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Onyx 1640i, Onyx-i Series Mixers

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Mackie Onyx 1640i

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Model: Onyx 1640i
16-Ch./4-Bus Firewire Recording Mixer

The 16-channel 1640i is the flagship mixer of the series featuring a full 16 mono mic/line channels each with 4-band dual sweep Perkins EQ, a whopping six aux sends each with pre/post and solo capability, 4 sub groups and a powerful master section. Despite its large channel count, the 1640i is compact, rack mountable and features our renowned flexible RotoPod™ design, allowing the mixer to be housed in any configuration – from custom studio furniture, live sound installs or even post production machine rooms. The 1640i’s full-featured 16x16 FireWire capability allows the user to route all channels, aux sends, sub groups and master L/R to their favorite DAW. However, the true power of the 1640i lies in its ability bring back the full 16 channels of FireWire output from your computer directly into the channel strips – for a true tape style mix down. Plus, FireWire aggregation allows for connection of multiple 1640i‘s, providing the capability to record or mix down even the largest of sessions.


Mackie-designed gear is more often than not, the result of customer interaction and suggestion. After all, we are making gear for you. For years, our customers have been asking for the freedom to work with any DAW they choose. So when we designed the Onyx-i series, we took this suggestion to heart. We are very proud that Onyx-i mixers are more DAW-friendly than any other interface ever. Onyx-i mixers are qualified by Mackie for use with all major DAWs, including Pro Tools® M-Powered™ 8*, Logic©, SONAR™, Cubase© and more. Now, dedicated Mackie customers can enjoy using their Mackie mixer with the world’s most popular DAW. And Pro Tools® M-Powered™ 8 users now have a variety of new, and different, tools to use with their favorite DAW. It’s a win-win situation.

The Onyx 1640i is the flagship mixer of the series, boasting a full 16x16 FireWire interface, allowing for something that a DAW could never do alone: A true tape-style mixdown.

If you are doing a real analog mixdown, you will surely benefit from the premium features that the 1640i provides. Send all channels simultaneously to your DAW, get them recorded and apply your plug-ins. Once you have everything edited and ready, you can simply route up to 16 streams straight back into the 1640i’s channel strips. You can choose to apply some of that lovely Perkins EQ if you wish. All of these signals hit our premium, high-headroom custom summing bus. It combines the best of both the digital and analog realm to create seamless workflow that makes your sessions faster, easier and better sounding than ever possible before.

Wet or Dry? — Every channel on the mixer can be routed pre or post EQ to the computer, allowing you to choose whether to implement ‘EQ to tape’ or not.
Studio Quality Effects —All aux sends are routable to the computer, allowing you to utilize your computer as a powerful FX engine by implementing your favorite plug-ins in a live scenario.
Preserve Your Mix — Master L/R is routable to the computer for recording your analog mix. Burn and sell CDs of the mix at the end of the gig!
Mix Integration — Stereo return from the computer can be routed to either the control room for instant monitoring or to a stereo channel for mix integration.
Latency-Free Overdubs — Having a “real” mixer has its benefits. Latency-free overdubs are simple since you are using an analog mixer. No more wasted time dealing with the complicated “DSP” mixers commonly used on standalone interfaces.?

Most DAWs also support device aggregation, allowing you to use multiple 1640i’s in any given session. Imagine 32 or 48 channels, streaming effortlessly to and from your DAW, with all the power right in your hands. It’s the ideal combination of modern technology and classic mixing style.

When it comes to the high pressure environment of a recording session or live performance, you simply cannot beat the stability and reliability of an analog mixer. With features honed over 20 years of design by some of the legends in the industry, the Onyx-i Series mixers are simply the best sounding full-featured analog mixing boards available to the modern sound engineer.
The 1640i has a plethora of analog features that are sure to please. Sixteen full-featured channels each feature Onyx mic preamps, with a reputation as some of the best boutique quality preamps available today. Every channel features 48V phantom power, a low-cut switch and dedicated 4-band, dual-sweep Perkins EQ, offering a highly musical Q filter without sacrificing the precise control the Mackie EQs are known for. Six aux sends provide pre/post control over additional dedicated mixes, including monitor mixes and effects loops. The 1640i features true 4-bus architecture, offering four subgroups that are perfect for managing your mix or for zone control of multiple PA setups. There are built-in DIs on the first two channels for direct connection of guitars or bass and a dedicated talkback section with a built-in mic that lets you easily communicate with band members while on stage or recording. With all these proven, great-sounding analog features, it is easier than ever to create a memorable mix.

