I see a lot of people are adding huge amps and very high end components in an attempt to hear the music at speed. The noise floor is so high in this car that overpowering it is both expensive and damaging to the ears. You still won't have clarity, and you will spend too much money for things you can't hear. My soundproofing kit (see group buy) is now done, and we get 4 to 10 db reduction in SPL, but more importantly, the critical frequencies the ear is most sensitive to are greatly reduced. This translates to a lower power requirement at any speed. I noticed many of you feel that the midbass is weak. Well, if you install the kit properly, the gain in midbass is so dramatic, you may not have to buy those high end speakers. We are not talking Dynamat or any of the other tar based components here, but a liquid viscoelastic polymer that doesn't smell, is 4 times as ridgid, and weighs 1/3 as much for better damping. In the doors in particular, the increase is amazing. It also allows those of you with rear speakers to actually hear them, and it deepens the response. Even the stock system sounds good at 60 with the top down. I thought I should get the info on this forum as some have missed reading the results on the others. This really should be the starting point for any audio upgrades, and it makes the car so comfortable even with the radio off. Please consider it. And remember, a 3 db reduction means you can halve your amplifier power, making it easier on the car's electrical system.

 

That is very interesting. Do you have any pics of what this stuff looks like installed? Is it sprayed on or brushed on?

Thanks
T.

 

It can be brushed or sprayed, but I opted for brushing because most people won't have the spray rig required. If you remember the DuPont Lucite house paint, it sort of looks like that, a thin pudding consistency. the color changes as it dries, so it's easy to tell if you are ready for the next coat. No photos, but it dries a dull gray or black, depending on which color I send out. I used grey because it is hard enough to see inside the car already. Boeing is testing it in their planes, so you may be intimately familiar with it very soon.