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SPECIFICATIONS
Type
Dynamic, close-talk
Frequency Response (at 8 mm [
50 to 15,000 Hz (see Figure 2)
TYPICAL FREQUENCY RESPONSE
Polar Pattern
Cardioid,uniform with frequency, symmetrical about axis
(see Figure 3)
TYPICAL POLAR PATTERN
lmpedance
Rated at 150 Ω (223 Ω actual)
Sensitivity (1,000 Hz at 8 mm (
Open Circuit Voltage: –65.0 dBV/Pa* (0.45 mV)
*1 Pa = 94 dB SPL
Hum Sensitivity (typical)
35.5 dB equivalent SPL in a 1 mOe field
Polarity
Positive pressure on diaphragm produces positive voltage
on pin 2 of microphone connector. See Figure 4.
CARTRIDGE
RED CODED SIDE
RED
SM10A WIRING DIAGRAM
Connector
Professional three-pin male XLR audio connector.
5
/
in.])
16
FIGURE 2
FIGURE 3
5
/
in.)
16
XLR CONNECTOR
2
1
3
BLK
FIGURE 4
Cable
Non-detachable, 1.5 m (5 ft), two-conductor, shielded,
plastic-jacketed
Case
Black thermoplastic microphone and pivot housing, anod-
ized aluminum end caps, stainless steel grille, and boom
Dimensions
See Figure 5
SM10A AND HEADBAND ASSEMBLY DIMENSIONS
Net Weight
78 grams (2.7 ounces) less cable and connector
Packaged Weight
950 grams (2 lbs., 1
Certification
Eligible to bear CE Marking. Conforms to European EMC
Directive 89/336/EEC. Meets applicable tests and perfor-
mance criteria in European Standard EN55103 (1996)
parts 1 and 2, for residential (E1) and light industrial (E2)
environments.
ON-OFF SWITCH MODIFICATION
As supplied, the SM10A does not include an on-off switch.
However, one can be easily constructed using a Switchcraft
T3F 3-pin female professional audio connector, or equiva-
lent, with an integral switch. This connector can be attached
to the cable connecting the SM10A to the PA system. Refer
to the wiring diagram in Figure 6
NOTE: In order for the switch to be silent, phantom power
must not be active on this input channel.
INPUT
1 2
3
ON-OFF SWITCH WIRING DIAGRAM
Reference
Designator
J1
3-Pin female audio connector, chassis mount
J2
3-Pin male audio connector, chassis mount
S1
2 2
FIGURE 5
1
/
oz)
2
J1
J2
OUTPUT
2
3
S1
FIGURE 6
Part Description
Miniature toggle switch, SPST
1
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