MODEL BG2.1 SPECIFICATIONS
UNIDIRECTIONAL DYNAMIC MICROPHONEType
Dynamic
The BG2.1 is a dynamic vocal microphone designed
Frequency Response
for quality sound reinforcement and project studio record-
80 to 15,000 Hz (see Figure 2)
ing applications. Its dynamic cartridge features a smooth
Polar Pattern
frequency response tailored for close-up vocals, and aCardioid (unidirectional), symmetrical about axis (see
neodymium magnet for high output level and high signal-Figure 4)
to-noiseratio. The BG2.1 also maintains a uniform cardi- Output Impedance
oid pattern throughout its frequency range, which ensuresMicrophone Rated impedance is 150 W (290 W actual)
high gain-before-feedback, maximum isolation from unde-for microphone inputs rated 75 to 300 W
sired sound sources, and minimum off-axis sound color-Output Level (at 1,000 Hz)
ation. Its rugged construction, dent-resistant taperedOpen Circuit Voltage*. . . . . . ? 54.0 dBV ( .200 mV)
grille, sturdy die-cast handle, and proven shock-mounting*1 Pascal = 94 db SPL
system allow the BG2.1 to maintain its excellent perfor-Polarity
mance through even the roughest environments. TypicalPositive pressure on diaphragm produces positive
voltage opin 2 relative to pin 3 of n the microphone out-
applications for the BG2.1 include close-up vocals, instru-
put connector.
ment pickup, public address, and high-profile karaoke.
Environmental Conditions
This microphone will operate over a temperature
GENERAL RULES FOR MICROPHONE USE
oo
range of ?29 to C (?20 to 571 3F), and at relative5
1. For optimal signal-to-noise ratio, place the microphone
humidity of 0 to 95%.
as close as practical to the desired sound source.
Switch
2. For the best gain-before-feedback and isolation from
Built in On/Off switch
undesired background noise, aim the microphone to-
ward the sound source and away from undesired soundConnector
sources (see Figure 1). The BG2.1 features a cardioid3-pinmale XLR connector designed to mate with Can-
polar pattern which is most sensitive to sound directlynon XL series, Switchcraft A3 (Q.G.) series, or equiva-
in front of the microphone, and least sensitive to soundlent.
directly at 180 .Case
3. For the purest reproduction of sound, use no more thanDie cast zinc handle, black matte finish, dent-resist-
one microphone per sound source and use the fewestant tapered grille
number of microphones necessary for the application.Dimensions
4. For maximum isolation, keep the distance between mi-See Figure 5
crophones at least three times the distance from eachNet Weight
source to its microphone.296 g (10.5 oz)
5. Work close to the microphone for extra bass responseCertification
(see Figure 2). This phenomenon is known as proximityEligible to bear CE Marking. Conforms to European
effect and can be used to achieve a fuller sound, espe-EMC Directive 89/336/EEC. Meets applicable tests
cially for vocals during soft passages where extra em-
and performance criteria in European Standard
phasis ineeded. For instruments, proximity efs fect can
EN55103 (1996) parts 1 and 2, for residential (E1)
be used to change bass output without using tone con-
and light industrial (E2) environments.
trols.
FURNISHED ACCESSORIES
6. Placing the microphone too close to acoustically reflec-
Storage Bag. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26A13
tive(smooth, hard) surfaces will result in a poor frequen-
cy response and will increase the chances for feedBreak-Resistant Swivel Adapter. . . . . . . . . . . . . . . A25D
back. Tminimize this efo fect, place microphones as far4.57 m (15 ft.) XLR-to-XLR cable. . . . . . . . . . . . 90J3860
as possible from acoustically reflective surfaces.
OPTIONAL ACCESSORIES
7. Add an external windscreen when using the micro-
Shock StopperTM Isolation Mount. . . . . . . . . . . . . . A55M
phone outdoors to reduce wind noise. The A58WS
windscreen is available in 7 different colors.Windscreen (7 colors available). . . . . . . . A58WS Series
7.6 m (25 ft) Cable (XLR to XLR). . . . . . . . . . . . . . . C25J
8. Do not cover any part of the grille with your hand (see
Figure3). Covering the grille alters the sound and dis- REPLACEMENT PARTS
torts the polar pattern, increasing the chances for feed-
Dent-Resistant Grille Assembly. . . . . . . . . . . . . RK350G
back.
Cartridge Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . R194
9. It is important to keep foreign particles out of the grille
and the windscreen because they may alter the fre-The BG2.1 is backed by the Shure 2-year warranty.
quency response of the microphone. The grille may beFor service or parts information, please contact the Shure
periodically cleaned using warm, soapy water. RinseService department. Outside the United States, please
with plain water and let it dry before replacing.contact your authorized Shure Service Center.
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ACEC
