Eisenberg Audio Releases Vier, Emulates Doepfer MS-404

Eisenberg_VierBerlin-based audio software developer Eisenberg Audio has released a new software synthesizer, Vier.

If you remember high school German class, you’ll recall that Vier means four, and Eisenberg’s Vier emulates the Doepfer MS-404, the monophonic analog synthesizer from the 1990s.

The Doepfer MS-404 was a single rack device. Vier combines four independent rack modules in one interface. More than an emulation of a beloved vintage synth, Vier uses modern technologies for its synthesis engine, such as anti-aliasing oscillators, which are capable of audio range modulation and zero-delay feedback filters best known from synthesizers like LuSH, Monark or Diva.


Vier also offers a range of options for parameter linking and cross modulation as well as “intelligent” voice management.  The parameter linking allows the building of groups, which can be manipulated and modulated by macro parameters together, offering fast access to the most important sound properties, and operates the four modules as one unit. Vier also contains a variety of factory presets that may be loaded, adjusted, saved, or marked as favorites. Additionally, users may create, save and load their own presets.

The intelligent voice management offers different creative modes, in which each note of a chord can be assigned to the four different modules and operated with unlimited polyphony.

Compatibility. Vier runs as a stand-alone product on Windows and Mac OS X, or as plugin via VST, AU, RTAS and AAX.

Pricing and Availability. Eisenberg Audio’s Vier synthesizer is available now at from the company’s website. Regularly priced at $99.00 (EUR 99.00), Vier is available through the end of September 2014 for an introductory price of $69.00 (EUR 69.00). A free trial version is also available. More information is at the Eisenberg Audio website.

7 thoughts on “Eisenberg Audio Releases Vier, Emulates Doepfer MS-404

    1. I didn’t see any audio demos on the site. A demo version of the app is available for free download, though that’s not the same.

  1. This is EXACTLY what kind of interfacing we need: each VCO pertaining to note hierarchy… but what good is that if you don’t have freely assignable VCAs? Its a HUGE oversight IMO. With your setup one could ring modulate 4 notes together… its right there under the developer’s nose: the very thing that could distinguish your plugin from every other single plugin

  2. Tried the demo and as a proud owner of the real 404, I can say it’s a decade away from the extreme cold and agressive sound of the real 404 ….
    The beauty of the 404 was it’s audio range modulation capacity and audio intput (mostly).
    Audio range modulation is present on the VST but cant compare to the power of the real 404.

    And the presets … god … sooo bad ….

  3. HI all,

    Just tried it and it was an instant buy.

    Thanks synthtopia for pointing my attention to this. trz303, I can absolutely not agree with you. I too have two 404s and yes the Veir sounds a little different but thats what my two 404s do too compared to each other. The clean industrial sound that you’re talking of is very present still having these analog oddities in it. Good Job.

    And now comes the best part guys: the DRIVE knob!!! Check that out. BRILLIANT!

    I dunno if I’ll use the voice-management a lot. It’s definitely fun and adds a new dimension but I think in 90% of the cases I’ll use either unison or each unit on a different channel. The linking feature though makes the whole thing very organic.

    Lovely VSTi with a very reasonable price tag. Good Job!

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