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VLZ4 4•Bus 24-/32-Channel 4•Bus FX Mixer with USB

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2404VLZ4 and 3204VLZ4In pursuit of the ultimate “do-it-all” Live Sound Mixer, we threw in the kitchen sink and packed this bad boy with a full set of processors allowing you to travel “rack free” while still making professional sounding mixes.

For starters, we added not one, but TWO, of our patented Running Man FX processors (RMFX+™) featuring 24 “gig-ready” effects right into the board. This does not include useless effects such as “the warbler” or the “insanity delay”, but rather a suite of quickly accessible and useable reverbs, choruses and delays that make coloring your mix a breeze.

Additionally, both FX processors feature a tap delay, typically only available on an outboard rack. Delays may easily be sync’d with the song at the tap of a finger. And because we love flexible routing (hehe), the processed signal may be sent direct to the mains and monitors from the effects section or re-routed to the two stereo channels to bring them through the EQ and aux section, utilizing the 60mm fader to draw them into the mix.

But wait, there’s more! The VLZ4 4•Bus has eight (yes, eight!) single knob compressors to stop the dynamic signals from poking out of the mix. Four compressors are located on the last four mic inputs so that the most critical signals (such as vocals, snare drum, the occasional jaw harp or mountain goats) may be addressed. Plus, there are single knob compressors on each of the four subgroups so that grouped signals (such as a drum set or a choir of didgeridoos) may be blended together for paramount smoothness.

The VLZ4 4•Bus Series Mixers also feature a 4x2 USB recording and playback function. This means that up to four signals may be recorded simultaneously and a stereo mix returned to the mixer for playback.

Bottom line? You have an awesome mixer with VLZ4 sound quality, “built-like-a-tank” build quality and a recording and processing feature set that is unparalleled. Congratulations... and happy mixing!

APPLICATIONS:Live sound mixing, houses of worship, clubs, gymnasiums, banquet halls, conference rooms, boardrooms, multitrack studio and field recording, video post-production, multimedia applications, broadcast and many, many more.

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VLZ4 4•Bus 24-/32-Channel 4•Bus FX Mixer with USB

VLZ4 4•Bus SPECIFICATIONSMain Mix Noise(20 Hz–20 kHz bandwidth, 1/4" main out, channel gains @ unity, channel EQs flat, all channels assigned to main mix, odd channels panned left, even channels panned right.)

Main mix fader unity, channel faders down: –87.0 dBu (–91.0 dB Signal to Noise Ratio, ref +4 dBu) [2404VLZ4] –84.5 dBu (–88.5 dB Signal to Noise Ratio, ref +4 dBu) [3204VLZ4]

Main mix fader @ unity, channel faders @ unity: –81.5 dBu [2404VLZ4]

–80.0 dBu [3204VLZ4]

Total Harmonic Distortion (THD)(1 kHz @ 15 dB gain, 20 Hz–20 kHz bandwidth) Mic in to insert send <0.001% Mic in to main out <0.005%

Attenuation / Crosstalk(1 kHz relative to +10 dBu, 20 Hz–20 kHz bandwidth, mic in, 1/4" main out, gain @ unity)

Channel mute switch engaged –90 dBu

Channel fader down –88 dBu

Frequency ResponseMic input to main output (gain @ unity) +0, –1 dB, 20 Hz to 50 kHz +0, –3 dB, <10 Hz to >100 kHz

Equivalent Input Noise (EIN)(Mic input to insert send out, max gain)

150 termination –128.5 dBu 20 Hz–20 kHz

Common Mode Rejection Ratio (CMRR)1 kHz better than –70 dB

FEATURES:■ 4•Busmixerfeaturingoursignature high-headroom,low-noisedesign

■ Boutique-qualityOnyxmicpreamps •Ultra-wide60dBgainrange •128.5dBdynamicrange •+22dBulineinputhandling •Extendedfrequencyresponse •Distortionunder0.0007%[20Hz–50kHz]

■ ImprovedRFrejection,perfectforbroadcast applications

■ Phantompowerforcondensermics

■ Dedicatedinlinechannelcompressionforcritical inputs

■ High-headroomlineinputswithdedicatedinserts

■ 3-bandEQwithsweepablemidrange

■ 18dB/oct100Hzlow-cutfilteronmicinputchannels

■ Level,pan,soloandoverload/muteLEDson eachchannel

■ Foursubgroupsfeaturingdedicatedinline compressorsfortotaldynamiccontrol

■ Sixauxsendswithinserts,pre/postfader andinternal/externalFXsendoptions

■ Twostereoreturnsandfourgroupoutswithinserts

■ Dual32-bitRMFX+™processorsfeaturing 24“GigReady”reverbs,chorusesandtapdelay forliveapplications

