| As automakers continue to abandon the stand-alone, standard-sized head-unit in favor of integrated designs, JL Audio's product development team felt that a need existed for a high-quality integration solution. This product would need to deliver world-class audio results while not interfering with vehicle functionality, safety or reliability. To this end, we embarked on a two-year project to develop the CleanSweep CL441dsp US Patent #7,167,515, DSP-based solution that permits almost any factory-installed audio system to serve as the source for a high-performance aftermarket sound system. | 
