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The Ultimate MIDI to CV Converter

There are many excellent, functional MIDI tools and devices
(DAWs, controllers, sequencers, keyboards, drum pads, etc.)
and as many fantastic Eurorack modules. Poly 2 seamlessly
connects these worlds thanks to its multiple inputs and outputs
and loads of configurable parameters.

The interface

Connect your computer, smartphone to its USB port; your class compliant MIDI controllers via USB Host, and all the other device via the MIDI jack port. A whole array of analogue outputs give you the versatility to hook up loads of different types of modules. Easily adjust every setting you need thanks to the OLED screen with a straightforward menu system. Set, save and recall your the parameters with a click of an encoder.

Dimensions: 14HP wide, 24mm deep.

It's compatible

We love MIDI, especially for its vast number of applications.
In order to be compatible with every MIDI device,
Poly 2 gives you a wide array of customisable parameters.
It also works excellent with MPE devices.

On the other side, there are a lot of voltage norms.
Poly 2 shines here too. With its various standards
for Pitch and Gate, it gets together with Eurorack modules,
Buchla and every other CV operated instrument.

Four modes, totally different possibilities

First and Next modes are perfect for building your unique polyphonic synthesizer.

Channel mode lets you choose which MIDI Channel is responsible for which voice. This mode is what the majority of users utilise to connect DAWs or external sequencers.

Note mode translates data received from MIDI Notes C through G and directs them into the corresponding voices (no matter the octave). This scenario works excellent for triggering drums from drum pads or drum triggers.


Up to 8 voices (Gate + Pitch pairs) and 12 configurable outputs. Full input and output customization (pitch standard, pitch bend, middle C, voltage standard, etc.). Save and Recall your sets of parameters (plus autosave option). Different Play modes (First, Next, Channel and Notes) for different use cases. Musical scale filtering (allows you to generate instant musical results from any type of controller). MPE compatibility.

Polyend Poly 2 module in action

With the help of Poly 2 module a MIDI sequencer Seq is steering a Eurorack synth rig.
Next video


USB A - Host (+5V)

MIDI Jack (with Thru and SmartThru option)
Up to 8 voices (Gate + Pitch pairs)
Up to 12 configurable CVs

Poly 2 MIDI to CV Converter

Endorsements Reviews
“The Polyend Poly Module has reconfigured the way I use my modular system. All three modes work exactly how you would imagine. Impressive!”
Jimmy Edgar
"When I saw Poly from Polyend I was happily shocked because it was exactly what I was looking for."
Robert Lippok
"This module has the potential to refresh the way you look at the classic music tools, various MIDI devices or applications. It breathes a new life into my modular synth environment."
Michał Wolski
"I am loving both the Seq and Poly, this couple is absolutely gorgeous and insanely fun to use."
Richard Devine
"Perfect product, just love it! The Poly is ridiculously simple to set up (remember to set the switches the way you want before putting in the case!) and you get 8x4 channels (I feel confident saying that’s enough for my setup)! The ability to use a step sequencer like Numerology or just record (and edit) midi clips in Bitwig (or another daw), including harmonies, rhythmic counterpoints, polyrhythms, morphing, pattern change and unlimited memory, is a game changer for me personally. It’s not flexible in its routings, so perhaps there are better options for others and doesn’t send audio rate signals obviously ... but for me simple was exactly what I needed to trust computer/modular interaction again. Great module!! Makes everything around it better if that’s the way you like to work. And it also arrived from Poland three days after ordering in New York!."
Pzoot user on muffwigller.com
“The Eurorack market offers plenty of MIDI to CV modules, but last year, when Polyend announced Poly we were immediately hooked. It’s not easy to find an 8-channel polyphonic (hence the name) MIDI to CV converter, that’s super easy to use (no menu diving!), with MIDI Din, USB and USB Host capability (+ MPE support)! As you would expect, Poly works great with Polyend’s own Seq sequencer, but thanks to its nifty features, we think this module should also be on the radar of any Eurorack user looking for multichannel MIDI-CV converters. Polyphony is (slowly) getting more popular in the Eurorack world, and Poly is probably the easiest entry point for these new sonic explorations. Also, Poly supports MPE controllers (such as the ROLI Seaboard Rise, Linnstrument, etc.), which is a big plus in our book. Adding an expressive controller like the ROLI Seaboard Rise to a Eurorack setup can make quite a difference. That said, the cool thing with POLY is that it’s a pretty versatile tool and can also breathe new life into your pieces of gear that were collecting dust. Last but not least, Poly can be an ideal bridge between your modular system and your DAW of choice. You can, for instance, go crazy sending modulation and automation messages to various modules. Needless to say, such a straightforward module comes with an inevitable trade-off between ease of use and features."
Fab from audionewsroom.net
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