ERS_250 4+

EMT 250 reverb plugin by DDMF

Christian Siedschlag

    • 4.8 • 5 Ratings
    • $13.99



Emulation of the first digital hardware reverb, now available as a plugin for iOS music production!

The ERS 250 reverb audio plugin was originally designed and sold by Harrie Munnik and his Dutch company EmptyRoomSystems. DDMF, having been a part in the development of the first version some years ago, is proud to carry on the legacy by distributing and further developing the set of ERS plugins. This unit is a faithful replication of the first digital hardware reverb ever made, the EMT 250. Only 250 units of that legendary studio tool have ever been produced… needless to say, the availability as an audio plugin has received an enthusiastic welcome by the audio engineering and production community. Now this plugin is finally available for compatible iOS hosts that support either AUv3 or InterAppAudio.


- Careful reproduction of the original schematics
- Adjustable reverb decay time (from 0.4 to 5 seconds), low frequency response, high frequency response, and predelay
- Additional low-pass filter to create darker sounds
- Dry-Wet ratio adjustable
- Alternative “modern” schematics available

Ratings and Reviews

4.8 out of 5
5 Ratings

5 Ratings

Enrique Raphaël Page Pérez ,

I’m sure this will get fixed over time, hopefully soon.

I am having crashes and freezes (on the AU, no the iPad) on AUM and ApeMatrix.

Also some weird audio glitches (pops) before it “crashes”. I think this little guy is the culprit as the other two from the just released bundle seem fine, but this one has given me issues the 2 out of 2 times I’ve used it since I purchased the bundle.

Looking forward to a fix and nice plugs as always !!! 🙏🏼

Mehmui ,

Sounds great needs updates to fix issues

i want to love this but the auv3 becomes unresponsive when trying to adjust the upsampling.

App Privacy

The developer, Christian Siedschlag, 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


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer


You Might Also Like