■ Integrated4x224-bitUSBinterface •StreamsubgroupsormasterL/RtoyourPCorMac forrecording •Useyourfavoriteplug-inliveviaauxes5/6 •Convenientstereoreturntomainsformusic playbackorreturntochanneltoimplementEQ, auxesandmore

■ PFL/AFLsolomodes

■ 60mmlong-wearinglog-taperfaders

■ High-resolution12-segmentstereometers

■ Sealedrotarycontrolsresistdustandgrime

■ “Built-Like-A-Tank”ruggedsteelchassiswith powder-coatfinish

■ High-visibility,high-contrastcontrolsdeliver convenient“at-a-glance”visualfeedback

■ Universalpowersupplyforworldwideuse

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VLZ4 4•Bus 24-/32-Channel 4•Bus FX Mixer with USB

Maximum LevelsMic in +21 dBu

All other inputs +21 dBu

Main mix XLR out +27 dBu

All other outputs +21 dBu

ImpedancesMic in 2.7 k

Channel insert return 2.5 k

All other inputs 10 k or greater

Tape out <10

All other outputs 120

3-Band EQ (mono channels)High Shelving ±15 dB @ 12 kHz

Mid Peaking ±15 dB sweep 100 Hz – 8 kHz

Low Shelving ±15 dB @ 80 Hz

Low Cut Filter 18 dB/octave, –3 dB @ 100 Hz

4-Band EQ (stereo channels)High Shelving ±15 dB @ 12 kHz

Hi Mid Peaking ±15 dB @ 2.5 kHz

Low Mid Peaking ±15 dB @ 400 Hz

Low Shelving ±15 dB @ 80 Hz

USBFormat USB 1.1

I/O Stereo Input, 4 Channel Output

A/D/A 24 bit, 44.1 kHz / 48 kHz

AC Power RequirementsPower Consumption 55 watts [2404VLZ4] 65 watts [3204VLZ4]

US, JP 100 – 120 VAC, 50 – 60 Hz

EU, UK, AU, CN 200 – 240 VAC, 50 – 60 Hz

Operating Temperature 0˚ – 40˚C 32˚ – 104˚F

Physical Properties (product)Front Height 1.8 in / 46.3 mm [Both] Rear Height 6.0 in / 153 mm [Both]

Depth 19.1 in / 486 mm [Both]

Width 29.4 in / 748 mm [2404VLZ4] 38.0 in / 964 mm [3204VLZ4]

Weight 31.0 lb / 14.1 kg [2404VLZ4] 39.0 lb / 17.7 kg [3204VLZ4]

Physical Properties (packaged product)Height 10.6 in / 269 mm [Both]

Depth 23.0 in / 584 mm [Both]

Width 33.9 in / 861 mm [2404VLZ4] 42.5 in / 1080 mm [3204VLZ4]

Weight 37.0 lb / 16.8 kg [2404VLZ4] 44.0 lb / 20.0 kg [3204VLZ4]

Options2404VLZ4 Mixer Cover P/N 093-008-00

3204VLZ4 Mixer Cover P/N 093-008-01

Ordering Information2404VLZ4 24-Channel 4•Bus FX Mixer with USB, US P/N 2040769-00

2404VLZ4 24-Channel 4•Bus FX Mixer with USB, EU P/N 2040769-01

2404VLZ4 24-Channel 4•Bus FX Mixer with USB, AU P/N 2040769-04

2404VLZ4 24-Channel 4•Bus FX Mixer with USB, CN P/N 2040769-05

2404VLZ4 24-Channel 4•Bus FX Mixer with USB, BZ P/N 2040769-06

3204VLZ4 32-Channel 4•Bus FX Mixer with USB, US P/N 2040770-00

3204VLZ4 32-Channel 4•Bus FX Mixer with USB, EU P/N 2040770-01

3204VLZ4 32-Channel 4•Bus FX Mixer with USB, AU P/N 2040770-04

3204VLZ4 32-Channel 4•Bus FX Mixer with USB, CN P/N 2040770-05

3204VLZ4 32-Channel 4•Bus FX Mixer with USB, BZ P/N 2040770-06

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VLZ4 4•Bus 24-/32-Channel 4•Bus FX Mixer with USB