The Onyx 1640i is an ideal mixer for live sound, with plenty of inputs to get the whole band hooked up and tons of premium analog features like flexible EQ, aux sends and subgroups to properly mix the show. Then there’s the built-in 16x16 FireWire interface, allowing you to create easy multi-track recordings for later mixdown…completely independent of the house mix. But, when integrated with Waves’ MultiRack plug-in platform (available separately), the 1640i becomes a live sound superbeast, with talons of awesomeness and teeth of solid power. Ok, maybe that’s a stretch, but it will change the way you think about live sound. You can read more about MultiRack on their site, but here’s the down and dirty:

Your favorite plug-ins:
Use your favorite Waves plug-ins in a live environment in a convenient user interface that offers the look and functionality of a full rack of outboard gear
Ultra-low latency: Tested in real world applications with latency equal to standalone digital consoles
Clear the clutter: Just your Onyx 1640i, a FireWire cable and a laptop running MultiRack
Snapshot Recall: From individual plug-in settings to full recall of racks and sessions, without turning a thousand knobs

The Onyx 1640i is uniquely capable of unleashing the full potential of this software, with powerful processing available on each and every channel, not to mention auxes, groups and the master L/R. You can forget about cheap digital mixers with inferior effects. Premium analog mixer. Premium processing capability. Unparalleled DAW support, including groundbreaking support for Pro Tools® M-Powered™ 8. All of this is available now with the Onyx 1640i and Waves MultiRack software.


The Onyx 1640i offers a tremendous collection of professional analog features and extremely deep DAW integration, but it is so much more than that. The sleek, modern design might even tempt you build a museum quality display for your engineer friends to admire. Plus, since it’s a Mackie, you can be sure that it is “Built-Like-A-Tank” and will survive years of abuse.

Any audio company can cram a bunch of inferior components into a chassis and, believe us, a lot of them do. This is never the case with a Mackie mixer. Everything about the Onyx-i Series smacks of quality, because only the most quality, high-end components are used throughout the entire signal path. At the front end, you have the pristine signal boost offered by the Onyx mic preamps, which will likely get routed through the legendary Perkins EQ. The signal then passes through a series of sealed rotary knobs, which keep dust and grime out of the potentiometer. Then your mix hits the summing bus, which has been custom-designed to offer the highest possible headroom while preserving the sonic quality offered by the aforementioned components. Maybe you assigned the signal to stream across the FireWire outputs. If so, your signal will glide effortlessly out of (and back through if your returning streams) the ridiculously high-end Cirrus converters. These converters are the best Mackie has ever specified, and can be found in some of the most esoteric (and expensive) interfaces out there today. From start to finish, no matter how you use it, the 1640i offers the quality demanded by industry professionals.

  • 16-channel premium analog mixer with integrated 24-bit/96kHz FireWire I/O

  • Qualified by Mackie for use with all major DAWs, including:
    » Pro Tools® 9
    » Pro Tools® M-Powered™ 8*
    » Logic®
    » SONAR™
    » Cubase®
    » Ableton® Live
    » Final Cut Pro®

  • 16 Onyx boutique-quality mic preamps

  • 4-band Perkins EQ with sweepable mids on mic/line channels

  • Full 16x16 FireWire channel streaming for ultimate DAW integration

  • Flexible FireWire routing, including aux sends, groups and pre/post EQ assignment for all channels

  • 6 aux sends with pre/post assignment and solo

  • Smooth 60mm channel and master faders

  • Built-in DI on first two channels for direct connection of guitars, bass, etc.

