Audio System - Speaker Volume Fluctuates
NUMBER: 15-148-11DATE: 10/11/11
APPLICABILITY:
2010MY & (early) 2011 MY Legacy and Outback
SUBJECT:
Speaker Volume Fluctuates
Harman Kardon Audio System
INTRODUCTION
If you encounter a customer complaint that the speaker volume seems to fluctuate down and then back up on its own confirm that this occurs only when the audio system volume is set in the range of level 3 to 5 and that the concern only occurs during the playback of specific songs If all these symptoms occur, then the Harmon Kardon Amplifier may be the source To verify, listen to one or more of the specific songs the customer has indicated as exhibiting the concern on a setting of 6 or higher If the fluctuation stops, the amplifier will need to be replaced with one having revised software
COUNTERMEASURE IN PRODUCTION
To remedy the condition, Harman Kardon changed the software logic in the amplifiers The countermeasure amplifiers were used in production starting in late-January, 2011.
PARTS
Countermeasure amplifiers (identified by a blue label) are available through the Harmon Becker Power Amplifier Exchange Program. See the Subaru Claims P&P for details. Normal service procedures apply. Please reference the applicable service manual.
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