THE INFORMATION CONTAINEDHEREIN IS PROPRIETARY ANDCONFIDENTIAL PROPERTY OF

LOUD TECHNOLOGIES, INC.ALL RIGHTS RESERVED

UNLESS OTHERWISE SPECIFIED:ALL DIMENSIONS ARE IN INCHES

DUAL [MM] DIMENSIONS FOR REF ONLY

TOLERANCE IN INCHES

LINEAR ± 0.13 in / ± 3.3 mmANGLES ± 1°

(X.XX) = REF DIMS

NO TOLERANCE IMPLIED

TSC = THEORETICAL SHARP CORNER

DIMENSIONS ACROSS CENTERLINESTO BE SYMMETRICAL

THIRD ANGLE PROJECTION

2404VLZ4 NOTES:1. WEIGHT APPROX. 31.0 lb [14.1 kg]2. SHIPPING WEIGHT APPROX. 37.0 lb [16.8 kg]

3204VLZ4 NOTES:1. WEIGHT APPROX. 39.0 lb [17.7 kg]2. SHIPPING WEIGHT APPROX. 44.0 lb [20.0 kg]

19.1

[486

]

38.0[964]

29.4[748]

6.0[153]

1.8[46]

6.0[153]

1.8[46]

19.1

[486

]

VLZ4 4•Bus DIMENSIONS

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VLZ4 4•Bus 24-/32-Channel 4•Bus FX Mixer with USB

L

R

PFL Solo

M ain

PFL soloAFL solo L

Monitor

Level

Insert

Level

Pan

LR

Sub 1 O

ut(S

ub 2-4 identical)

Phones

Monitor O

utLR

Lsum

R sum

Sub 1 sum

12

Sub

Aux 1 (pre)Aux 1

Assign

TalkbackAssign

Hudson R

iver

Central P

ark

3-BandEQ

w/ Sw

ept Mid

Aux 2 Aux 2 (pre)

FX 1FX 2

FX1FX 2

34

Internal FX 1(Internal FX

2 identical exceptreturns to second stereo

channel)

Sub 1 level

Sub Assign ToM

ain Mix

LR

StereoR

eturn 1 & 2

LR

Main

12

Sub34

L/R

1/2

3/4

L Insert

R Insert

To Main M

ix

Mute

TalkbackLevel

Main O

ut

48V

Mono C

hannels1-16

(2404)1-24

(3204)

Mic

+-

Mic: 0 ~ +60dB

Line: -15 ~ +45dB

Stereo C

hannels21/22 &

23/24 (2404)29/30 &

31/32 (3204)

4-BandEQ

LevelPan

Assign

L/R

1/23/4

Mute

Aux 5

PFL S

olo

RU

DE

SO

LOLED

Meter

Select

To Aux 1

Solo

Solo

LOM

ID

80100~8K

12K

HI

Line

Gain

Aux 1 Level

Preset select

FXPresetD

isplay

Global 48v

Switch/LE

D

To Aux 2

Aux 6

Aux 3

Aux 4

Aux 5

Aux 6

Aux 1

Aux 2

HPF In

bypass

Solo

Logic

Solo

US

BO

ut

FX 1 BypassLogic

In

FX 1

Out L

Out R

MID

Phantom

Pow

er(To All M

ics)

Phantom

Pow

er

R L

LR

Int FX 1 O

ut L

FX 1Line

LOM

IDM

ID

80400

2.5K12K

HI

LOM

IDM

ID

80400

2.5K12K

HI

Int FX 1 O

ut R(FX2 on 2

nd st ch.)

Tap

Solo

USB

In

FX Mute

Active

LR Tape Out

Tape Input LR

2 track InputLevel

Main

level

+-+-

+-+-

Aux 3 (pre/post)Aux 4 (pre/post)

Aux 1

Aux 2

postpre

Aux 3

Aux 4

To Aux 3

To Aux 4L-R

Aux1-4

Aux 3Aux 4

US

BTape

Solo

PhonesLevel

SoloLevel

AFL solo RAFL solo LAFL solo R

Solo (2&4)Solo (1&3)Solo

AFL S

olo

Insert

Insert

Aux1

Aux2

Main

Mono O

utM

ono level

-20dB pad

-20 Sig (flicker)

solo (on)O

L (flicker)m

ute (on)

-20 Sig (flicker)

solo (on)O

L (flicker)m

ute (on)

