Maag Audio PREQ4 Microphone Preamp

500 Series Microphone Preamplifier
Maag Audio PREQ4 Microphone Preamp image 1
Maag Audio PREQ4 Microphone Preamp image 1
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Maag Audio PREQ4 Microphone Preamp
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Premium Signal Path

The PREQ4 mic pre from Maag Audio gives 500 Series users a pristine, transparent signal path through which they endowed with the Air Band control. What does that do for you? It gives a shelf boost variable from 2.5kHz to 40kHz, perfect for dialing in the right amount of presence for anything you're tracking. Acoustic guitars and vocals shine through the PREQ4, and with 65dB of gain available, ribbon mics are an easy fit into any session, with the PREQ4. But the PREQ4 also performs admirably on other sources, too. The PREQ4 is a fantastic addition to the 500 Series VPR Alliance.

Maag Audio PREQ4 Microphone Preamplifier Features at a Glance:
  • 500 Series Microphone Preamplifier
  • Air Band shelf boost from 2.5 to 40kHz
  • Max Gain: 65dB
  • Frequency Response:-3dB points, 10Hz & 75kHz
  • Nominal Input Impedance XLR): mic, 150 Ohms, balanced
  • Nominal Output Impedance (XLR): 4 actively balanced
  • Equivalent Input Noise: -128 dBu (-96 dBu Actual Metered Noise)
  • Headroom: +27 dBu
  • Maximum Phase Shift: 25 degrees
  • THD + Noise:< 0.0009%
Tap into sonic transparency with the Maag Audio PREQ4!

Additional Media

500 Series Buying Guide
PREQ4 User Manual
Studio Preamp Buying Guide

Tech Specs

Preamp Type Solid State
Number of Channels 1
Frequency Response 10Hz-75kHz
Phantom Power Yes
EQ Yes
Manufacturer Part Number PREQ4-500

Customer Reviews

Based on 6 reviews
Write your review

So clean!

I've been using these mostly on acoustic guitar and vocals lately, and they're amazing. So clean and transparent, but still warm - the air band is what really makes these special. Great company and fantastic product.
Music background: guitar, synth, post production, sound design

The best

It's funny to see Reid in the video for this pre, cause his is the one I've used. I borrowed it for a tracking session, and HOLY COW. Huge, clear, clean, but not "sterile" or boring. Just awesome. The pre is great by itself, but having the Air Band is just killer. It can really open up a track, without the typical artifacts of an eq. I turn to these more than API lately.
Music background: Recording Engineer / Producer


We've used it on everything so far and between this and the shadow hills mono gama, we haven't had much need of anything else.

Best vocal pre in existence!

Some of you may have heard of NTI/Night Pro from back in the 90's. They created a pre which has since been used to record vocals on countless Grammy award-winning albums including Barbara Streisand, Mariah Carey, Tim McGraw and Black Eyed Peas to name a few. Maag Audio is the continuation of the original PreQ3 and EQ3's The big thing that sets apart this pre is the internally linear-phase Air Band, meaning as you add or subtract "air" doesn't change the phasing of the electronics allowing vocals and instruments to pop out of the mix with clarity. Even tied to some of the most sought after vintage microphones like the C-12, the PreQ4 breathes new life into your tracks. I've also used these pres on piano, acoustic guitar, snare, and overheads with phenomenal results. I highly recommend this piece of equipment a 1000 times over.
Music background: Producer, Arranger, Composer, Touring Keyboardist


this preamp is the best of all it's used. "The Air Band" is great, when you record vocals, guitar, etc. etc. try it and see. Mr. Maag thanks.
Music background: Singer & music producer
See also: 500 Series Pre, Maag Audio, Maag Audio 500 Series Preamps, Maag Audio Preamps