Mackie Onyx 24.4 Premium 24-Channel Analog Live Sound Mixing Console  

Product #634279

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Mackie

Raising the bar for live sound consoles.

The Mackie Onyx 24.4 live sound mixing console upgrades the performance and functionality of the legendary Mackie SR24•4 while retaining its convenient 24-channel footprint.

The greatly enhanced 24-channel Mackie Onyx analog mixer includes 100mm Panasonic faders, all new mic preamps, completely redesigned analog circuitry, Perkins EQ, and a built in assignable stereo compressor/limiter section - all at a price that won't break the bank.

The Mackie Onyx 24.4's all-new mixer design for superior sound
In developing the Mackie Onyx 24.4 mixing console, the design team of analog engineers used the highest-quality components available - from premium op-amps to IC chips costing exponentially more than those used in previous designs. All new summing bus circuitry was designed from the ground up to maximize headroom, and the entire signal chain was electronically balanced from input to output, offering big, full-range sound and
lower noise than any mixer in its class. Most significantly, the analog mixing console features premium Onyx mic preamps, Perkins EQ circuitry, and THAT Corporation 4301 assignable stereo compressor/limiter chip, all custom tailored specifically for the Onyx 32.4 audio mixer.

Boutique quality preamps
Although Mackie's previous generation XDR mic preamps set new standards for both quality and performance, the next generation Onyx mic preamps offer even greater fidelity, headroom and transparency - as well as better radio frequency (RFI) rejection and wider dynamic range than ever before. With specs like 123dB total dynamic range, -129.5 dBm equivalent input noise, and 0.0007% total harmonic distortion, Onyx preamps can easily hold their own against boutique standalone preamps.

Perkins EQ: "British" sound with greater filter control
Mackie enlisted veteran audio engineer Cal Perkins to develop the EQ circuitry for the Mackie Onyx 24.4. Perkins EQ circuitry takes the classic Wein Bridge circuit topology used in British mixing desks of the '60s and '70s and gives it greater filter and phase shift control. The end result is a very effective and extremely musical 4-band EQ with sweepable low- and high-mids - perfect for the throes of live sound mixing.

Assignable onboard stereo compressor/limiter section
Sound engineers have long used master compressor/limiters to smooth out live sound mixes, maximizing the performance of any sound system. Mackie integrated a high quality master compressor/limiter chip from THAT Corporation into this 24-channel mixer. This assignable analog stereo compressor/limiter chip was designed and manufactured in the U.S. by veteran analog engineers, offering true RMS detection and
auto make-up gain for extremely accurate and musical results. The Mackie Onyx 24.4 mixer features independent Threshold, Ratio and Fast/Slow Attack controls, and can be assigned post fader to the L/R main mix (for system limiting and protection) or pre-fader to Group 1/2 or 3/4 outputs (for
grouped signal compression, like drums or background vocals). This reduces the hassle and expense of separate outboard processing.

Master section
If total control over signal routing, talk back/monitor mixing, and external effects processing is what you seek, then look no further - the Onyx 4-Bus Series Master section has everything you've come to expect from a Mackie mixing console, and more. The onboard 6 x 2 Matrix Mixer is the solution to the "not-enough monitor send" blues. Not only can you use the Aux Sends to generate up to six monitor mixes, but the Matrix Mixer can be used to generate two additional independent mixes-ideal for IEM (in-ear monitor) systems, cry rooms, green rooms or other zoned outputs. Visual monitoring of Solo, Main output and compression/limiting is expertly handled via four, giant 12-segment LED ladders. Even the Sub Groups feature 4-segment LED's, so you know what signal levels are at glance.

FEATURES
24-channel/4-bus premium analog mixer designed for live sound
Onyx microphone preamps with class-leading fidelity and dynamic range on every channel
4-band Perkins EQ on every channel for warm, musical sound
6 x 2 Matrix Mixer provides two additional mixes for monitors, etc.
Assignable stereo compressor/limiter designed by THAT
Giant 12 segment LED ladders for main output and compressor/limiter
6 aux sends with pre/post switching
2 dedicated stereo channels
Two dedicated stereo channels
100mm Panasonic faders on all channels, groups, and mains
Same physical size as the popular SR24¢4 mixing console
 

Onyx 24.4 Premium 24-Channel Analog Live Sound Mixing Console Specifications:

