Mackie ProFX12v2 Live Sound Mixer


Mackie 12-ch unpowered mixer with effects

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SKU: MACPROFX12 Categories: , Brand:

Mackie ProFX12v2 is a 12-channel (4 mono/4 stereo, 5 mono/3 stereo, 6 mono/2 stereo) live sound mixer with six ultra low-noise Vita preamps, 16 floating-point DSP effects, and 2×2 USB interface

Mackie certainly knows their way around a mixer, but that doesn’t stop them from continually upping their game, as evidenced by the ProFXv2 series of live sound mixers. Featuring six of Mackie’s latest virtually noiseless Vita preamps, designed for the wide and often unpredictable dynamics of live sound, the ProFX12v2 is outfitted with the extremely powerful, floating-point DSP-based ReadyFX effects engine, with 16 live-sound enhancing presets. The ProFX12v2 also features a sound-reinforcement toolkit that includes a graphic equalizer for “ringing out the room,” flexible I/O, and a 2×2 USB interface make recording gigs or playing music on breaks easy. And of course, all of the ProFX12v2’s goodies come housed in Mackie’s famed bulletproof steel chassis for years of reliable performance when the show must go on—with stellar sound quality. Mackie ProFXv2 mixers put the “live” in live sound mixing.

Mackie ProFX12v2 live sound mixer in one take:

  • Virtually noiseless Vita™ preamps
  • Floating-point ReadyFX™ DSP effects engine
  • Live-sound toolkit
  • USB recording and playback

Vita Preamps

Specifically designed for live sound and virtually noiseless, Vita preamps feature a discrete, Class-A front-end design, dual feedback stabilization, and bias current optimization for low-noise performance in the realm of Johnson noise (the self-noise of the components themselves).

ReadyFX Engine

The ProFX12v2 features all-new ReadyFX effects engine employs floating-point DSP, which offers high-precision and wide dynamic range. The 16 effects found in the ProFX12v2 are specifically created for critically accurate processing of high-quality audio. The precision of floating-point processing results in rich, inspiring and performance-enhancing effects.

Live-mixing toolkit

Each ProFXv2 model is outfitted with a features live-sound engineers rely on for audience-inspiring shows, such as multi-band graphic equalization, and smart features, including channel inserts and foot-switchable FX mute—ProFXv2 has the tools you need.

USB recording and playback

While live sound mixers usually don’t have the features needed for recording, and recording mixers don’t have the physical strength for touring, Mackie ProFXv2 provides the best of both worlds. For easy recording of your mix, or for music playback during breaks, the ProFX12v2 features a 2×2 16-bit/44.1/48kHz USB 1.1 audio interface. Plus, Mackie’s easy-to-use Tracktion recording software is included, so you can get started right away.

Mackie ProFX12v2 live sound mixer key features:

  • 6 extremely low-noise Mackie Vita mic preamps designed to add life to any input
  • All-new ReadyFX effects engine with 16 great-sounding effects like reverbs, delays and choruses
  • 7-band graphic EQ for tuning mains or monitors
  • Built-in USB interface to record the show or provide music playback
  • Aux output perfect for driving a monitor mix
  • 4 stereo channels plus extra stereo return for external effects or stereo
  • playback devices
  • 60mm faders for input channels, return and main/monitor masters
  • 3-band EQ (80Hz, 2.5kHz and 12kHz) on all channels
  • Directly connect guitar, bass and other instruments via Hi-Z input
  • Insert, 100Hz low-cut filter and 48V phantom power on all mic channels
  • Stereo RCA tape I/O with input level control
  • Headphone output with separate level control
  • Balanced XLR and balanced/unbalance ¼-inch main outputs
  • FX mute with remote control via footswitch
  • Break switch mutes all channels for music playback between sets
  • Built in USB recording interface with simple setup via Mac or PC
  • Great for live recording and perfect for home studios
  • Stream playback music for live or studio applications
  • Includes user-friendly Tracktion recording software
  • Legendary Mackie “Built-Like-A-Tank” design
  • Solid steel chassis protects your investment
  • Tough ABS side protection
  • Robust internal multi-voltage power supply

The Mackie ProFX12v2 mixer is a comprehensive sound-reinforcement solution that delivers both creative and practical tools for live-sound performance. For more information, call or chat online with your Westlake Pro Sales Consultant today.


