Ace Backstage CSM-40H Installation Guide

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ACE BACKSTAGE CO., INC.

STAGE POCKET SYSTEMS

24846 Avenue Rockefeller | Suite 200 | Valencia, CA 91355
Tel: [phone] | Fax: [phone]
E-mail: [e-mail] | Web: www.acebackstage.com

INSTALL SPEC

Stage Management Products

Installation Spec Sheet
Revision: 1C.CSM-40/60

Model Numbers:

#CSM-40C, #CSM-40H, #CSM-40OM, #CSM-40UL, #CSM-60C, #CSM-60H, #CSM-60OM, #CSM-60UL

Model Name: Choir Stick Microphone with Audio-Technica® Elements

Model Description: Choir Stick Mic, 40” or 60” Long with Cardioid, Hyper-Cardioid, Omnidirectional, or UniLine Elements

Model Name: CHOIR S TICK MICROP HONE

Whenever possible, the distance from the mic to the rear­most pickup should be no more than twice the distance to
the front source, to maintain front-to-rear balance (Figure

1). Width of the pickup is approximately 2.5 times the
distance to the closest performer. If additional mics are
needed for wide sources, they should not be closer together
laterally than 2.5 times the distance to the front source, to
avoid phase cancellation (Figure 2). This typical spacing is
approximately 4 feet apart. To orient the mic element in
the proper direction, bend the gooseneck housing until
the desired location is found.

®

Note: All Audio-Technica

elements will have somewhat
different configurations depending on the element(s) being
used. With the exception of the UniLine Element (90°),
all element configurations will have broader coverage pat­terns, leading to variations in the Distance “X”, the angle
of acceptance (element polar patterns), and so on. Since
applications may vary, please use this spec sheet as a guide.
All d

rawings and measurements are for reference only.

AUDIO-TECHNICA® HYPERCARDIOID ELEMENT CHOIR
STICK MIC CONFIGURATION

CHOIR STICK MICROPHONE INSTALLATION
Ace Backstage Co.’s Choir Stick Microphone is a wide­range miniature condenser microphone designed for quality
sound reinforcement, professional recording, television, and
other demanding sound pickup applications. It requires
9V to 52 V DC from an external phantom power supply
(usually provided by the mixer). A recessed switch on the
power module permits the choice of flat response or low
frequency roll-off to help control undesired ambient noise.
Four interchangeable Audio-Technica

®

elements (Cardioid,

FIGURE 1

Vertical Positioning of

Hypercardioid Element

AUDIO-TECHNICA® CARDIOID ELEMENT CHOIR STICK
MIC CONFIGURATION

FIGURE 2

Horizontal Spacing of

Hypercardioid Element

Hyper-Cardioid, Omnidirectional, and UniLine) are available
to permit selection of angle acceptance from 90° to 360°.

Note: Figures 1 and 2 assume that the element in place
is a Hyper-Cardioid element (100°). The combination of
small size and excellent response makes the Choir Stick
Microphone ideal for choirs, instrumental groups, or the­ater stages. A uniform 100° angle of acceptance from
the Hyper-Cardioid element provides well-balanced audio
pick-up. The microphone should be located forward of the
front-most source (12”) and above the rear most source
(approximately 88”), and aimed between them (Figure 1).
Increasing the height of

the mic above the sources will tend

FIGURE 3

Vertical Positioning of

Cardioid Element

FIGURE 4

Horizontal Spacing of

Cardioid Element

to equalize the sound levels between them, but may also
increase the background/reverberant sound pickup.

Ace Backstage Co., Inc. Stage Pocket Systems | 24846 Avenue Rockefeller | Suite 200 | Valencia, CA 91355 | Tel: [phone] | Fax: [phone] | Web: www.acebackstage.com

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