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Owner’s Manual

Owner’

s Manual

1604VLZ4 Limited Warranty

Please keep your sales receipt in a safe place.

This Limited Product Warranty (“Product Warranty”) is provided by LOUD Technologies Inc. (“LOUD”) 
and is applicable to products purchased in the United States or Canada through a LOUD-authorized 
reseller or dealer. The Product Warranty will not extend to anyone other than the original purchaser of 
the product (hereinafter, “Customer,” “you” or “your”).

For products purchased outside the U.S. or Canada, please visit www.720trees.com to find contact 
information for your local distributor, and information on any warranty coverage provided by the 
distributor in your local market.

LOUD warrants to Customer that the product will be free from defects in materials and workmanship 
under normal use during the Warranty Period. If the product fails to conform to the warranty then LOUD 
or its authorized service 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.720trees.com or by calling LOUD technical support at 1.800.898.3211 (toll-free in 
the U.S. and Canada) during normal business hours Pacific Time, excluding weekends or LOUD holidays. 
Please retain the original dated sales receipt as evidence of the date of purchase. You will need it to obtain 
any warranty service. 

For full terms and conditions, as well as the specific duration of the Warranty for this product, please visit 
www.720trees.com.

The Product Warranty, together with your invoice or receipt, and the terms and conditions located at 
www.720trees.com constitutes the entire agreement, and supersedes any and all prior agreements 
between LOUD and Customer related to the subject matter hereof. No amendment, modification or 
waiver of any of the provisions of this Product Warranty will be valid unless set forth in a written 
instrument signed by the party to be bound thereby.

Summary of Contents for 1604-VLZ PRO

Page 1: ...1604VLZ4 OWNER S MANUAL 16 Channel 4 Bus Compact Mixer...

Page 2: ...ctions importantes pour le fonctionnement et l entretien service dans le livret d instruction accompagnant l appareil 20 NOTE This equipment has been tested and found to comply with the limits for a C...

Page 3: ...X A SERVICE INFORMATION 26 APPENDIX B CONNECTIONS 26 APPENDIX C TECHNICAL INFORMATION 30 DIMENSIONS 31 TRACK SHEET 32 BLOCK DIAGRAM 34 1604VLZ4 LIMITED WARRANTY 35 IMPORTANT SAFETY INSTRUCTIONS 2 CONT...

Page 4: ...m low noise design that made the 1604 an industry mainstay All 16 channels feature an Onyx mic pre line input and insert in a compact 4 bus design built for application flexibility and professional pe...

Page 5: ...ttached or to the line level inputs of powered speakers Setthelevels It s not even necessary to hear what you re doing to set optimal levels But if you d like to Plug headphones into the phones output...

Page 6: ...A stereo compressor and stereo graphic EQ are connected to the L R main inserts Digital reverb and delay processors are connected to aux sends 1 and 3 with the aux sends set to post level Effects are...

Page 7: ...ected to the line input of channel 15 while a synth is connected to the line input of channel 16 A stereo compressor and stereo graphic EQ are connected to the L R main inserts The 1 4 L R main outs c...

Page 8: ...rews remove screws flush mount rotate pod replace screws use the longer screws that come in a little bag sunken position use the longer screws that come in a little bag 7 Carefully install the pod mou...

Page 9: ...ts are excellent at rejecting hum and noise The XLR inputs are wired as follows Pin 1 Shield or ground Pin 2 Positive or hot Pin 3 Negative or cold Professional ribbon dynamic and condenser mics all s...

Page 10: ...sor RETURN from processor TRS plug 2 Line Ins These 1 4 jacks share circuitry but not phantom power with the mic preamps and can be driven by balanced or unbalanced sources at almost any level You can...

Page 11: ...the L R mix and not the source channels 1 8 The main advantage is that you won t be forced to constantly repatch your multitrack just set it up and forget it You ll also know for certain that the sign...

Page 12: ...how signals are routed from these inputs see tape in level 40 on page 20 10 7 Stereo Returns This is where to connect the outputs of parallel effects devices or extra audio sources They ll accept just...

Page 13: ...will demand a monaural output from your painstakingly created stereo panorama The last thing you want to do is start twirling all your carefully placed pan settings to one side What to do Stick a cor...

Page 14: ...h a small flat screwdriver and replace the fuse with a 1A SLO BLO 5x20mm available at electronics stores or your dealer or a 500 mA SLO BLO 5x20 mm if your 1604VLZ4 is set to 220V 240V If two fuses bl...

