P422 Fairuz
4-Band Op-Amp Parametric EQ
$19.99
The op-amp sound that put punch and harmonic density on decades of hit records — now on iPad and iPhone. Four musical bands, TREMOR sub, live spectrum. AUv3 ready.
P422 Fairuz is a four-band op-amp parametric EQ that moves past hardware — the punch and harmonic density of classic op-amp circuits, with capabilities the originals never had.
Shape your sound with HIGH, HI-MID, LO-MID and LOW bands, each with three selectable curves (Bell, Contour, Contour X2) and proportional Q: wide stays wide, narrow finds itself. LO and HI shelves with complementary dip behavior, switchable HPF/LPF, and the TREMOR circuit laying a sub-bass foundation below 30 Hz.
Character comes from the circuit, not just the curve: OUT drives the op-amp output stage, VOICE adds drive on top of it, and HAMMER adds the output transformer after it, for body, density and saturation — op-amp color available even with the EQ bands off. Blend it all in parallel with the MIX control, no DAW routing needed.
FEATURES
- Four op-amp EQ bands with Bell / Contour / Contour X2 shapes
- Proportional Q — musical at any width
- Stepped or continuous frequency modes
- LO / HI shelves with complementary dip
- TREMOR sub-bass circuit below 30 Hz
- Switchable HPF / LPF with position options
- Op-amp output stage: OUT drive, VOICE drive and the HAMMER output transformer
- MIX parallel blend and Dual Mono L/R behavior
- Spectrum visualizer: drag the band dots, tap one for its card; IN/OUT analyzer with freeze, range, resolution, speed and tilt
- A/B states and 276 factory presets with notes, tags, search and favorites
- Out & Trim linked gain staging
- Zero latency, optional oversampling
FORMATS
- AUv3 plug-in for AUM, Logic Pro, GarageBand, Cubasis and other AUv3 hosts
- Standalone app with mic/interface input
Bring console-grade op-amp tone to your iPad and iPhone.
P422 Fairuz 3.0.1
• Move to folder: touch and hold a preset or a folder in the browser and choose Move to folder... to put it in another folder. A finger on the lists now only scrolls, so nothing moves by accident.
• Factory presets you delete, rename or move now stay that way. They no longer come back the next time the app or the plug-in starts.
• The browser fits small screens: on an iPhone held upright and in small plug-in windows, the stars, buttons and search field now fit.
• In a host app, Manuals copies the link to the Quick Guide or the User Guides. Paste it into your browser to open it.
• Smaller fixes and refinements.
Requires iOS 15 or later.
The developer, Pulsar Modular, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- ZIAD AL SIDAWI INVESTMENT
- Size
- 48.2 MB
- Category
- Music
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Age Rating
4+
- 4+
- Copyright
- © 2026 Pulsar Modular

