Depends what it is. I've seen some quality Infinity amps, but I've also seen some junk ones.

infinity basslink I and II

NO.

What's your budget?
What's your overall preference? Loudness or quality?

no as in dont get it, or no as in you havent heard much of them

and its less about the budget and its more about the space i have

i need a setup-> box then is no wider at the bottem then 10"
would rather have a better quality then more bass
not much $ to put into it, just have ~$250 slowly building up

No as in PLEASE dont get it.

If space is a problem, look into a Rockford Fosgate I-Beam.

rather get an actually sub/box/amp setup

Well since you really dont have any space, why not just spend your money on an amp and an I-Beam? You'd even come out spending less money.


What type of vehicle?

1980 chevy silverado

really not much room

Rockford also makes shallow mount P3's.
10" and 12"

i dont have to get shallows to put back there, just can't get ones the req 9+ depth