ADM23 Eos Audio Damage Eurorack

Stereo studio reverb module

We are pleased to announce that we have successfully ported our Eos reverb plugin to the modular format. Those of you that use this reverb in plugin form know what it can do. The Eos algorithms were designed by Sean Costello under contract to Audio Damage, and we have gotten the original algorithms to run unaltered on an ARM7 at 48kHz / 24 bit quality (with 32-bit floating point DSP.)

The algorithms in general, and the Superhall algorithm in particular, were designed to recreate the very long rich halls and plates that you hear in Harold Budd / Brian Eno recordings. They are reverbs specifically meant for synth sounds, and work very well with Eurorack.

We have changed the parameter ranges a bit to suite the Euro environment, and bare some more experimental parts of the algorithms, since Euro is a more experimental space than normal DAW work, and we felt this was appropriate, but at moderate settings, the Eos hardware and the Eos plugin are indistinguishable. I put up an audio file with the same settings on both units, and exactly 50% of the people that responded guessed wrong.

FAQ:

  1. When will it be done?
    I don't know, but the vast majority of the software part is done, and we are making prototype panels next week to test the hardware part. I currently have the software running on our testbed platform, and this is what was appearing in my Instagram feed. My best guess based on past experience is real units by NAMM, with shipping thereafter. I will update this as I have more information.

  2. How big is it?
    It will be 14HP, and have a subset of the controls of the Eos plugin. We hard-set the more tweaky controls that nobody ever touches. This was an play to keep it from costing $600 and taking up half a rack. It will be like all our other double-stacked boards, so it will easily fit in a Make Noise skiff.

  3. How much will it cost?
    We won't know until we run a quote from our assembly house, which we can't do until we verify the hardware. It will be cheaper than Erbe-Verb. I'm guessing somewhere in the $440 range, but maybe less. Probably not more.

  4. Will it have Infinite mode?
    Of course. The infinite in Eos is one of its most-loved features, and the hardware will have it as well. We went one further, and gave you two different modes, plus a gate / trigger to activate it.

  5. What is the maximum decay / RT60?
    I'm still tweaking that. I had it up to a minute, but I felt this made the shorter values somewhat harder to dial in, at the expense of a minute-long reverb that not many people would use. So I may scale the knob, or shorten it to about 45 seconds. "Really long" is the current answer.

  6. What will it look like?
    I only have the panel layout done; I haven't done the artwork yet. But I made a quick mockup so you can see the controls and where they are. The layout won't change. The art will. I will put this same panel in Modular Grid, and update it as appropriate.

  • 125 mA +12V
  • ? mA -12V
  • ? mA 5V
  • 25 mm Depth

This Module is an early prototype, a concept in development, or an AI mockup

14 HP EffectReverb