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5

Owner’s Manual

Introduction

Awesomely unheard of features

USB Recording and Playback

The VLZ4 4•Bus Series Mixers feature a 4x2 USB 

recording and playback function. This means up to four 
signals may be recorded simultaneously and a stereo 
mix returned to the mixer for playback. 

There are two switches in the master section labeled 

“USB OUT”

 that allow for monstrous flexibility on the 

four recordable signals. The default switch  

 

configuration routes subgroups 1-4 over the USB    
connection to your favorite DAW software for a 

mix it 

later”

 4-track recording. The Subgroup 1-2 switch also 

allows the L-R mix to be recorded for convenient stereo 
mixes of the show. The Subgroup 3-4 switch allows aux 
5/6 to be sent to the DAW for a unique stereo recording 
or the use of DAW plug-ins as effects.

For playback, there are two switches in the master 

section labeled “

2-TRACK RETURN

. One switch [TAPE/

USB] changes the standard dual RCA inputs to main 
(tape, switch disengaged) to stereo USB to main (USB, 
switch engaged). This is an extremely convenient 

 

function for playing music over the main mix from a 
computer. 

Another cool feature of the VLZ4 4•Bus is routing 

the stereo USB return to the last stereo channel of the 
mixer. This is a mighty fine tool for a number of live and 
recording uses. For example, playback through the   

stereo channel allows the “

Greg M designed

” 4-band 

EQ to be utilized to sweeten the sounds. It may also be 
used for overdubbing by sending music to the musicians' 
headphones through the auxes.

Last, but not least, it may be used to return plug-in 

effects from the DAW in a live mix scenario. One of our 
favorites is the CamelPhat VST that makes your    
average drummer sound like Bonham on 

How The West 

Was Won

.

Need help with your mixer?

•  Visit www.720trees.com and click Support to find: FAQs, manuals and other useful information. 

•  Email us at: techmail@loudtechinc.com.

•  Telephone 1-800-898-3211 to speak with one of our splendid technical support chaps  

(Monday through Friday, normal business hours, Pacific Time).

Powerful on-board dual FX engines and eight 

individual compressors

 In 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.

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!

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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