JL Audio CL441dsp CleanSweep

Put one of these in a 2012 Camaro, not Boston Acoustics, to pump signal into a 4ch amp. The unit was easy to install, essentially just a fancy LOC with power, and easy to program.

The issue I ran into is this: this sound processor is one that adjusts frequencies to output a flat signal. It *doesn't* sound in a way that would improve upon a junky source unit. The 2012 Camaro's headunit is just that: *terrible.*

The issue was remedied by taking out the Cleansweep and upgrading to an MS8 (which sounded wonderful).

Ran into the same thing on a 2010 Boston Acoustics Camaro, as well. Terrible sound without a good soundprocessor or new headunit (even with all new speakers/amps).

Lesson learned: the source unit must be outputting a decent quality signal for the JL Cleansweep to do what it's supposed to do. It's a very nice active LOC, basically.

One of thing I noticed: the sound processing circuit that the Cleansweep uses introduced a slight "hiss" onto the RCA outputs. We weren't able to get rid of it, and found others had the same issue online after some research into it, another reason the Cleansweep was swapped out.

I installed it in a 2010 ford F150, i did not want to lose all the features like sync and steering wheel controls. Plus the dash is not very accepting to aftermarket head units, the cost of the JL audio unit is less than that of a head unit that has the features to replace the factory unit, i run this to a jl hd 900/5 amp and the sound is awesome, crystal clear, I tried the PAC line out converter with the harness and the sound was not good. The output adjustments were not able to go low enough and the sound was still super bass heavy not leveled. This product is totally woth it.

It made my 2011 Nissan Frontier factory stereo sounds even better. I am extremely happy with the quality of the JL audio clean sweep.

With the factory programing vehicle specific eq these days into their head units, this is a must for building around the factory hu. Major difference after calibrating this in my vehicle. Set up is easy, not a huge fan of the volume knob but it is not required to use. Works great otherwise. Could be slightly smaller, but again no biggie. Def will use again in future installs.

The end result is outstanding; exceptional sound quality. My advise is to ensure you go to a certified JL Audio installer, as my installer stumbled multiple times. First the system sounded awful and the telephone didn't work. He finally figured out I needed to have the JL Audio SSI (Signal Summing Interface) added. He then again stumbled on the installation. I ultimately started over with a JL Audio certified installer. He first called and told me my head unit was defective. After I 'pushed back a little', he agreed to talk with Tech Support. He learned I needed yet another part (small cost, not sure what it was) to get the factory phone connections to work.



Pros:

- Sound quality

- Normalized connections to allow me to use an older 4 channel amp

- Allowed me to add use of my iPod



Cons:

- Tricky installation (unless you have the right guy)

- Had to add another $100 plus part (the SSI)

- Volume can't be controlled from head unit

Signal Sensing Adapter Allows the JL Audio CleanSweep to Work with Low Voltage Factory Systems