Yes they can be. I was going to suggest tuning around 32 hz for daily if you listen to rap. Especially if you listen to slowed music. but 4.2 would be fine.
Sorry to raise the dead here, but did you end up buying these componenets? I just ordered them and haven't received them yet. Do they get loud? and for the money, do they sound pretty good?
i might upgrade because it is going in my 2003 tahoe and i dont think it could ever be loud enough haha.
Lol I feel ya man. I drive an 03 tahoe too. I thought my 2 18's that I just put in would be loud enough. Now, I'm preordering 6 18's tonight!
http://www.amazon.com/XS-Power-D3400-Battery-Terminal/dp/B005FYJ5B6/ref=sr_1_1?ie=UTF8&qid=1344617132&sr=8-1&keywords=XS+POWER+D3400
Better battery and better price than the 2700.
I would, but height is also an issue. The way the headliner comes down on the sides, there won't be much clearance. I will double up on the front and back pieces. and how do I figure in bracing displacement inside the port?
going to mount an amp rack on the front of the box behind the front seats. And it will be tough to brace from front to back since it will be about 65" deep.