FX 1 m

aster level

HPF

100Hz

Mono C

hannels17-20

(2404)25-28

(3204)

Mic

+-

Mic: 0 ~ +60dB

Line: -15 ~ +45dBLine

Gain

HPF In

bypassP

hantom P

ower

HPF

100Hz

Com

p

Com

p

LR

AFL

PFL

Solo mode

Mono Insert

Aux 1 sum

Aux 5Aux 6

Aux 5 (post)Aux 6 (post)

to USB 1-2

FX1

FX2

FX2

FX1

US

B

(Second stereo

channel only)

Aux 1 Out

(Aux 2-6 identical)S

ig/OL

LR(To first stereo channel)

postpre

Gain

-20 ~ +20dB

Sub 1

Sub 4

Sub 3

Aux 6

to USB 3-4

Aux 5

Sub 2

Mono

Aux 5-6S

ub 3-4

Main L-R

Sub 1-2

VLZ4 4•Bus BLOCK DIAGRAM

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VLZ4 4•Bus 24-/32-Channel 4•Bus FX Mixer with USB

Part No. SW0996 Rev. A 08/13

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

PAN

L R

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

MID

200 2k

800

100 8k

FREQ FREQ FREQ FREQ FREQ FREQ FREQ FREQ FREQ FREQ FREQ FREQ FREQ FREQ FREQ FREQ

1MUTE

PAN

L R

2MUTE

PAN

L R

3MUTE

PAN

L R

4MUTE

PAN

L R

5MUTE

PAN

L R

6MUTE

PAN

L R

7MUTE

PAN

L R

8MUTE

PAN

L R

9MUTE

PAN

L R

10MUTE

PAN

L R

11MUTE

PAN

L R

12MUTE

PAN

L R

13MUTE

PAN

L R

14MUTE

PAN

L R

15MUTE

PAN

L R

16MUTE

PAD-20dB

1

LOW CUT100 Hz

GAIN

PAD-20dB

2

LOW CUT100 Hz

GAIN

PAD-20dB

3

LOW CUT100 Hz

GAIN

PAD-20dB

4

LOW CUT100 Hz

GAIN

PAD-20dB

5

LOW CUT100 Hz

GAIN

PAD-20dB

6

LOW CUT100 Hz

GAIN

PAD-20dB

7

LOW CUT100 Hz

GAIN

PAD-20dB

8

LOW CUT100 Hz

GAIN

PAD-20dB

9

LOW CUT100 Hz

GAIN

PAD-20dB

10

LOW CUT100 Hz

GAIN

PAD-20dB

11

LOW CUT100 Hz

GAIN

PAD-20dB

12

LOW CUT100 Hz

GAIN

PAD-20dB

13

LOW CUT100 Hz

GAIN

PAD-20dB

14

LOW CUT100 Hz

GAIN

PAD-20dB

15

LOW CUT100 Hz

GAIN

PAD-20dB

16

LOW CUT100 Hz

GAIN

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

1 2

SUBGROUPS

PUSHTO TALK

MAINRIGHT

AUX 1-4

SOLO

STEREO

LEFT

RIGHT

SOLO

LEFT

RIGHT

SOLO

STEREO

LEFT

RIGHT

SOLO

LEFT

1 2 3 4 MAIN MIX

TALKBACK

OFF MAXCOMP

OFF MAXCOMP

OFF MAXCOMP

OFF MAXCOMP LEVEL

PHONES

TO AUX 1

TO AUX 2

SOLO

MONITORTAP

DELAY

MUTE

TO AUX 1

TO AUX 2TAP

DELAY

MUTE

FX MASTERFX MASTER

TO LRTO LR

FX 2

SIG/OL

FX 1

SIG/OL

SOLO

SOLO

1

2

3

4

SOLO

SOLO MODE

SOLO

SOLO

SOLO

SOLO

SOLO PFLAFL

AUX

AUX

AUX

AUX

CH 1-2 CH 3-4

AUX 5-6

PWR

RUDE SOLO

48VUSB OUT

SUBS 3-4

20

10

7

4

2

0

2

4

7

10

20

30

LEVELSET

SUBS 1-2MAINTO LR

TAPEUSB

2-TRACK RETURN

SUCK

SOLO

12V0.5A

OFF MAX

COMP

OFF MAX

COMP

OFF MAX

COMP

OFF MAX

COMP

LOW CUT100 Hz

LOW CUT100 Hz

LOW CUT100 Hz

LOW CUT100 Hz FX 1 FX 2

USB

2122

2324

HI12k

HIMID2.5k

LOWMID

400Hz

HIMID2.5k

-15 +15

U

-15 +15

U

-15 +15

U

-15 +15

U

LOW80Hz

LOWMID

400Hz

LOW80Hz

-15 +15

U

HI12k

2

3

4

5

6

1

+15

U+15

U

+20

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U

+15

U+15

U+15

U

+15

U

+15

U

+15

U+15

U+15

U

+15

U

+15

U

+15

U

-15 +15

U-15 +15

U

-15 +15

U

-20 +20

U

-20 +20

U

AUX MASTER

LR

STEREO RETURNS

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

