post 3 4 Aux 3...

Page 34: ...5 5 U 60 dB OO SOLO 1 2 3 4 LR OL 20 30 20 10 10 40 50 5 5 U 60 dB OO SOLO 1 2 3 4 LR OL 20 30 20 10 10 40 50 5 5 U 60 dB OO SOLO 1 2 3 4 LR OL 20 30 20 10 10 40 50 5 5 U 60 dB OO SOLO 1 2 3 4 LR OL 2...

Page 35: ...15 15 U FREQ MID 200 2k 800 100 8k EQ HI 12k 15 15 U 15 15 U LOW 80Hz 15 15 U FREQ MID 200 2k 800 100 8k EQ HI 12k 15 15 U 15 15 U LOW 80Hz 15 15 U FREQ MID 200 2k 800 100 8k EQ EQ EQ HI 12k 15 15 U...

Page 36: ...4 Bus Dimensions 6 U 6 0 in 153 mm 1 8 in 46 mm 29 4 in 748 mm 19 1 in 486 mm 6 0 in 153 mm WEIGHT 31 0 lb 14 1kg 6 0 in 153 mm 1 8 in 46 mm 38 0 in 964 mm 19 1 in 486 mm 6 0 in 153 mm WEIGHT 39 0 lb...

Page 37: ...tch to the right will select either Groups 3 4 or Aux 5 6 to feed USB output channels 3 4 For example with both USB ouput switches in the default position up true 4 track recording may be accomplished...

Page 38: ...eflections that would be found in a very large stone walled house of worship Gives amazing depth to choirs wind instruments organs and soft acoustic guitars 12 Gated Reverb This preset incorporates an...

Page 39: ...vice representative will at its option either repair or replace any such nonconforming product provided that Customer gives notice of the noncompliance within the Warranty Period to the Company at www...

Page 40: ...16220 Wood Red Road NE Woodinville WA 98072 USA Phone 425 487 4333 Toll free 800 898 3211 Fax 425 487 4337 www 720trees com...

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