Important Safety Instructions 1. Read these instructions. 20. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 2. Keep these instructions. of the FCC Rules. These limits are designed to provide reasonable 3.
Features Introduction • 16-channel mixer featuring our signature A legend in compact mixer design, the 1604VLZ4 high-headroom, low-noise design now combines the proven performance of Onyx preamps with the no-compromise high-headroom/low-noise • 16 boutique-quality Onyx mic preamps design that made the 1604 an industry mainstay. •...
Getting Started Set the levels It’s not even necessary to hear what you’re doing to We realize that you must be really keen to try out set optimal levels. But if you’d like to: Plug headphones the mixer. Please read the safety instructions on page into the phones output jack, then turn up the 2, then have a look through some of the features and CR/phones knob just a little.
Hookup Diagrams Synth Vocal Vocal mics Drum microphones mics Headphones Stereo Guitar Effects Headphone amp Stereo Guitar Effects (Connected to the phones jack on the front of the mixer) Stereo Compressor Stereo Compressor Stereo Compressor and Stereo EQ Multi-track Digital Recorder Stereo Tape Deck Digital Reverb MR8mk3...
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Synth Vocal Vocal Drum microphones mics mics Headphones (Connected to the phones jack on the front of the mixer) Stereo Guitar Effects Stereo Compressor Stereo Guitar Effects DLM8 loudspeakers Stereo Compressor DLM8 Stage Monitors Digital Reverb Digital Delay Laptop Stereo Compresor Stereo EQ and Stereo EQ DLM12S subwoofers...
Converting To Rackmount Mode Not only is the 1604VLZ4 a compact, professional- 7. Carefully install the pod-mounting screws in quality tabletop mixer...it’s rack-mountable! their new locations [d]. The unique rotating input pod makes this possible. 8. Install the rack ears that came with the mixer, using the supplied packet of screws.
Patchbay Description At the risk of stating the obvious, this is where you The XLR inputs are wired as follows: plug everything in: microphones, line-level instruments Pin 1 = Shield or ground and effects, headphones, and the ultimate destination Pin 2 = Positive (+ or hot) for your sound: PA system, DAW, etc.
2. Line Ins 4. Insert These 1/4" jacks share circuitry (but not phantom These unbalanced 1/4" jacks are for connecting serial power) with the mic preamps, and can be driven by effects processors such as compressors, equalizers, balanced or unbalanced sources at almost any level. de-essers, or filters.
The point is that you never listen directly to the source channels (1–8). You listen to the monitor chan- nels (9–16) and they’re listening to the multitrack that is listening to the source channels. (Make sure to assign multitrack the monitor channels 9-16 to the L/R mix, and not the machine source channels 1-8.) The main advantage is that you won’t be forced to constantly repatch your multitrack —...
7. Stereo Returns 9. C-R Outs (Control Room Outputs) This is where to connect the outputs of parallel These 1/4" jacks are usually patched to the inputs of effects devices (or extra audio sources). They’ll accept a control room amplifier or a headphone distribution just about any pro or semipro effects device on the amplifier.
16. Mono Level Use these jacks for convenient playback of mixes. You’ll be able to review a mix, and then rewind and try So, Mr. Mono comes running back, screaming about another pass without repatching or disturbing the mixer the mono mix being so loud that his camcorder is levels.
20 22 19. Fuse The 1604VLZ4 is fused for your (and its own) protection. If you suspect a blown fuse, disconnect the power cord, pop out the fuse drawer with 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).
Channel Strip Description 26. Assign (1–2, 3–4, L–R) The 16 channel strips look alike and function identically. So if you learn one, Alongside each channel fader are four buttons, you have learned them all. The only labeled solo, 1–2, 3–4 and L–R. The latter three are difference is that the eight on the left collectively referred to as channel assignment switches.
27. Solo 29. OL (Mute) LED This lovable switch allows you to check signals in Another LED that does two completely different the phones or control room without having to assign things! First, the “OL” part: “OL” means overload, or them to the L-R, 1-2 or 3-4 mixes.
31. Pan The low EQ provides up to 15 dB boost or cut below 80 Hz. This adjusts the amount of channel signal sent to The circuit is flat (no boost or the left versus the right outputs. Pan determines the cut) at the center detent posi- –5 fate of the L-R assignment, subgroups 1–2 and 3–4,...
