Shure BG1.1 Guía De Usuario página 2

MODELS BG1.1 AND BG1.1K
UNIDIRECTIONAL DYNAMIC MICROPHONE
The Shure BG1.1 is a reliable, multi-purpose micro-
phone designed to perform in a variety of live music, sound
reinforcement, and basic recording applications. Its dy-
namic cartridge features a smooth frequency response
and a neodymium magnet for a high output level, while its
cardioid pattern ensures high gain-before-feedback, and
excellent isolation from undesired sound sources. The
BG1.1's shock-mounting system, rugged cartridge
construction, dent resistant steel ball grille, and sturdy die-
cast handle allow the BG1.1 to maintain its performance
through even the roughest environments. Typical applica-
tions for the BG1.1 include close-up vocals, instrument
pickup, public address, and Karaoke.
GENERAL RULES FOR MICROPHONE USE
1. For optimal signal-to-noise ratio, place the microphone
as close as practical to the desired sound source.
2. For the best gain-before-feedback and isolation from
undesired background noise, aim the microphone to-
ward the sound source and away from undesired sound
sources (see Figure [1]). The BG1.1 features a cardioid
polar pattern which is most sensitive to sound directly
in front of the microphone, and least sensitive to sound
directly behind the microphone.
3. For the purest reproduction of sound, use no more than
one microphone per sound source and use the fewest
number of microphones necessary for the application.
4. For maximum isolation, keep the distance between mi-
crophones at least three times the distance from each
source to its microphone.
5. Work close to the microphone for extra bass response
(see Figure [2]). This phenomenon is known as proxim-
ity effect and can be used to achieve a fuller sound, es-
pecially for vocals during soft passages where extra
emphasis is needed. For instruments, proximity effect
can be used to change bass output without using tone
controls.
6. Placing the microphone too close to acoustically reflec-
tive (smooth, hard) surfaces will result in a poor frequen-
cy response and will increase the chances for feed
back. To minimize this effect, place microphones as far
as possible from acoustically reflective surfaces.
7. Add an external windscreen when using the micro-
phone outdoors to reduce wind noise. The A58WS
windscreen is available in 7 different colors.
8. Do not cover any part of the grille with your hand (see
Figure [3]). Covering the grille alters the sound and dis-
torts the polar pattern, increasing the chances for feed-
back.
9. It is important to keep foreign particles out of the grille
and the windscreen because they may alter the fre-
quency response of the microphone. The grille may be
periodically cleaned using warm, soapy water. Rinse
with plain water and let it dry before replacing.
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English: Print 1-2, 5
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*
Power Level** . . . . . . . . . . . . . . . . . . . . . .
*0 dB = 1 V/µbar
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
o
range of –29 to 57 C (–20 to 135
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); RF radiated
(IEC 801–3); ESD (IEC 801–2); EFT (IEC 801–4)
FURNISHED ACCESSORIES
Storage Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Break-Resistant Swivel Adapter
4.57 m (15 ft.) XLR to 1/4-in. cable
(BG1.1K only) . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL ACCESSORIES
TM
Shock Stopper Isolation Mount
Windscreen (7 colors available)
7.6 m (25 ft) Cable (XLR to XLR)
REPLACEMENT PARTS
Dent-Resistant Grille Assembly
Cartridge Assembly . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
. . . . . . . . – 76.5 dB ( .15 mV)
–55.5 dB
**0 dB = 1 mW/10 µbar
o
F), and at relative
26A13
. . . . . . . . . . . . . . . A25C
C15HZ
. . . . . . . . . . . . . . A55M
. . . . . . . A58WS Series
. . . . . . . . . . . . . . C25J
. . . . . . . . . . . . . RK349G
R186
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