Page 15: ...or pity s sake never put the mixer in your kitchen We also recommend exercising the faders give them a few full travel excursions once a week or so and that will help scare the crud away Do not use sp...

Page 16: ...out flickering It will also be brighter than it would be as a 20 indicator In conjunction with the rude solo light 47 you can find a rogue solo switch quickly 29 28 27 30 31 32 29 OL Mute LED Another...

Page 17: ...ifferently trying a different kind of mic changing the strings or gargling 20Hz 100Hz 1kHz 10kHz 20kHz 15 10 5 0 5 10 15 20Hz 100Hz 1kHz 10kHz 20kHz 15 10 5 0 5 10 15 20Hz 100Hz 1kHz 10kHz 20kHz 15 10...

Page 18: ...10kHz 20kHz 15 10 5 0 5 10 15 33 36 34 35 We recommend going into a stereo reverb in mono and returning in stereo We have found that on most stereo reverbs the second input just ties up an extra aux s...

Page 19: ...8 All channels that are assigned to subgroups with the assign 26 switches not muted and not turned fully down will appear at the sub outs Unlike the main out 14 the subgroup signals do not pass throug...

Page 20: ...f the engineer needs to hear something other than the main mix With the 1604VLZ4 the engineer has several choices of what to listen to This is one of those tricky parts have a double espresso first Us...

Page 21: ...nt but will give you signal even if the fader is turned down Remember PFL taps the channel signal before the fader If you have a channel s fader set way below U unity gain solo won t know that and wil...

Page 22: ...already be an expert at the world of 4 4 dBu 1 23 V and 10 10 dBV 0 32 V operating levels Basically what makes a mixer one or the other is the relative 0 dB VU or 0 VU chosen for the meter display A...

Page 23: ...sticks his thumb in the air It would follow suit that if the singer stuck his thumb down you d turn the knob down but that never happens 50 Aux Sends Solo Once again in live sound situations aux send...

Page 24: ...subgroup faders 1 and 2 this switch up or subgroup faders 3 and 4 this switch down Let s say you ve made a stereo drum submix on subgroup faders 1 and 2 so you can ride those two faders instead of th...

Page 25: ...D This switch operates just like the channel solo 27 switches engaging it sends signals to the control room headphones and meter display and interrupts whatever happened to be there before you soloed...

Page 26: ...eft it s not the mixer Unplug everthing from the main inserts Noise Turn the channel faders and stereo return knobs down one by one If the sound disappears it s either that channel or whatever is plug...

Page 27: ...left cord and a right cord which are plugged into the two mic preamps You can cook up your own adapter for a stereo microphone Y two cables out of a female 1 4 TRS jack to two male XLR plugs one for...

Page 28: ...cases you will have to make up special adapters to interconnect your equipment For example you may need a balanced XLR female connected to an unbalanced 1 4 TS phone plug TIP SLEEVE TIP SLEEVE Unbala...

Page 29: ...ack labeled left mono The signal will be routed to both the left and right sides of the return circuit and will show up in the center of the stereo pair of buses it s assigned to or it can be panned w...

Page 30: ...dBu Main Mix TRS out 28 dBu All other outputs 22 dBu Impedances Mic in 2 5 k Channel Insert return 2 5 k All other inputs 10 k or greater Tape out 1 1 k All other outputs 120 EQ High Shelving 15 dB 12...

Page 31: ...in 222 mm 5 7 in 144 mm 6 3 in 160 mm with rack ears fitted in upper position 9 4 in 238 mm with rack ears fitted in upper position 19 0 in 483 mm with rack ears fitted 17 5 in 445 mm 17 0 in 433 mm...

Page 32: ...32 1604VLZ4 1604VLZ4 Track Sheet Session Notes Date...

Page 33: ...33 Owner s Manual Owner s Manual...

Page 34: ...R PHNS ONLY MAIN SUBS 1 2 3 4 TO AUX 1 TO AUX 2 SOLO TO SOLO LED SIP L SIP R PFL SOLO CR PHN L CR PHN R SOLO RELAY ASSIGN TO MIX MAIN MIX INSERT FADER R MAIN MIX MONO OUT MAIN MIX LEFT OUT TAPE OUT LE...

Page 35: ...ed service 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...

Page 36: ...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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