Patent attributes
An example implementation involves a first playback device receiving audio content to be played by the first playback device and a second playback device. The first playback device may be configured to play respective portions of the audio that are respectively below and above a first crossover frequency. The playback device determines a first limiting result that represents playback of the second portion of the audio content by applying, to the second portion of the audio content, a pre-determined volume-limiting function that is associated with the second playback device, where the first limiting result indicates frequencies at which a playback volume of the second playback device is limited. The playback device determines a second crossover frequency based on the indicated frequencies at which the playback volume of the second playback device is limited and plays a third portion of the audio content that is below the second crossover frequency.