FREQ

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

FREQ

MID

200 2k

800

100 8k

EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

FREQ

MID

200 2k

800

100 8k

EQ EQ EQ

HI12k

-15 +15

U-15 +15

U

LOW80Hz

-15 +15

U

FREQ

MID

200 2k

800

100 8k

PAN

L R

17MUTE

PAN

L R

18MUTE

PAN

L R

19MUTE

PAN

L R

20MUTE

BAL

L R

21/22MUTE

ALT 3-4

BAL

L R

0 dB=0 dBuLEFT RIGHT

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

1-2

3-4

L R

OL

-20

30

20

10

10

4050

5

5

U

60

dB

OO

SOLO

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

FXAUX 5/6

PRE

PRE

FX1

FX2

PRE

1

2

+15

U

AUX

+15

U

3

4

5

6

+15

U

+15

U

+15

U

+15

U

23/24MUTE

ALT 3-4

30

20

10

10

4050

5

5

U

60

dB

OO

30

20

10

10

4050

5

5

U

60

dB

OO

30

20

10

10

4050

5

5

U

60

dB

OO

30

20

10

10

4050

5

5

U

60

dB

OO

30

20

10

10

4050

5

5

U

60

dB

OO

30

20

10

10

4050

5

5

U

60

dB

OO

17GAIN 18GAIN 19GAIN 20GAIN LINE GAIN LINE GAIN

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

30

-20dB +40dB

U

60U

4020

50%

100%0%

25% 75%

POWERON

PHANTOMON

3 2 1 2 1

2 1

6 5 4

3 2 16 5 4

3 2 14

SUBGROUP OUTSBAL / UNBAL

SUBGROUP INSERTSTIP SEND, RINGRETURN

AUX INSERTS TIP SEND, RING RETURN

AUX SENDS BAL / UNBAL

3 2 14

L

R

MONO

L

R

MONO

STEREO RETURNS BAL / UNBAL

21/22 23/24BAL / UNBALBAL / UNBAL

MONITORMONO

MONITOR

L

R

100 - 240 V 50 - 60 Hz 55W

TALKBACKMIC

RIGHTMAIN OUT

INSERT LINE

LEFTMAIN OUT

INSERT LINE

MONOMAIN OUT

INSERT LINE

LEVEL

OUTPUT L USB

R

L

R

TAPEOUTIN

TIP SENDRING RETURN

TIP SENDRING RETURN

TIP SENDRING RETURN BAL / UNBAL BAL / UNBAL BAL / UNBAL

20

20

20

19

19

19

18

18

18

17

17

17

16

16

16

15

15

15

14

14

14

13

13

13

12

12

12

11

11

11

10

10

10

9

9

9

8

8

8

7

7

7

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)

LINE (BAL / UNBAL)

INSERTS (TIP SEND, RING RETURN)

ONYX MIC PREAMPS

UNBALANCED

REVISIONSERIAL 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 ELECTRICSHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN ORMOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLEPARTS 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

VLZ4 4•Bus FRONT AND REAR PANEL (2404VLZ4 shown)

Electronic files for this product are available at: www.mackie.comSpecification Sheet VLZ4_4BUS_SS.PDF

Owner’s Manual VLZ4_4BUS_OM.PDF

www.mackie.com16220 Wood-Red Road NEWoodinville, WA 98072 USA800-898-3211, Fax 425-487-4337

LOUD Technologies Inc. is always striving to improve our products by incorporating new and improved materials, components, and manufacturing methods. Therefore, we reserve the right to change these specifications at any time without notice.

“Mackie” and the “Running Man” figure are registered trademarks of LOUD Technologies Inc. All other brands mentioned are trademarks or registered trademarks of their respective holders, and are hereby acknowledged.

©2013 LOUD Technologies Inc. All rights reserved.