Originally Posted by russianpolarbear
Why arent you going with the 5 1/4??? Also you dont need Dynomat in this application it isnt needed.
any sound deadener material in a stereo system install is crucial to getting the best sound possible. I suggest putting sound deadener around the edges of where the speaker is mounted atleast 5" out from it. This help keep the plastic panel the speaker is mounted to from rattling. If you really want to go all out I would sound deaden any part of the door that will rattle and especially make sure to put a layer or two of sound deadener on the panel directly behind the speaker. this will improve midbass response and will make the music sound warmer.
Remember, installation is about 90% of the determining factor of how good your system is going to sound. You can buy the best speakers out there but they're going to sound like crap unless installed corectly. The main thing to make sure you do when installing speakers is to make sure the surface where the speaker is contacting the panel is totally air tight. I like to use thing weather stripping, or sound deadener between the speaker and the mount for just this reason. It really does make a big difference.