What Is The BMW Harman Kardon Surround Sound System?

The BMW Harman Kardon Surround Sound System is an optional top of the line audio system available on some BMW models, including some 2 series, 3 series, 4 series, X1, and X5 models. The Harman Kardon Surround System is quite an upgrade from the standard audio unit, featuring powerful digital amplifiers with built in equalization and an abundance of speakers to provide surround sound throughout the cabin. Each system is designed specifically for the vehicle it is installed in, with different systems used in coupes, sedans, and wagons to achieve the best possible sound.