EML Poly-Box

EML Poly-Box Orange Image

The Poly-Box is an odd piece of synthesizer technology. It's basically a small-remote keyboard controller for ancient analog synths, but with a twist. It takes control of your analog synthesizer and, even though they're monophonic, the Poly-Box will create polyphony by programmable chord memory presets. Designed for use via CV/Gate with other EML synths.

Here is how EML describes it:
"Poly-Box is a pitch following variable chord generator controlled by your synthesizer and Poly-Box's own keyboard with built-in memory. Poly-Box takes a single pitch from your synthesizer and creates two banks of pitch sources. Each pitch bank contains 13 simultaneously available pitch sources at precise semitone intervals - covering an entire chromatic octave. The pitch banks may be in the same or different octaves, and can cover the range from one above to three octaves below the synthesizer oscillator."

EML Poly-Box Black Image

It has been used by Devo.

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3 Visitor comments
September 4, 2013 @ 11:58 am
i would love to buy it..where is available?
January 6, 2012 @ 8:51 am
I got one of this for a few years now. It´s actually a really good company for a modular synth. I found there was not many demos from this on the internet. So i put up a quick sample covering the basic tricks it can do.

By the way, the orange one pictured above seems to be modded with an extra jack/switch. Wonder what´s that for, if someone else knows...
January 7, 2010 @ 12:39 am
Tommy Mars used this togheter with his EML 101 in Frank Zappa's band.
VSE Rating

It’s Good

User Rating

Rated 2.82 (124 Votes)

  • Check Price
  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 26 voices (13 per bank)
  • Oscillators - n/a
  • LFO - n/a
  • Filter - n/a
  • VCA - n/a
  • Keyboard - 13 keys
  • Memory - 26 patches
  • Control - CV/Gate
  • Date Produced - 1977-84

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