AIR OPx-4

FM Synthesizer Plugin

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  • $149.99 40% off
  • $89.99
    USD
    Cloud

     Instant Delivery

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    Cloud

    Digital Products


    Digital Products are delivered electronically either via your order status page, or via email.

    No physical product will be shipped to you!

    In most cases, the product you purchase from us is a serial number/license code/activation code to register the product with the manufacturer and download directly from them. This ensures you receive the latest version of products, and the best support when necessary.

    After purchase, your license code and relevant links will appear on your order status page, or they will be sent to you by email.

    For detailed instructions on the registration/download process, you can visit our dedicated page by clicking here: Install Instructions.

Education Proof

Products with education pricing are for students & teachers only. To prove your education status we require that you upload proof in the form of an image/PDF.

Types of proof

Student

Student ID Card, Letter of enrollment, or similar

Teacher/Lecturer

Teacher ID Card, Lecturer ID Card, Payslip, Letter from the school/college

Education proof is submitted to the manufacturer and is accepted at their discretion.

The Basics

iLok is a copy protection method used by many of our brands.

It has 3 types of activations, iLok USB, iLok Machine, and iLok Cloud.

Different brands/products will offer different iLok methods. iLok USB is always an option, but the availability of iLok Cloud and iLok Machine methods is at the discretion of the software developer.

iLok Account

For all iLok protected products, you will need an iLok account. You can create one for free here: ilok.com/#!registration

iLok License Manager

To manage your iLok licenses, there is a dedicated app called iLok License Manager. This app is used to register, activate, and move your licenses between locations.

You can download the latest installers from the iLok website: ilok.com/#!home

iLok USB Key

iLok USB

This activation is stored on an iLok 2 or 3 USB key.

It is the best option for portability, if you frequently move between multiple machines, and offline use.

iLok Machine ID

Machine ID

This activation is stored locally on your computer.

While this is a convenient way to work offline, and does not require the additional cost of an iLok USB, there is the risk of a license being lost in the case of a drive failure.

This option also requires extra care when you upgrade to a new computer, the license(s) must be deactivated on your old machine first to ensure you do not lose them.

iLok Cloud

iLok Cloud

This activation is based online, and requires a "cloud session" using the iLok License Manager.

It requires an active internet connection for the entire time you use the plugin(s).
View System Requirements
AAX Native - Compatible with Pro Tools 11 and above
AudioUnits Format VST2 Format VST3 Format
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FM Synth Sounds from Wild to Wow

OPx-4 gives you deep, compelling FM synthesis that is easy to dial in.

OPx-4 is a groundbreaking four-operator FM synthesizer with advanced sound editing and an easy-to-understand control layout.

In addition, the system has one of the most profound FM engines ever built with a 4x4 FM matrix that includes tone shaping and filtering and a 32-slot matrix for modulating your FM tones.

A Groundbreaking FM Synth Engine

With its flexible wave shaping, dual-mode filter path with 23 different filter types, six envelopes with tempo-synced looping, two LFOs, and two ramps, the OPx-4 will become your go-to FM synth.

It includes three insert FX and two global FX for use with 27 included AIR effect plugins, such as reverb, delay, distortion, modulation effects, and more.

OPx-4 Makes FM Synthesis Easy

FM synthesis works by taking classic oscillator waveforms and modulating them until they sound like something brand new.

If you've ever experimented with FM synthesis, you know it can be complicated to understand how to make great sounds.

OPx-4's simple layout and easy controls make it a breeze to experiment with FM functions without needing a deep understanding of how it works behind the scenes.

An easy-to-understand control scheme makes experimenting as easy as turning knobs until it sounds great!

4 Operators, 2 Filters, 32 Mod Sources, 1 Great Sound

Using four FM operators and an FM operator matrix, you can craft almost any FM sound you've ever heard - or even those you haven’t heard of yet!

You can adjust the values of each operator using specific on-screen controls for pulse width, formant, FM filtering, and FM shaping, as well as specific ADSR and FM oscillator envelope controls.

Built-In Effects Engine to Stylize Your Sounds

OPx-4 includes multiple effects like EQ, amp sims, reverb, delay, and modulation.

Create brilliant shimmers, dark haunting echoes, or spacey washed-out DX-style electric pianos with a cutting-edge effects engine built right into the instrument.

System Requirements

  • MacOS 10.15 Catalina and above
  • Windows 10 and above (64-bit only)
  • Intel, AMD, or Apple Silicon CPU
  • 4GB RAM or more (8GB or more recommended)
  • 2GB free storage space (20GB for all content)

Plugin Formats

AAX Native, AU, VST2, and VST3

User Manual Mac Trial Windows Trial

Crossgrade Proof

This crossgrade is for owners of a competing DAW. To prove your DAW ownership, we require that you upload proof in the form of an image/PDF.

Types of proof

A copy of your purchase receipt for the original license or the most recent update/upgrade

A screenshot of your product registration

A photo of your package (either CD/DVD or printed manual), with the unique serial number included in the photo.

Get a free upgrade to RX10

This offer is valid until RX10's release.

Eligible Products

Purchase one of the following products:

  • RX9 Standard
  • RX9 Standard - Crossgrade from any paid iZotope product
  • RX9 Standard - Upgrade from any RX Standard, Advanced, or Post Production Suite
  • RX9 Standard - Upgrade from RX Elements/Plugin Pack
  • RX9 Advanced
  • RX9 Advanced - Crossgrade from any paid iZotope product
  • RX9 Advanced - Upgrade from RX Advanced 1-8, or Post Production Suite 1-5
  • RX9 Advanced - Upgrade from RX Standard 1-8
  • RX9 Advanced - Upgrade from RX Elements/Plugin Pack
  • RX Post Production Suite 6
  • RX Post Production Suite 6 - Upgrade from RX Post Production Suite 1-5
  • RX Post Production Suite 6 - Upgrade from RX Advanced 1-8
  • RX Post Production Suite 6 - Upgrade from RX Standard 1-8
  • RX Post Production Suite 6 - Upgrade from RX Post Production Suite 1-8

Exclusions

Only the upgrades and crossgrades specified above are eligible. All others listed apply to the full version of the product only. Education versions are not eligible.