Name the premium audio system available in the QX55.

The premium audio system available in the QX55 is the Bose Performance Series audio system. This system is designed to provide an exceptional auditory experience, offering clear, dynamic sound across a range of frequencies. It incorporates advanced technologies that enhance audio quality, ensuring that every note and sound is delivered with precision and clarity.

The inclusion of the Bose Performance Series audio system in the QX55 reflects the brand's commitment to high-quality sound experiences, making it a key feature for those who prioritize audio performance in their vehicle. By using this system, drivers and passengers can enjoy music and other audio content as if they were in a concert hall, which contributes significantly to the luxurious driving experience associated with the QX55.

Other audio systems mentioned do exist in the automotive space, but they are not specifically part of the QX55 lineup. Therefore, the focus on the Bose system underscores its tailored integration into this particular vehicle model, making it a standout feature.