RDX - FM Manager - AUv3
Sysex .syx librarian & player
$1.99
Also Included In
RDX turns your iPhone, iPad, Mac into a complete librarian for classic 6-operator FM (.syx) cartridges — with real preview.
Open .syx banks (32 or 64 voices) and HEAR every patch instantly, played by a faithful 6-operator FM engine, right on your device. No cloud, no account, no subscription.
• Real FM preview — play each voice on its own or stack several in a layer
• Velocity-sensitive keyboard + sustain pedal (CC64) + the authentic DX7 velocity curve
• Organize your collection: rename, drag to reorder, group, delete and merge voices
• Export fresh .syx cartridges for your DX7 or other apps
• Original "RSJB Signature" factory bank included — electric pianos, pads, strings and organs
• Multiplatform: iPhone, iPad, Mac — plus an AUv3 plugin to play inside AUM, GarageBand, Logic and more
• One-time purchase. Everything stays on your device.
Built for DX7 owners, FM patch collectors, and anyone who wants to explore FM synthesis without the hardware.
RDX is an independent product, not affiliated with Yamaha.
Ratings & Reviews
Improvements on FM performance and read lcloud files.
The developer, Rubens Felicio, 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
- Rubens Felicio
- Size
- 1.1 MB
- Category
- Music
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Rubens Felício