Frequency Response
Mic Input to Main Output (Gain @ Unity)
+0, -1 dB, <10 Hz to 80 kHz
+0, -3 dB, <10 Hz to 120 kHz
Distortion (THD & IMD)
Mic Input to Main Output (@ +4 dBu)
THD: <0.007% 20 Hz to 20 kHz, 0.003% @ 1kHz typical
SMPTE IMD: <0.005% (7 kHz/60 Hz, 4:1)
Dynamic Range
>115 dB, Mic In to Main Out
Noise Floor
Signal-to-Noise Ratio:
-89 dBu, (ref. +4 dBu, Mic In to Main Out, 24 channels and Main Mix levels at unity)
Equivalent Input Noise (E.I.N.), 20Hz to 20 kHz Bandwidth, 150Î source impedance: -129.5 dBu @ +60 dB gain
Mic Output Noise:
Direct Output: -100 dBu (minimum gain)
Residual Output Noise:
Main Out: -100 dBu (Channel and Main Mix levels off)
Main Out:
24¢4: -85 dBu (24 channels and Main Mix levels at unity)
Common Mode Rejection Ratio (CMRR)
Mic In: >70dB @ 1 kHz, Gain @ maximum
Crosstalk
Adjacent Inputs: < -95dB @ 1 kHz
Input to Output: < -85dB @ 1 kHz
Input Gain Control Range
Mic In: 0dB to +60dB
Line In: -20dB to + 40dB, mono channels
Phantom Power
+48 VDC
Equalization
Mono Channel EQ:
High: ±15 dB @ 12 kHz
High Mid: ±15dB, sweepable from 400 Hz to 8 kHz
Low Mid: ±15dB, sweepable from 100 Hz to 2 kHz
Low: ±15dB @ 80 Hz
Stereo Channel (Aux Input) EQ:
High: ±15dB @ 12 kHz
High Mid: ±15dB @ 2.5 kHz
Low Mid: ±15dB @ 400 Hz
Low: ±15dB @ 80 Hz
Mixer Rated Output
Main Outs: +4dBu
Aux Send: +4dBu
Group Send: +4dBu
Monitor Out: +4dBu
Matrix Out: +4dBu
Maximum Rated Output: +21 dBu @ Main XLR and TRS outputs
Maximum Input Levels
Mic Input: +21 dBu, Gain @ unity, pad out
Mic Input: +30 dBu, Gain @ unity, pad in
Line Input: +21 dBu, Gain @ -20 dB
Tape Input: +30 dBu
Stereo Return: +21 dBu
Maximum Voltage Gain
Mic Input to:
Main Out: 90dB
Group Out: 80dB
Aux Sends: 86dB
Monitor Out: 103dB
Matrix Out: 105dB
Phones Out: 103dB
Line Input to:
Main Out: 70dB
Group Out: 60dB
Aux Sends: 66dB
Monitor Out: 83dB
Matrix Out: 85dB
Phones Out: 83dB
Stereo Return to:
Main Out: 53dB
Group Out: 43dB
Aux Sends: 49dB
Monitor Out: 66dB
Matrix Out: 68dB
Phones Out: 66dB
Input Impedance
Mic Input: 3 kOhms, balanced
Mono Channel Line Input: 34 kOhm, balanced
Stereo Returns: 20 kOhm, balanced
Talkback Mic: 1 kOhm, balanced
Output Impedance
Main Out: 100Ohm balanced, XLR outputs, 300Î TRS outputs
Direct Out: 300Ohm
Group Out: 300Ohm
Monitor Out: 300Ohm
Matrix Out: 300Ohm
Aux Sends: 300Ohm
Phones Out: 25Ohm
Channel Level LED (Sensitivity)
0 LED = 0 dBu (normal operating level)
VU Meters
Main Left and Right, Compressor Input, 12 segments:
Clip (+20), +15, +10, +6, +3, 0, -2, -4, -7, -10, -20, -30 0 LED = 0 dBu
Compressor Gain Reduction, 12 segments: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15 dB
AC Power Requirements
Power Consumption:
100 watts
Universal AC Power Supply: 100 VAC - 240 VAC, 50-60Hz
Dimensions: (HxWxD): 7.3" x 31.2" x 21.9", 185mm x 792mm x 555mm
Weight: 39.5 lb./ 17.9kg
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