superjens....SPEAK ENGLISH and study hard for that junior high math test....punk

Do round speakers sound better than oval-shaped speakers (i.e. 6x9's)? The answer is yes for most practical purposes. A round cone is more rigid than an oval-shaped one, so at higher levels, an oval-shaped speaker will distort more. The reason why there are oval-shaped speakers is because of rear deck space considerations by manufacturers. An advantage of a 6x9 speaker over a 6-inch speaker is that it has a bigger area, so it will move higher air volume, producing more bass.

Problem is that inorder for a 6x9 to have enough power to create "bass", you have turn give it so much power that it will distort as stated above.

Personally, I think anything will sound like crap in the rear of the xterra unless you seal up the speaker enclosure