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FULL STEREO VOLTAGE CONTROLLED MIXING CONSOLE Model of 1966.
Ostrawa [ɔs’trava] is a full stereo four-channel voltage controlled mixer featuring a stereo mixing bus, one stereo auxiliary send per channel (switchable between pre and post VCA) with stereo returns, clickless muting, individual level meters, and a super-clean and DC-coupled signal path designed with high-quality VCA and opamp chips.
We have carefully crafted Ostrawa's voltage control response to achieve what we believe to be the optimal user experience found in a Eurorack mixer. The design features an elaborate control circuit that combines the internal voltages generated by the panel potentiometers with external CV over volume and stereo balance. The result is a natural attenuator response that constrains VCA gain to a usable range while minimizing distortion.
Ostrawa is a sister module to Xaoc devices Praga. It features a very similar response characteristics and similar layout of controls with some functional differences resulting from stereo inputs and limited panel space. Multiple Ostrawa and Praga units may be chained for a custom configurable mixing system. An expander called Bohumin is also available.
Full stereo architecture
Natural volume control behavior
Channel level indicators
Stereo auxiliary send and stereo returns
Clickless channel muting
Expandable by chaining with Praga, more Ostrawa units and optional Bohumin expander module
Eurorack synth compatible
20hp, skiff friendly
Current draw: +180mA/-150mA
Reverse power protection