8-inch door speakers Options

[pepsiman]

I was thinking about putting some 8-inch subs in my doors but i just read that it will rattle the doors real bad...what can i do to prevent this? I have never opened up the guts of my door can u put plenty of sound deading in there? Will that stop the rattles? Also does the subs in the door have to be shallow mount to fit? What is a good 8 inch sub? pionneer has no 8's on their site but primeir does but they are alittle pricey for me i dont need anything crazy just wantin to add some bass but it dont have to be crazy

[jess_i_74]

Bass waves tend not to be very directional below a certain point (might be as high as 500hz? can't remember). Anyways, it's just like a sub in the hatch; it has to go through a couple seats to get to you, but the waves are so big (and actually vibrate the car) that it doesn't matter.