Shure A15AS User manual

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.

SPECIFICATIONS
Frequency Response
Flat, 20 to 20,000 Hz $0.5 dB
Impedance
Input (XLR Female): 1,000 Ω
Output (XLR Male): 150 Ω
Attenuation (switch selectable)
15 dB, 20 dB, or 25 dB
Case
Full magnetic shield; steel with gray enamel finish
Dimensions
19 mm (3/4in.) diameter; 114 mm (4 1/2in.) long
NOTE: The equivalent single series simplex-powering resistance
is 215 Ω; this resistance should be considered in addition to any
existing circuit resistance when using the attenuator.

GUARANTEE
This Shure product is guaranteed in normal use to be free from
electrical and mechanical defects for a period of two years from
date of purchase. Please retain proof of purchase date. This guar-
antee includes all parts and labor, and is in lieu of any and all other
guarantees or warranties, express or implied. There shall be no re-
covery for any consequential or incidental damages.
SHIPPING INSTRUCTIONS
Carefully repack the unit, have it insured, and return it prepaid to:
Shure Incorporated
Attention: Service Department
5800 W. Touhy Avenue
Niles, IL 60714-4608
If outside the U.S.A, return the unit to your dealer or Authorized
Shure Service Center for repair. The unit will be returned to you
prepaid.

SHURE Incorporated Web Address: http://www.shure.com
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
Phone: [phone] Fax: [phone]
In Europe, Phone: [phone] Fax: [phone]
In Asia, Phone: [phone] Fax: [phone]
Elsewhere, Phone: [phone] Fax: [phone]