Shure Beta 98A User Manual

Page of 3
Model Beta 98A Wired Microphones
Specification Sheet
TL1074 (Rev. 1)
Printed in U.S.A.
©2010 Shure Incorporated
BETA 98A Instrument Microphone
General Description
The Shure Beta 98A is a compact, high-output, 
condenser microphone for professional sound 
reinforcement and studio recording.  An ex-
tremely uniform cardioid polar pattern provides 
excellent gain before feedback and off-axis 
rejection of unwanted noise. Its high sound 
pressure level (SPL) capability makes it useful 
for a variety of acoustic or amplified instruments 
including drums, piano, reed, wind, and strings.
Variations
•  Beta 98A/C includes microphone, 7.6 m 
(25 ft) light-weight interconnect cable, 
preamplifier, and RK282 shockmount swivel 
adapter.
•  Beta 98AD/C includes microphone, 4.6 m 
(15 ft) heavy-duty interconnect cable, 
preamplifier, and A98D microphone drum 
mount.
Performance Characteristics
•  Exceptional low-frequency reproduction
•  Extremely high SPL handling
•  High output level
•  No crossover distortion
Features
•  Premier live performance microphone with 
Shure quality, ruggedness, and reliability
•  Uniform cardioid pick-up pattern for maximum 
gain before feedback and superior rejection of 
off-axis sound
•  Tailored frequency response specifically 
shaped for drums, percussion, reeds, and 
horns
•  Compact design reduces stage clutter
•  Wide dynamic range for use in high SPL 
environments
•  Optional A98D mount is unobtrusive, 
versatile, and easy to adjust
•  Enamel-coated metal construction and 
stainless steel inner grille resist wear and 
abuse
Interconnecting Cable
The supplied cable connects the BETA 98A to 
the preamplifier. If necessary, up to 23 m (75 ft) 
of cable can be used between the microphone 
and preamplifier without signal loss.
Shockmount Swivel Adapter
Use the following procedures to mount the Beta 
98A on the swivel adapter:
1. Connect the microphone to the adapter.
2. Thread the cable through the C-clamp and 
slide the connector into the C-clamp until 
snug.
3. To reduce wear on the cable, snap it into the 
stress reliever clip leaving 5 to 7 cm (2 to 3 
inches) of slack on the connector side.
BETA 98A MOUNTED WITH 
SWIVEL ADAPTER
BETA 98A MOUNTED WITH A98D
A98D Drum Mount
The Shure A98D mounts the Beta 98A on a 
drum or cymbal stand.  Reference the furnished 
A98D guide to correctly mount the microphone.
Applications and Placement
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.