bcb, yes you should use baffles. i'm sorry, did i not tell you that...
i must be getting old! anyhow,yup most baffles are pretty simple and similar. baffles are used for a bass reflex additive in smaller speakers.they help by sealing the surrounding area of the speaker, thus increasing performance by reducing extra speaker cone travel(hyper-extension) that happens when a speaker doesn't have enough air resistance. if you are making kick panels and you haven't completely sealed the inside with fiberglass or some sort of sealer, the speaker will be over-worked and lose performance. adding baffles to any speaker (6x9",5",5-1/4",6",6-1/2",6-3/4",5x7",4",4x10",4x6",6x8") will increase the overall sound quality and speaker life by doing all of the mentioned above. tweeters are too small to benefit from a baffle. they only produce higher frequencies and are created differently than a midrange speaker. baffles are our friends!
let me know if i can answer anything else for you guys! this is fun