©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
