Table of Contents
Spacebar Components
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3
Setup Procedure
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5
Changing the mic holder height
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6
Changing the horizontal bar length
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6
Exploded parts diagram: Spacebar SB-30
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7
Optional Center mount bridge SB-CMB
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8
Exploded parts diagram: SB-CMB
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9
Optional Spacebar Hanging Adapter SB-HB-30/66
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10
Spacebar Hanging Adapter Setup Procedure
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12
Revision History
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13
Welcome and thanks for purchasing the Spacebar microphone positioner. We build all of our products
to be completely reliable and easy to use, so you can concentrate on making great recordings. While
the Spacebar setup and use is straightforward, please do familiarize yourself with this manual to help
avoid any common user difficulties.
The Spacebar allows for precise and repeatable setting of microphone capsule spacing, angle of
incidence, and rotation around the x axis. With precision scales for angle and distance engraved on
the Spacebar components, it is easy to make perfectly repeatable stereo microphone setups.
As well as being able to precisely set microphones in standard stereo configurations (i.e. XY, ORTF,
NOS, and AB 50cm), the Spacebar allows for exact settings through the entire continuum of angle and
spacing. This allows the user to adjust the stereo microphone array and tailor the pickup field to suit
virtually any recording environment.
We highly recommend
The Stereophonic Zoom
by Michael Williams, a technical paper that provides
detailed information on the relationship between angle of incidence, capsule spacing, and the effective
angle of the recorded sound field. It is a very useful reference that can greatly increase the flexibility of
your stereo microphone techniques.
The Stereophonic Zoom
can be downloaded from:
http://www.microphone-data.com/pdfs/Stereo%20zoom.pdf
Spacebar systems are precision fabricated from machined aircraft aluminum, brass, and stainless
steel. If properly cared for it should last a lifetime. In the event that you encounter any technical or
operational difficulties with this or any Grace Design products, please feel free to contact us at 303-
443-7454, 9 to 5, Monday through Friday, MST. Or you can email questions to: [email protected]
Stereo Spacebar User Manual Revision C
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