XAOC Devices Odessa

Eurorack module

  • Variable Spectrum harmonic cluster oscillator
  • Additive sound synthesis with up to 2560 partials (harmonic partials)
  • Simple operation with direct access to all parameters
  • Controls for coarse and fine tuning
  • Linear Through-Zero FM input with attenuator
  • Exponential FM input with attenuator
  • Spectrum Analyzer with 12 LEDs to visualize the distribution of partials
  • Number, distribution and level of partials can be controlled via 9 parameters and CV inputs
  • Unisono detuning of up to 5 voices possible
  • 5-Part polyphonic playable via Hel-Expander (Article Nr. 478237, not included)
  • Separate outputs for fundamental, straight and odd harmonics
  • Current consumption: 110mA (+12V) / 80mA (-12V)
  • Width: 24 TE
  • Depth: 32 mm

Further Information

Analog No
Digital Yes
Width 24 TE / HP
variants XAOC

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17 Customer Ratings
  • 5
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5 /5
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  • quality
Total
handling
features
quality
Big or not?
Laura Palmer, 14.07.2020
For my portable rig case this is quite a big module. On the other hand it's the only oscillator module I carry around cos it's SO deep. Especially since I got the HEL expander for Odessa, which basically turn it into a (technically not) polyphonic osc.
The build quality is fantastic, as with all XAOC modules.

Things to be aware of before buying:

1-The sweet spots are quite narrow, but they're the sweetest.

2-Keep in mind this is an oscillator, not a synth module which means:

3-You'll need loads of modulation to make the best of it. Even though Odessa has attenuators (that's what the sliders are for) you'll need way more of them to achieve more melodic and less experimental results.

4-If you buy the Hel expander, which I recommend, you'll need a quantizer to make the most of those inputs and play melodies.

5-You'll need a VCA, since like all oscillators, Odessa outputs constant audio at modular level.

If you already have all of this, you're ready for some deep, spacey, glassy, warmest FM trip!
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Total
handling
features
quality
Amazing tone control
raindeer, 03.08.2020
This is really a beautiful module with an incredible amount of control. Essentially you manipulate the occurrence and amplitude of different harmonics in a very playable way. They can all be externally modulated.

Some ideas if you're wondering what it can do: One of my favourite features is that the odd and even harmonics have separate outputs and this is really a genius move. By putting them out in stereo and modulating the Bank length the effect is a kind of sparkle that pans from left to right underneath the main tone.
It's fun to use the FM inputs with audible frequencies but also the Exp FM slider is just about smooth enough that, with a square LFO to modulate it, you can dial in a specific interval (with a bit of trial and error) and have your sequence move in a really melodic way.

Waiting for the Hel module to arrive so can't comment on how well they play together.
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kamielh, 03.01.2020
awesome device, delivers a shitload of intense glassy and hollow noisy additive tones, you do need lots of modulators to modulate all these inputs though, But yeah, several parameters have a filtering effect so I use this usually without any filters. It is very particular to how it interacts with filters since it often produces lone high harmonics, some filters choke on it, since they expect a tame controlled sawtooth wave or so. Nice abstract alien clean tone that reacts great to saturation. All outputs contain the fundamental which sometimes is a hassle and so unnecessary, but thats the main downside. Another downside is that you have very little control over the additive spectrum, if you want to be able to have full control over each partial, no this is not so good. I don't mind. Great stuff.
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Awesome
spewie, 23.08.2020
Awesome and somewhat mysterious, loads of possibilities for experimentation and general sonic mayhem. It is in some ways challenging to use effectively straight away as the Odessa does not let all of it secrets out in the open but is worth sticking with! I would say that you need a good set of filters, modulators, CV control to get the most of Odessa! An extremely powerful module so takes some time!!
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$469
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