33. Low Cut We recommend going into a stereo reverb in mono and returning in stereo. We have found This switch, often referred to as a high pass filter (all that on most “stereo” reverbs, the second depends on how you look at it), cuts bass frequencies input just ties up an extra aux send and adds nothing below 75 Hz at a rate of 18 dB per octave.
Output Section Description 37. Main Mix Fader You’ve just learned about the input channels and how the signals get in and out. The signals come in via mic This fader controls the levels of signals sent to the [1] and line [2] input jacks, are manipulated by the main out [14] jacks and tape output [11] RCA jacks.
41. Tape To LR mix, engage both the assign to main mix, left and right switches. The signal will be sent to both sides, and Engaging this switch is just like engaging the L-R will be attenuated just enough to preserve constant switch on a channel —...
45. Level Set LED Engaging a solo switch will cause this dramatic turn of events: Any existing source matrix selections will be When the mode switch [44] is engaged, it’s in PFL replaced by the solo signals, appearing in the control mode, the mode you must be in to set levels.
48. Meters Meters vs. Reality The 1604VLZ4’s peak metering system is made up of You may already be an expert at the world of “+4” (+4 two columns of twelve LEDs. Deceptively simple, dBu=1.23 V) and “–10” (–10 dBV=0.32 V) operating considering the multitude of signals that can be levels.
These knobs go from off (turned fully down), to unity gain at the center detent, with 10 dB of extra gain (turned fully up). As with some other level controls, you may never need the additional gain, but if you ever do, you’ll be glad you bought a 1604VLZ4.
53. Main Mix To Subs (Stereo Return 3) With this switch up, stereo return 3 behaves like all the others — it delivers a stereo signal, regulated by its level knob, to the main mix. When you engage this switch, the signals are removed from the main mix buses and sent to the 1-2/3-4 switch, which diverts the signal once more.
55. CR/PH Only (Stereo Return 4) Once again, the default for all the stereo returns is to feed them directly into the main mix. You’ve just learned about the optional exceptions involving stereo return 3. Stereo return 4 also has an optional exception: By engaging this switch, you will remove stereo return 4’s stereo signal from the main mix and send it directly to the CR/phones source [42] matrix.
Appendix A: Service Information Warranty Service Repair If you think your 1604VLZ4 has a problem, please For warranty service, refer to the warranty check out the following troubleshooting tips and do information on page 35. your best to confirm the problem. Visit the Support Non-warranty service is available at a factory- section of our website (www.720trees.com) where authorized service center.
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Balanced XLR Output Connector accept 1-plug-type stereo microphones. They must be separated into a left cord and a right cord, which are plugged into the two mic The male XLR connectors provide a balanced line- preamps. level signal that represents the end of the mixer, where the fully mixed stereo signal enters the real world.
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Unbalanced RCA Connector TRS Send/Receive Insert Jacks RCA-type plugs (also known as phono plugs) Single-jack inserts are three-conductor, TRS-type 1⁄4" and jacks are often used in home stereo and video phone. They are unbalanced, but have both the mixer equipment and in many other applications. RCA plugs output (send) and the mixer input (return) signals in are unbalanced.
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VLZ4 Stereo Inputs and Returns: NOTE: Do not overload or short-circuit the signal you are tapping from the mixer. That will affect the internal Mono, Stereo, Whatever signal. Stereo line inputs and stereo returns are a fine example of our philosophy (which we just made up) MONO PLUG of Maximum Flexibility with Minimum Headache.
Appendix C: Technical Information Specifications Impedances Main Mix Noise Mic in: 2.5 k (20 Hz–20 kHz bandwidth, 1/4" Main out, channel gains @ unity gain, channel EQs flat, all channels assigned to Main Mix, Channel Insert return: 2.5 k odd channels panned left, even channels panned right.) All other inputs: 10 k or greater Main Mix fader unity, channel faders down:...
Dimensions 19.0 in / 483 mm [with rack ears fitted] 5.6 in / 141 mm [with rack ears fitted 5.1 in / 129 mm in upper position] 17.3 in / 440 mm WEIGHT 20 lb 9.1 kg Pod in normal position 9.4 in / 238 mm [with rack ears fitted in upper position] 8.7 in / 222 mm...
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.
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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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