  • Individual 48V phantom power switches on all mic inputs

  • 4-segment metering on every channel

  • 4-bus architecture for flexible sub-grouping of channels

  • Talkback section with built in mic and flexible routing

  • Rotating I/O pod for desktop or rackmount operation – rack ears included

  • “Planet Earth” switching power supply for worldwide use

  • Includes Tracktion 3™ Music Production Software for Mac or PC

*Requires driver upgrade download

General Specifications
Frequency Response: Mic Input to main output (all gain stages at unity, +0/ -1 dB)
<10 Hz to 80 Hz / <10 Hz to >100 kHz
Channel line input to any output (all gain stages at unity, +0/ -1 dB)
20 Hz to 20 kHz
Firewire in and out(mic input to FireWire send,returned to Control Room,all gain stages at unity):
44.1kHz Sample rate (+0/-0.5dB): 20Hz to 20kHz, -3dB at 21kHz
96 kHz Sample rate(+0/-0.5dB): 20Hz to 20kHz, -3dB at 45kHz
Distortion (THD+N): (20 Hz to 20kHz bandwidth)
Mic input at insert(+4 dBu in, 0 dB gain, +4 dBu Out): 0.005%
Mic input at insert(-10 dBu in, +20 dB gain, 20 Hz to 20 kHz bandwidth): 0.007%
Stereo channel line input to any output(+4 dBu in, all gain stages at unity, +4 dBu out): 0.005%
FireWire in and out (+4 dBu in, mic input to FireWire send, returned to Control Room, all gain stages at unity):
44.1 kHz Sample Rate: 0.02%, 10 Hz to 2 kHz
96 kHz Sample Rate: 0.02%, 10Hz to 10 kHz
                                  0.05%, 10 kHz to 47 kHz
Noise Characteristics: Equivalent Input Noise (EIN), mic input at insert 150Ω source impedance, 20 Hz to 20 kHz
60 dB (max) gain: -129 dBu
40 dB gain: -128dBu

Output Noise (1/4" Main out, all channels assigned to main, Gain knobs at unity, 20 Hz to 20 kHz)
Main Mix Knob down, channel Level knobs down: -100 dBu(-104 dB SNR, ref +4 dBu)
Main Mix Knob unity, channel Level knobs down: -93 dBu(-97 dB SNR, ref +4 dBu)
Main Mix Knob unity, channel Level knobs unity: -91 dBu(-95 dB SNR, ref +4 dBu)

FireWire Through(Record + Playback) Dynamic Range(0 dBu in, mic input to FireWire send, returned to Control Room, all gain stages at unity, 20Hz to 20kHz)
All Sample Rate: -105 dB
Attenuation and Crosstalk (@1 kHz): Main Mix knob down: -80dBu
Channel Alt/Mute switch engaged: -96dBu
Channel Level knob down: -96dBu
Common Mode Rejection Ratio (CMRR): Mic Input to insert, max gain, 1kHz: <70 dB
Maximum Input Levels: Mic Input, gain at min(0 dB): +21 dBu
Mic Input, gain at max(60 dB): -38dBu
Line Input, gain at -20dB: +30 dBu
Instrument input, gain at -20dB: +21 dBu
Tape Input: +21 dBu
Aux Return: +21 dBu
Maximum Output Levels: All Outputs: +21dBu
Equalization: All Channels:
Low: ± 15 dB @ 80Hz
Lo-Mid Frequency: 100 Hz to 2 kHz
Lo-Mid gain:  ± 15 dB
Hi-Mid Frequency: 400 Hz to 8 kHz
Hi-Mid gain:  ± 15 dB
High: ± 15 dB @ 12 kHz
FireWire: Sample Rates Available: 44.1kHz, 48kHz, 88.2kHz, 96 kHz
Buffer Size: 32 (44.1kHz and 48kHz only), 64, 128, 256, 512, 1024, 2048 samples
Resolution: 24-bit
Meters: 2-segment Pre-fader channel meters: OL(+18 dBu), +10, 0, -20dBu
12-segment Pre-fader Control Room meters: OL(+20 dBu), +15, +10, +6, +3, 0, -2,
                                                                         -4, -7, -10, -20, -30, (0 dB = dBu)
Input Impedance: Mic Input: 2.7 kΩ balanced
Hi-Z Input: 1 MΩ unbalanced
Mono channel line input: 30 kΩ balanced, 15 kΩ unbalanced
Stereo aux returns: 20 kΩ balanced, 10 kΩ unbalanced
Tape in: 20 kΩ unbalanced
Output Impedance: Main XLR output: 150Ω balanced
Phones Output: 25Ω unbalanced
Channel Inserts: 150Ω unbalanced
Tape Output 2 kΩ unbalanced

All other outputs: 300Ω balanced
AC Power Requirements: Power Consumption: 80 watts
Universal AC Power Supply: 100 - 240 VAC, 50-60 Hz
Operating Temperature: 0° - 40°C, 32° - 104°F
Physical Dimensions and Weight: Height: 7.6 in / 193 mm
Width: 17.5 in / 445 mm
Depth: 26.2 in / 667 mm
Weight: 35.0 lb / 15.9 kg




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