iDP/4 4+

Control your effect processor

Delta Seven Kft.

Designed for iPad

    • 5.0 • 1 Rating
    • Free
    • Offers In-App Purchases

iPad Screenshots


iDP/4 is a MIDI editor for the Ensoniq DP/4 effects processor.
The app itself doesn't make any sound but controls the parameters of the hardware unit.

You are able to control the followings:
- 43 effect algorithms and their individual settings
- Effect routing between the processing blocks
- Load any of the factory presets
- Save the current presets to local storage
- Access the saved presets in the iOS Files app

IMPORTANT NOTE: you should upgrade your unit to the latest firmware (1.15) for the best experience.

The app is free to try and to make sure your MIDI setup is working correctly. An in-app purchase is provided to access the full functionality.

What’s New

Version 1.0.35

This update adds four 2-dimensional touch controls to the app assignable to the 8 real-time controls provided by the DP/4.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Tessellation Row ,

Fantastic app

It’s amazing having full control of something built in the early 90s , wirelessly with the CME WIDI master. Can’t imagine the ensoniq engineers ever imagined this. It be great if there was a feature for creating automation tracks. Worth every penny if you have a DP4 or iPad. Also tested on my M1 MacBook Air and it works great.

App Privacy

The developer, Delta Seven Kft., 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.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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