XAOC Devices Ostrawa

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XAOC Devices Ostrawa

XAOC Devices

Ostrawa

4.9 Expert Rating

Product Info

Article Number: 567989
Model: Ostrawa
Price: $526.90

* Prices may vary. Check retailer for current pricing and availability.

The Ostrawa is a beautifully designed and sonically transparent stereo mixer. It's a fantastic centerpiece for complex modular setups, especially those emphasizing spatial audio and dynamic control—perfect for ambient soundscapes, experimental electronic music, or anyone needing pristine stereo summing. It's a high-end component that truly elevates a modular system’s sonic potential.

Product Description

  • XAOC Devices Ostrawa
  • Eurorack Module
  • 4-Channel stereo mixer
  • Per channel: Controls for level
  • balance and aux send
  • mute button
  • level indicator
  • Stereo input
  • CV inputs for balance and level
  • Stereo output
  • stereo input for additional mixers and stereo send/return
  • Expandable with further Ostrawa
  • Praga and Bohumin expanders
  • Current requirement: 180mA (+12V) / 150mA (-12V)
  • Width: 20 HP
PROS
  • • Exceptional stereo imaging due to careful circuit design.
  • • Aux sends provide flexible routing for external effects.
  • • CV control over level and balance enables dynamic mixing possibilities.
  • • Build quality is superb; feels robust and well-engineered.
CONS
  • • 20HP footprint can be limiting in smaller modular systems.
  • • Lacks EQ or tone shaping capabilities, purely a mixer.
  • • Price point positions it as a premium investment for serious modular users.

Product Video

Key Features

Channels 4
Type Stereo Mixer
HP Width 20
Depth 115mm
Power Draw 180mA (+12V) / 150mA (-12V)
Connections Stereo Inputs (2), Stereo Outputs (2), Aux Sends/Returns, CV Inputs (2)

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Frequently Asked Questions

The Ostrawa's sonic transparency and CV control are significantly improved; the A-138 is a more basic, budget-friendly option for simple level adjustments.
Yes, XAOC designed the Ostrawa to be easily expanded with other Ostrawas and compatible modules like Praga and Bohumin, creating a scalable mixing solution.
The level indicators are well-calibrated and provide a very useful visual reference for gainstaging and avoiding clipping within your modular system.

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