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OPERATOR'S
MANUAL
OSTRAWA
BOHUMIN
USTKA
full stereo voltage controlled mixing console
& mixing console commander & mixing console breakout
Models of 1966
Ostrawa: Full stereo architecture ∙ Natural volume response ∙ Channel level indicators ∙ Stereo auxiliary send
and stereo returns ∙ Clickless channel muting ∙ Expandable by chaining more units
Bohumin: Additional AUX B effect loop ∙ Full stereo sends and returns ∙ CV inputs for controlling AUX B sends
∙ Return attenuators for AUX A and AUX B ∙ Gate control inputs for clickless channel muting
Ustka: Per-channel VCA direct outputs ∙ Modular or line signal level
xaoc devices sp. z o. o.
working class electronics
made in the european union
www.xaocdevices.com
operator's manual rev. 1966/1.4, page 1/10
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Summary of Contents for Xaoc Devices OSTRAWA
- Page 1 & mixing console commander & mixing console breakout Models of 1966 Ostrawa: Full stereo architecture ∙ Natural volume response ∙ Channel level indicators ∙ Stereo auxiliary send and stereo returns ∙ Clickless channel muting ∙ Expandable by chaining more units Bohumin: Additional AUX B effect loop ∙...
- Page 2 DC-coupled sig- on Ostrawa) and aux b, as well as four gate inputs nal path designed with high-quality VCA and opa- for automated clickless muting of each stereo input mp chips.
- Page 3 10-pin ribbon cable ❶ (fig.1), both supplied with the unit. Note that these cables are deliberately we advise against replacing it with a longer cable. fig. 2: chaining multiple ostrawa units & connecting the bohumin & ustka expanders operator's manual rev. 1966/1.4, page 3/10...
- Page 4 The jumpers must be set individually for each and the other end into the header labeled ustka of the outputs. expander ❺ at the back of Ostrawa. Pay close attention to cable orientation. The red stripe in- The modules should be fastened by mounting the dicates pin #1 and should match the arrowhead supplied screws before powering up.
- Page 5 ⓱, stereo aux return a inputs ⓲, and direct inputs jacks ⓳ that allow CHANNEL MUTING you to stack other sub-mix modules with Ostrawa. A short press on the active|aux pre button si- lences the corresponding channel. This state is STEREO VS MONO SOURCES confirmed by turning off the button backlight.
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Page 6: Auxiliary Outputs
A dedicated aux a knob in each channel sets the The mixing bus in Ostrawa features a soft clip- amount of signal added to the aux bus. ping circuit that offers a gentle overdrive for sig- nals exceeding 16Vpp. - Page 7 AUX returns, i.e., the stereo signal pairs patched so that the out header of the preceding unit goes into aux return a on Ostrawa and aux return into the in header of the following unit (fig. 7). The on Bohumin, respectively.
- Page 8 OVERVIEW ously record your stems or sources before they are BOHUMIN AUX BUSES mixed down in Ostrawa. Its four pairs of stereo out- puts allow you to record them separately in your Please keep in mind that auxiliary effects operate in parallel to the main summing bus of the mixer, DAW or in a multi-track recorder.
- Page 9 If you are using plug adapters, keep in mind Our Coal Mine black panels are available for all that they may be wired differently, and not all of Xaoc Devices modules. Sold separately. Ask your them will work properly with such cables. favourite retailer. •...
- Page 10 purchase.
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