Shure A15LA User Manual

©2003, Shure Incorporated
27B1918 (Rev. 3)
Model A15LA
User Guide
Printed in U.S.A.
MODEL A15LA LINE INPUT ADAPTER
The A15LA is a 50 dB attenuator. Use the A15LA to connect a
line-level or aux-level signal from devices such as mixers, tape
recorders, and CD players.
The A15LA input can be connected to either a balanced output or an
unbalanced output. If the output is unbalanced, connect the audio “hot”
lead to pin 2 of the A15LA and connect the audio ground lead to pin 1 of
the A15LA. Make no connection to pin 3 of the A15LA. Refer to Figure 1.
1
2
3
1
2
3
A15LA WIRING DIAGRAM
FIGURE 1

Shure A15LA Specifications

General

Impedance	300 Ω
Attenuation	50 dB
Connector(s)	3-socket female XLR, 3-pin male XLR
Product color	Black
Frequency range	- GHz

Weight and Dimensions

Width	19 mm
Height	114 mm

Summary

A15LA Line Input Adapter Overview

A15LA Adapter Function

Describes the A15LA as a 50 dB attenuator used to connect line-level or aux-level signals from audio devices.

A15LA Input Connectivity

Explains how to connect the A15LA to either balanced or unbalanced outputs, specifying pin connections.

A15LA Wiring Diagram

Illustrates the internal wiring of the A15LA, showing pin connections for audio signals.

A15LA Technical Specifications

Frequency Response

Specifies the audio frequency range and tolerance of the A15LA.

Impedance

Details the input and output impedance values for the A15LA.

Attenuation

States the fixed attenuation level provided by the A15LA.

Maximum Input Signal Level

Indicates the maximum signal level the A15LA can accept without distortion.

Connectors

Lists the types of XLR connectors used for input and output on the A15LA.

Case and Dimensions

Describes the construction, finish, and physical size measurements of the A15LA.

Weight

States the weight of the A15LA.

Limited Two-Year Warranty

Warranty Coverage and Claims

Details the two-year warranty period, coverage for defects, and requirements for making a claim.

Return Instructions and Service Address

Provides instructions for returning defective units and the U.S. service department address.

Warranty Exclusions and Disclaimers

Warranty Limitations

Outlines exclusions like abuse, misuse, and unauthorized repair, and disclaims implied warranties.

Legal Rights and Contact Information

Discusses state-specific rights, superseding clauses, and provides contact details for Shure Incorporated.