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i found this to be a necessity for our vehicles! with the complexness of wiring and amps the jl cleansweep provides:

1) About the size of a paperback book, CleanSweep® accepts virtually any analog audio signal, from low-voltage line-level to high-power, amplified speaker-level, via its four differential-balanced inputs. With totally automatic level compensation, CleanSweep® then converts the two or four connected analog signals to digital audio with 24 bit effective resolution.

2) CleanSweep® applies the power of its state-of-the-art, 32-bit SHARC® DSP processor to automatically equalize each of the four channels with 30 bands of equalization (that’s 120 bands total), effectively correcting the response of almost any factory-equalized, full-range signal. These digital-domain corrections will range from subtle to dramatic, depending on the degree of equalization engineered into the factory audio system. To accomplish this complex feat, you simply load the supplied CleanSweep® calibration CD into the factory-installed CD player, set its volume control between 1/2 and 3/4 volume, play the designated calibration track and then press the “Calibrate” button on the top of the CleanSweep® processor. Approximately 20 seconds later, the CleanSweep® is finished analyzing and equalizing the factory-installed source’s response and stores the corrections in non-volatile flash memory.

3) CleanSweep® then converts the digitally corrected signals back to analog audio and sends them out to your aftermarket amplifiers through two pairs of low-distortion, 8 volt (RMS) line-level outputs.

4) CleanSweep® includes an intuitive rotary user interface (a knob with stops at both ends) to control the master system volume at the outputs of the processor unit for both the OEM (factory) and auxiliary sources. The master volume eliminates the effects of any equalization that is dependent on the OEM volume control position and allows a high signal-to-noise ratio to be maintained in the system. When pressed, the master volume knob also selects between the OEM and Auxiliary source. A dash-mountable status LED changes color to indicate OEM or AUX input modes. These small controls can be easily mounted within reach of the driver.

5) CleanSweep® can be deployed in signal-sensing mode, powering up and providing a 12-volt turn-on signal for aftermarket equipment whenever signal is detected. It can also be activated by a conventional 12-volt trigger, if the OEM system provides one.

6) With CleanSweep® you retain your car’s interior cosmetics and the full functionality of factory-installed vehicle functions, including navigation, OnStar®, steering wheel controls, climate controls, etc. You can also use CleanSweep's master volume knob/source selector switch instead of the factory volume control.

7) You gain the freedom to add an aftermarket source of your choice (iPod®, satellite radio tuner, DVD player, etc.) via direct line input, as opposed to inferior sounding FM-modulator approaches. Since these signals are free of equalization, CleanSweep® will pass them without applying any correction. The master volume control knob, when pressed, selects between the factory source and the additional source unit

8 ) You also gain peace of mind, because you are not messing with your car’s complex electronics. Since CleanSweep® typically connects to the factory-installed system as if it were a speaker, the possibility of creating faults or diagnostic issues when the vehicle is serviced is virtually eliminated. A CleanSweep® installation is fully reversible because there is no permanent modification of the factory system, and because CleanSweep® is not a vehicle specific interface, it can be easily integrated into your next vehicle.
 

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Thanks Brian. Exactly what we're looking for. Stickied. :thumbup:
 

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I would have used this in my M3 but wasn't out at the time. I had to settle for an Audio Control LC6.
 

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Thanks Brian,

I have always wondered about the Cleansweep if its the missing piece to adding amps and subs to a factory benz comand. Im sure alot of the guys now are gonna run out there and get one of these units! BTW, are those 10w3v3 in your Benz?
 

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Discussion Starter #7
SagaSupra said:
Thanks Brian,

I have always wondered about the Cleansweep if its the missing piece to adding amps and subs to a factory benz comand. Im sure alot of the guys now are gonna run out there and get one of these units! BTW, are those 10w3v3 in your Benz?
i recently switched from 2 10's to now 3 12w6's!!!! i had a 13w7 in my m3 before....so i needed some more bass....i think i can only start with 12's from now on..hehe
 

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More information on CL441-DSP (cleansweep)

As an authorized JL dealer and former JL sales rep here's a few things you will need to know about the Cleansweep.

-for any and all Logic7/MOST systems, you will need a signal summing device to sum the inputs of each channel. Reason for this is that there needs to be a full range signal generated for the Cleansweep to work as it is supposed to. So don't be surprised if you need additional parts.

-JL does offer a signal summing device called the CL-SSI which works well with the cleansweep. And it's the cheapest priced unit of the others available. The CL-SSI retails for $149. You can use an audio control piece listed by another member, the LC6-i, or the LC8. Peripheral makes a piece called the PCH-8 which is very similar to the Audio Control LC8. And lastly, there's the new bad boy in town called the ARC-SRI. They all serve the same primary function, but the cost of the latter units is almost doubled to the CL-SSI. *JL had issues with the first gen release of the SSI, but all the fixes has been made.

-The calibration procedure is not for the faint hearted. Have a professional install the Cleansweep.

-The Cleansweep won't guarantee a flat EQ response curve, but it'll be the closest thing you can find that isn't an aftermarket headunit.

-Alpine makes the Mobile pro system which is absolutely amazing if you're into true hi fidelity, but it also costs a couple hundred more than the Cleansweep.

If you have any problems installing this, shoot me an email.

Thanks,
Jim
 
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