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Maag Audio EQ4M Mastering Stereo EQ  From Maag

Maag's 6-Band dual channel mastering EQ with AIR BAND® - an impeccably clean and open EQ that turns their wildly popular 500-series EQ into a 19" rack-mountable powerhouse! 

Maag Audio


Retail:  $2,995.00

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What We Think

The Maag EQ4M is one of the most musical equalizers on the market. There are so many things I love about this unit, one of them being AIR BAND®. If you haven't gotten your hands on a Maag unit before, it truly opens up your mix in a unique way. All six of the frequency bands represented seem to be right where I want them, and can be pushed hard while still sounding great. If you want low end presence on your drum bus, crank up the 40 Hz knob and call it a day.

The EQ4M is intuitive, and is fully outfitted with stepped knobs for utmost precision. The input attenuation knob is an excellent feature as well. It allows me to boost the frequencies I want, and then match to the levels I originally had. I love being able to listen to the differences in my adjustments, and Maag makes this possible with input attenuation and true bypass. 

If you're looking for the best in EQ, talk to your SoundPure sales specialist about the Maag EQ4M today.

Maag Audio EQ4M

  • Signal Chain
    • Maag Audio EQ4M Mastering Stereo EQ

Manufacturer's Description from Maag

The Maag Audio EQ4M™ is a 6-Band Dual Channel Mastering EQ with AIR BAND® (shelf boost from 2.5 to 40kHz), a true in/out bypass, a transparent INPUT ATTN (attenuator), and stepped (detent) controls.

In 1993, Cliff Maag first introduced the AIR BAND® to the audio world in the NTI EQ3. The EQ3 was a dual channel 6-band EQ powered in a 19 inch rack and to this day is hailed as one of the most musical equalizers ever made. Over two decades later, Maag Audio has captured the spirit of the EQ3 in the EQ4M™ by providing More Power, More Headroom, and More Control than ever before.


More Power

The EQ4M™ rides on extremely clean +-18v rails without the need of any supporting chassis or power source. Just plug it in and make music.


More Headroom

More power, means more headroom. The EQ4M™ has an extra 2v compared to the EQ4® and boosts headroom to +29 dBu.


More Control

The EQ4M™ offers more control with its true in/out bypass, a transparent INPUT ATTN (attenuator), and an extra 15 kHz selection on the AIR BAND®. All controls are stepped (detented).

Maag Audio

About Manufacturer

Mäag Audio was founded by Cliff Maag, who has been a recording engineer for over 35 years with a strong passion for high quality sound. Cliff is an inventor of the acclaimed NTI EQ3 and the Nightpro PreQ3 & EQ3D. He was also the President of Research and Development during the early years of NTI and Nightpro. The AIR BAND® is still known to this day as an unsurpassed element of the original NTI and Nightpro gear. Now available in the new EQ4® and PREQ4® 500 Series gear from Maag Audio.


Frequency Response: -2 dB points, 10Hz & 75kHz

Nominal Input Impedance XLR): 48 K Ohms, balanced

Nominal Output Impedance (XLR): 50 Ohms, balanced

Headroom: +29 dBu @ 10 K Ohms, +28.5 dBu @ 600 Ohms

*Specifications subject to change without notice.