Maag Audio EQ4M
Mastering Equalizer (Air Band)
Equalizer$2,495Manufacturer list price
Specifications
- Type
- Equalizer
- Description
- Mastering Equalizer (Air Band)
- Topology
- solid-state, Air Band
- Signal path
- Analog
- Channels
- 2
- Channel format
- dual mono (2 independent channels)
- Form factor
- 1U rack
- Rack units
- 1
- Powered
- internal (self-contained high-current +/-18V regulated PSU, no external chassis required)
- Frequency response
- -2 dB points at 10Hz and 75kHz; headroom +29 dBu @10K ohms, +28.5 dBu @600 ohms
- Impedance (Ω)
- input 48000 (XLR bal.) / output 50 (XLR bal.)
- Introduced
- 2015
- Country of manufacture
- USA
Details
Controls: Stepped/detented controls: fixed bell bands at Sub/10Hz, 40Hz, 160Hz, 650Hz (+15dB boost/-4.5dB cut); 2.5kHz shelf; Air Band shelving EQ (Off,2.5,5,10,15,20,40kHz); input attenuator 0 to -10dB per channel; separate hardwire bypass per channel plus dedicated Air Band bypass; green signal-present LED (-20dBu), red peak LED (+23dBu)
I/O: XLR balanced input and output per channel
Notable use: Flagship 1U dual-channel mastering EQ based on the original NTI EQ3 circuit, with Cliff Mäag's Air Band shelving EQ (originated 1993)
Notes: Rack (1U, dual-channel) version of the EQ4 circuit family — separate SKU from the 500-series single-channel EQ4-500/EQ4-500-BK modules (same underlying Air Band circuit, different form factor), per instructions to list form-factor variants separately. Hardware only; Maag also sells 'EQ4 Plugin' and 'EQ4 MS Plugin' software versions which are explicitly OUT OF SCOPE and excluded. Price ($2,495) is street/list price from Sweetwater (searched Apr 2026), not published on maag.audio itself — flag as dealer-sourced, not manufacturer MSRP. year_intro (2015) inferred from a Gearspace new-product announcement thread referencing a Black Friday 11/27/2015 release — not stated on the official product page, flag as inference. country_of_manufacture 'USA' inferred from third-party sources describing Mäag Audio products as handmade in Provo/Lindon, Utah — not explicitly stated on the maag.audio product page itself, flag as inference.