with $250 US, its not gonna get u anywhere. save up to about $350 US and you can get something way better.
if u don't expect much and just want some bass, get the lightning audio. don't turn up the gain expecting it to shake buildings or anything like that. as long as you take care of the sub, it will take care of you. i still have my $20 10" lighting audio sub here with me and it works after all my abuse.