Playback device pairing

A device comprising:

• a processor;
• and
• a computer readable storage medium including instructions for execution by a processor, the instructions, when executed, cause the processor to implement functions comprising:
• receiving an audio signal containing a range of audio frequencies;
• amplifying, according to a gain parameter, the audio signal to be reproduced by at least one speaker;
• automatically increasing the gain parameter to a higher gain parameter responsive to a determination that no more than a subset of the range of audio frequencies is to be reproduced by the at least one speaker;
• and
• amplifying, according to the higher gain parameter, the audio signal containing no more than the subset of the range of audio frequencies to be reproduced by the at least one speaker.

A computer readable storage medium including instructions for execution by a processor, the instructions, when executed, cause the processor to implement functions comprising:

• receiving an audio signal containing a range of audio frequencies;
• amplifying, according to a gain parameter, the audio signal to be reproduced by at least one speaker;
• automatically increasing the gain parameter to a higher gain parameter responsive to a determination that no more than a subset of the range of audio frequencies is to be reproduced by the at least one speaker;
• and
• amplifying, according to the higher gain parameter, the audio signal containing no more than the subset of the range of audio frequencies to be reproduced by the at least one speaker.