Sign in to Loot Audio
Access your downloads, purchases and more
Access your downloads, purchases and more
Pulse is a revolutionary new downloader offering blazing fast speeds and powerful control over your libraries. Loot Audio uses Pulse to power some of our downloads and to make managing your libraries more efficient for you.
After your purchase we will send you a unique code (you will also find the code in your account). Use the code with Pulse to power your download and installation. More information about Pulse can be found here.
What are Credits?
You earn Credits every time you purchase a product from Loot Audio. 3% of your order is added to your account in the form of Credits.
Use Credits for money off future orders or convert them to Sample Credits to download samples from the Sounds section of the site.
A four-operator fm synthesizer instrument
$149.00
Earn 402
1.2.0.8 Update
The latest update ensures compatibility with:
New Features
Bug Fixes & Enhancements
1.2.0 Update
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.
Leave Your Sound Design Ph.D. at the Door. 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!
Four Operators, Two Filters, Thirty-Two Mod Sources, ONE 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.
Unlock these sounds in Akai MPC/FORCE for FREE
Purchase this plugin and you'll get the ability to unlock it within your Akai Professional MPC / FORCE Standalone hardware as well as using within your favorite DAW. Seamlessly move productions from standalone hardware to your DAW with the same great sounds.
OPx-4 is designed to support VST 2 and VST3 Plugin hosts as well as full support for AU, AAX, and MPC/FORCE Standalone systems. This software requires an internet connection to authorize. You will need to install Akai's MPC desktop software version 2.11 or higher to use desktop versions of the plugins.
Windows
MAC
MPC/FORCE Standalone Compatibility
OPx-4 is designed to run on standalone MPC systems running 2.11 or later, and FORCE systems running 3.2 or later, including:
