3
SPECIFICATIONS
Type
Dynamic
Frequency Response
85 to 14,000 Hz (see Figure 2)
Polar Pattern
Cardioid (unidirectional), symmetrical about axis
(see Figure 4)
Output Impedance
Microphone Rated impedance is 150
Ω
(180
Ω
actual)
for microphone inputs rated 75 to 300
Ω
Output Level (at 1,000 Hz)
Open Circuit Voltage*
–76.5 dB (.15 mV)
. . . . . . . . .
Power Level**
–55.5 dB
. . . . . . . . . . . . . . . . . . . . . .
*0 dB = 1 V
/µ
bar
**0 dB = 1 mW/10
µ
bar
Polarity
Positive pressure on diaphragm produces positive
voltage on pin 2 relative to pin 3 of the microphone out-
put connector
Environmental Conditions
This microphone will operate over a temperature
range of –29 to 57
o
C (–20 to 135
o
F), and at relative
humidity of 0 to 95%.
Switch
Built in On/Off switch
Connector
3-pin male XLR connector designed to mate with Can-
non XL series, Switchcraft A3 (Q.G.) series, or equiva-
lent
Case
Die cast zinc handle, black matte finish,
dent-resistant wire- mesh steel ball grille
Dimensions
See Figure 5
Net Weight
290 g (10.2 oz)
Certification
Conforms to European Union directives, eligible to
bear CE marking; meets European Union EMC Immu-
nity Requirements (EN 50 082–1, 1992)
FURNISHED ACCESSORIES
Storage Bag
26A13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Break-Resistant Swivel Adapter (BG1.1 only)
A25D
. . . .
4.57 m (15 ft.) XLR to 1/4-in. cable
(BG1.1K only)
C15HZ
. . . . . . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL ACCESSORIES
Shock Stopper
TM
Isolation Mount
A55M
. . . . . . . . . . . . . .
Windscreen (7 colors available)
A58WS Series
. . . . . . . .
7.6 m (25 ft) Cable (XLR to XLR)
C25J
. . . . . . . . . . . . . . .
REPLACEMENT PARTS
Dent-Resistant Grille Assembly
RK349G
. . . . . . . . . . . . .
Cartridge Assembly
R186
. . . . . . . . . . . . . . . . . . . . . . . . . .
The BG1.1 is backed by the Shure 2-year warranty.
For service or parts information, please contact the Shure
Service department at 1–800–516–2525. Outside the
United States, please contact your authorized Shure Ser-
vice Center.
