An electronic component in high-end car audio systems that processes and enhances digital audio signals. DSPs can adjust various audio parameters such as equalization, time alignment, and crossover points, allowing for precise tuning of the sound system to optimize audio quality in the vehicle’s acoustic environment.
http://www.wikidata.org/entity/Q106370, https://en.wikipedia.org/wiki/Digital_signal_processor, https://www.google.com/search?kgmid=/m/0146cd&hl=en