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Mackie Onyx 32.4 Premium 32-Channel Analog Live Sound Mixing Console

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The Mackie Onyx 32.4 live sound mixing console upgrades the performance and functionality of the legendary Mackie SR32¢4 while retaining its convenient 32-channel footprint.The greatly enhanced Onyx f... Click To Read More About This Product

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The Mackie Onyx 32.4 live sound mixing console upgrades the performance and functionality of the legendary Mackie SR32¢4 while retaining its convenient 32-channel footprint.

The greatly enhanced Onyx feature set 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 32.4's all-new design for superior sound
In developing the Onyx 32.4, Mackie's 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 audio mixer in it's class. Most significantly, premium Onyx mic preamps, Perkins EQ circuitry, and a new THAT Corporation 4301 assignable stereo compressor/limiter chip were custom tailored specifically for the Mackie Onyx 32.4 mixing console.

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 Onyx 32.4 Analog Mixer. 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 the Onyx 32.4 32-channel mixer. This assignable analog stereo compressor/limiter chip was designed and manufactured in the US by veteran analog engineers, offering true RMS detection and auto make-up gain for extremely accurate and musical results. It 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 6 monitor mixes, but the Matrix Mixer can be used to generate 2 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 4, giant 12-segment LED ladders. And even the Sub Groups feature 4-segment LEDs, so you know what signal levels are at glance.


  • 32-channel premium analog mixer
  • 32 Onyx microphone preamps
  • 4-band Perkins EQ
  • 6 x 2 matrix provides 2 additional mixes
  • 6 Aux sends with pre/post switches
  • 100mm Panasonic faders
  • Built-in stereo compressor/limiter
  • Customer Reviews

Review Snapshot

by PowerReviews
MackieOnyx 32.4 Premium 32-Channel Analog Live Sound Mixing Console

(based on 3 reviews)

Ratings Distribution

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Reviewed by 3 customers

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(26 of 26 customers found this review helpful)


Great Mid-format Mixer

By Acoustech

from Phoenix, AZ

Comments about Mackie Onyx 32.4 Premium 32-Channel Analog Live Sound Mixing Console:

After our church's old mixing board began to break down, we decided to upgrade to this one. After setting the board back up and turning it on, I was astonished at how much better it sounded; the preamps are crystal clear with loads of headroom and the channel strip EQ is incredibly powerful. After several months, the only issue I have encountered thus far has been with the onboard compressor's automatic make-up gain making the hiss from some of our old gear more apparent when the dynamics drop, but this only occurs when the compressor's threshhold is very low and the ratio is very high and only loud enough to be heard through headphones.

(3 of 3 customers found this review helpful)


Good board for the money.

By Fish

from Round Lake Beach IL.

Comments about Mackie Onyx 32.4 Premium 32-Channel Analog Live Sound Mixing Console:

I have had this board on the road now for almost 2 years, and no trouble at all from this mixer. Super quite and the 6 sends come in very handy. Only wish it had separate right and left channel mains. And for the life of me i cant find a use for the matrix.

(2 of 2 customers found this review helpful)


Best Mixer

By toly xiong

from Buford, GA

Comments about Mackie Onyx 32.4 Premium 32-Channel Analog Live Sound Mixing Console:

This mixer was purchased solely based on the Customer Reviews. Product is excellent - beyond expectation. Highly recommended it. Customer Service: Excellent! Ordered the first one online. The item came in but cracks and broken corners were found all around the unit resulted from shipping. I contacted Customer Service and told to contact local Guitar Center. I contacted local Guitar Center and spoke with Audio Sound Manager in Gwinnette. After explaining situation to him he said to take mixer in. I took mixer in and a new one was ordered right away. 3 days later - new mixer arrived. Overall Review: Excellent customer service all around; local and online/corporate. Recommendation of Product: Highly

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