Shure BETA 98AMP Manual Do Utilizador

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General Description
The Shure Beta 98AMP is a compact, high-output, con-
denser microphone for professional sound reinforcement 
and studio recording.  An extremely uniform cardioid 
polar pattern provides excellent gain-before-feedback, 
off-axis rejection of unwanted noise, and performance in 
high sound pressure level (SPL) environments.
The Beta 98AMP features an integrated preamplifier with 
XLR connection, a flexible gooseneck, and is packaged 
with the A75M Universal Microphone Mount accessory 
for precision adjustments and minimal stage clutter.  For 
use with drums, percussion, and other fixed-placement 
applications.
Features
•  Premier live performance microphone with Shure 
quality, ruggedness, and reliability
•  Uniform cardioid polar pattern for maximum gain 
before feedback and superior rejection of off-axis 
sound
•  Tailored frequency response shaped for drums and 
percussion
•  Wide dynamic range for use in high SPL environments
•  Compact design and integrated preamp reduce stage 
clutter and ease setup
•  Flexible gooseneck for precise placement and easy 
adjustments
•  Enamel coated metal construction and stainless steel 
inner grille resist wear and abuse
Performance Characteristics
•  Exceptional low-frequency reproduction
•  Extremely high SPL handling
•  High output level
•  No crossover distortion
General Rules for Use
•  Aim the microphone toward the desired sound source; angle unwanted sounds toward its null point.
•  Use the fewest amount of microphones as practical to increase the Potential Acoustic Gain and prevent feedback.
•  Follow the 3 to 1 Rule by spacing each microphone by at least three times the distance to its source to reduce 
Phase Cancellation.
•  Place microphones as far as possible from reflective surfaces to reduce Comb Filtering.
•  When using directional microphones, work closely to the microphone for extra bass response to take advantage of 
Proximity Effect.
•  Avoid excessive handling to minimize pickup of mechanical noise and vibration.
•  Do not cover any part of the microphone grille, as this will adversely affect microphone performance.
•  Add a windscreen when using the microphone outdoors.
APPLICATION
SUGGESTED MICROPHONE PLACEMENT
TONE QUALITY
Tom-Toms
One mic on each tom or between a pair of toms, 2.5 to 
7.5 cm (1 to 3 in.) above drum heads.
Medium attack; full, balanced 
sound.
Remove bottom head and place a mic inside pointing up 
toward top drum head.
Maximum isolation; full, bal-
anced sound.
Snare Drum
2.5 to 7.5 cm (1 to 3 in.) above rim of top head of drum. 
Aim mic at drum head.
Most “snap” from drumstick.
Cymbals
Close-mike with A75M mount, avoiding range of cymbal 
movement
Maximum isolation; bright, 
with plenty of attack.
NOTE: Before each use, make sure the cartridge is tightly secured on the microphone, as vibration and accidental hits 
with drumsticks may loosen it, resulting in signal loss.
Applications and Placement
Variations
•  Beta 98AMP/C: Beta 98AMP microphone furnished 
with the A75M Universal Microphone Mount.
•  Beta 98AMP/C-3PK: includes three Beta 98AMP 
microphones and three A75M Universal Microphone 
Mounts.
A75M Universal Microphone Mount
The Shure A75M mounts the Beta 98AMP on a variety of surfaces and instrument hardware.  Reference the furnished 
A75M guide to correctly mount the microphone.
Positioning the Microphone
The flexible gooseneck allows precise adjustments to the microphone without moving the mount.
Note: Excessive twisting or forcing the gooseneck into extreme positions can permanently damage the microphone.
The following table lists the most common applications and placement techniques. Keep in mind that microphone tech-
nique is largely a matter of personal taste; there is no one “correct” microphone position. 
BETA 98AMP MOUNTED WITH A75M