MODEL A15AS SWITCHABLE IN-LINE ATTENUATOR
Use this balanced-line attenuator to prevent low-impedance
microphones (rated at 150 or 600 Ω) and high-output condenser
microphones from overloading low impedance inputs in high
sound pressure level applications. The values of attenuation can
be switch selected for 15, 20, or 25 dB.
Use the A15AS with any low-impedance microphone, including
phantom-powered condenser microphones, such as the Shure
SM81. It can be used in line between the microphone and its pow-
er supply. (This model is not suitable for use with the condenser
powering system called “A-B Powering.”)
The A15AS attenuator bridges the microphone output and allows
maximum signal handling with a minimum of loading-caused dis-
tortion or reduction in clipping level.
Model A15AS
User Guide
27B1915 (Rev. 4)
2003, Shure Incorporated
Printed in U.S.A.
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