This is a small addition to my latest post. I didn't change my procedure at all, I simply tested two more sets of speakers from two different vehicles at my house; my mom's Dodge Durange and my Mazda 3. The conclusions I made about the other three speaker systems still apply, so I will evaluate and compare the two systems from the cars to those tested in my house. To be honest, the results did not surprise me at all. All of the systems that I tested in my house consisted of only 2 speakers while the speaker systems in the car consist of 6 or mroe speakers. Because of the surround sound in the cars, the car speakers performed the best on the decibal test. They have the most consistently flat lines throughout the entire test. One thing that interested me was that both car systems had good results on the 50 Hz, I think that is because the systems have a lot mroe bass than those in my house. Also, the dodge durango had lower decibal readings than those taken in the Mazda, but I think that is because there is so much more open space in the durango. So all in all, the car speaker systems win, but that shouldn't really come as a surprise. They really should almost be in a different category.

