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More to come in a bit. Andrew

This in all likelihood NOT the correct way to fix your problem. In fact, it could possibly make the problem worse, or at least more difficult to get rid of. But, we'll come back to this. No. It doesn't change the HU's signal output. No. Results would likely not differ between the two. Not enough to matter. Now, with that out of the way....why do you think a line driver will solve your noise issue? What type of noise issues are you having? Do you know what the source of your noise is? What is the problem that is causing you to have noise in the system? Given your post, I'm going to go out on a limb and say that you don't know what the cause is, someone just told you that a line driver will help (or you read it online somewhere). Unfortunately, that's not the correct answer. Chances are good the outcome will be that you unnecessarily wasted money on a line driver and still have pretty much the same problem. The very FIRST thing you need to do is determine the cause and source of your noise. You can not correct a problem until you know the cause. There are several different sources and causes of noise in a system, and most of them a line driver will do nothing to fix (and in the case of ground loops, may just compound the problem). There is a Noise Troubleshooting Guide stickied at the top of this subforum. Read it, and follow the process until you find the source of the noise. The primary cause is poor grounds causing a ground loop. The fix here isn't a line driver, but to simply create a proper ground. Another issue may be that the RCA wires are routed near a noisy area in the vehicle. Again, the fix would be to simply reroute the RCA wires rather than add a line driver. There are a dozen other reasons you could be having noise, none of which are solved by adding a line driver. So, my suggestion is to follow the guide linked above and locate the source of your noise. Once you have located the source we can go about attempting to help you actually correct the problem.

better video than the first but still not that great. Put it up on youtube this time. Sub is wired to 1 ohm and gets dumb loud off of the ed nine.1 but you cant really tell in the video. When i get a good video camera ill take some quality shots but for now this will have to do. Still havent fixed the screws... ill do that today though. enjoy

Sounds like the best thing for you is to track down what is rattling and why. Is it a plastic panel vibrating against another panel? If so, get some CCF to stick between the pieces. Is it a panel resonating? If so, put some CLD on it. If you just want to spend money for the sake of spending money, then let me give you my paypal address and you can send it over to me instead of spending it on a product you might not need

Neither of those products are designed to directly affect the performance of your speakers, but LLP may indirectly impact the performance by way of reducing inbound noise from the engine and road. However, to really achieve substantial improvement you would need essentially need to cover the entire vehicle. Just doing small sections isn't really going to do much for you. And even then, the amount of improvement depends on how much of a problem you feel the road and engine noise is. For example, LLP isn't going to solve many problems if you spend a lot of time demo'ing the system parked. How much money do you have to work with?

What exactly are you trying to accomplish? What are your goals? Overkill is a closed cell foam (CCF). CCF is generally pretty poor at absorption of sound due to it's thickness and material makeup, but also not heavy enough to make a good barrier layer for reducing the tramission of things like road noise. It's best use is basically just as a decoupler for a barrier layer (i.e. used under a layer of mass loaded vinyl), or used in between panels to stop buzzing and rattling. It's pretty ineffective at most other tasks, or there are much better materials to use. Luxury Liner Pro is a mass loaded vinyl product. It's use to to block the transmission of sound, such as road noise. Luxury Liner Pro is mass loaded vinyl (MLV), which is the mass or barrier layer, bonded to a thin layer of CCF, which is the decoupling layer. If you wanted to reduce the amount of road and engine noise that enters the cabin, this would be the type of product to use.

I wish you guys could see how this sub and box murders the lows. I'm going to see If I can borrow my moms camera today to get a better video.

The video!

Neg batt to neg post on the amp??!!! WTF ? I thought the neg batt should grounded to the frame of the car. And the - on the amp to the frame too for a good ground. Be careful. You seem to do it bad.