Mackie ProFX12v2 specifications:

Equivalent Input Noise (EIN)

(150 ohm source impedance 20Hz-20kHz)

  • Mic into Insert Send out max gain: -125dBu

Residual output noise

  • All outputs, master levels off, all channel levels off: -95dBu
  • All outputs, master levels unity, one channel level unity: -80dBu

 Frequency response

  • Mic input to any output (gain at unity +0dB/-1dB): 20Hz to 30kHz

 Distortion (THD+N) (22Hz – 80kHz bandwidth)

  • Mic in to Main out (+4dBu output): <0.03%

Attenuation and crosstalk

  • Adjacent Inputs @ 1kHz: -90dBu
  • Inputs to Outputs @ 1kHz: -80dBu
  • Fader Off @ 1kHz: -75dBu
  • Mute Switch / Break Switch Mute @ 1kHz: -90dBu

Common Mode Rejection Ratio (CMRR)

  • Mic in to Main out, max gain, 1kHz: 70dB

Maximum Levels

  • All inputs: +22dBu
  • Main Out XLR:+28dBu
  • All other outputs: +22dBu


  • Mic in: 3.8k ohm
  • Channel Insert Return: 10k ohm
  • All other inputs: ≥20k ohm
  • Tape out: 1k ohm
  • Phones out: 25 ohm
  • All other outputs: 120 ohm (unbalanced); 240 ohm (balanced)


  • Low: ±15 dB @ 80Hz
  • Mid: ±15 dB @ 2.5kHz
  • High: ±15 dB @ 12kHz
  • Low Cut Filter: 18dB/octave @ 100Hz

Maximum Voltage Gain (EQ Flat)

Mic Input Channel to:

  • Insert Output: 50dB
  • Tape Output: 60dB
  • USB Output: 50dB
  • 1/4″ Main Output: 70dB
  • XLR Main Output: 76dB
  • Monitor Send: 76dB
  • FX Send: 90dB

Mono Line Input Channel to:

  • Insert Output: 30dB
  • Tape Output: 40dB
  • USB Output: 30dB
  • XLR Main Output: 56dB
  • Monitor Send: 56dB
  • FX Send: 70dB

Stereo Line Input Channel to:

  • Tape Output: 30dB
  • USB Output: 30dB
  • XLR Main Output: 46dB
  • Monitor Send: 46dB
  • FX Send: 60dB

Tape Input to:

  • XLR Main Output: 36dB

 USB Input to:

  • XLR Main Output: 36dB

Stereo Return to:

  • XLR Main Output: 26dB

Digital Effects

  • I/O: Mono input, stereo output:
  • No. of presets: 16


  • Main L/R Mix
  • Two columns of 12 segments each: OL (+20dBu), +15, +10, +6, +3, 0 (0dBu), –2, –4, –7, –10, –20, –30

Graphic EQ 

  • Frequency centers: 125, 250, 500, 1k, 2k, 4k, 8k
  • Gain: ±15dB
  • Assignable to main or monitor, bypass-able


  • Format: USB 1.1
  • I/O: Stereo input, stereo output
  • A/D/A: 16-bit/44.1kHz/48kHz

 Phantom Power 

  • +48V DC (to all mic channels simultaneously)

AC Power Requirements 

  • Power consumption: 30 watts
  • Universal AC Power Supply: 100-240 VAC, 50-60Hz
  • Power connector: 3-pin IEC

Physical Dimensions and Weight 

  • Dims: (H x W x W): 3-19/32″ x 14-19/32″ x 14-3/32″ (91 x 370 x 358 mm)
  • Weight: 9.0 lb. (4.1 kg)


Additional information

Weight 13 lbs
Dimensions 18 x 19 x 7 in


Built-In Effects


Aux Sends / Returns

1 send, 1 return

Mic Input #


Fader Type

Push Fader

Channel #


Buses & Routing


500 Series Compatible



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