Harman Kardon surround sound system.
The optional Harman Kardon surround sound system offers perfect three-dimensional sound in your new BMW 3 Series Sedan and opens up a whole world of listening experiences. A treat for the ears, even at high speed.
Up to 16 speakers (600 W output) fill the interior of the new BMW 3 Series Sedan with brilliant-quality surround sound. Compared with the regular hi-fi system, the Harman Kardon system has been further optimised in terms of sound quality and is visually distinct. It includes two additional mid-range speakers and five extra tweeters, all of which have high-quality aluminium diaphragms and thus develop a significantly more discriminating sound pattern than the regular hi-fi system.
Luxurious panels made of anodised aluminium in the mirror triangles bearing the lettering serve to highlight this feature. The use of metal panels with a hexagonal structure reduces damping and resonance to a minimum. Auravox technology enables vehicle-specific and speed-dependent equalising in the bass register, giving a fine level of compensation for driving noise.