JL Audio CleanSweep - OEM Interface Car Audio

CleanSweep®

CL441dsp
CL-SSI
CL-SES
CL-RLC

CleanSweep® CL441dsp Technologies

Reviews

The cure for factory sound no longer requires major surgery.

CleanSweep® CL441dsp:
Response Correction

Response Correction is the Key:
A huge number of factory-installed sound systems incorporate non-defeatable (often radical) equalization curves aimed at correcting the response of factory speaker systems. Many also employ volume-dependent equalization effects; for example, reducing bass output at high volume and increasing it at low volume. While these characteristics might make sense within the limitations of the factory-installed speaker system, they wreak havoc on sound quality when a higher performance system is installed. Simple line level converters cannot correct for this equalization, but CleanSweep® can.

Here are some examples of factory system equalization, from a 2001 Acura® MDX with a factory-installed base system and from a 2002 Volkswagen Jetta® with a Monsoon® factory audio upgrade. In both cases, CleanSweep® makes a huge difference in sound quality. In each example, the red line shows the factory unit's frequency response (with all tone controls set flat) and the blue line shows the frequency response after CleanSweep® correction. Note how front and rear channels are equalized differently in the Acura® system and how CleanSweep® is able to correct the response of each channel independently.

Click here to download a high-resolution PDF.

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