The brilliant tone of the BMW Individual High End Audio System is created by the absolute top quality of its individual components. Speakers are light, powerful and fitted with neodymium magnet drives. The maximum sound pressure of the extremely rigid Hexacone diaphragms is 112 dBA, with a frequency range of 18 Hz to 24 kHz. A 9-channel amplifier with DSP (Digital Signal Processing) transfers the differentiated audio signals to the individual speakers. Lack of sound clarity is eliminated by time delays and any acoustic reflection is severely reduced. To do this, the digital amplifier makes use of the unique DIRAC Live technology, which modifies both time and frequency ranges of the signal.
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