Ok, I want to put two 10" subs in my car. I don't need to win any contests or anything, I just want to feel the bass. I've done a little research and Phoenix Gold seems like they make good amps. A local shop has a deal that if you buy a PG Tantrum 500.2 at msrp of $450 then you get 2 tantrum 10d's free. Are these subs good quality? Or should I buy the amp online for 270 and spend the extra 200 bucks or so on better subs? I was thinking about maybe getting the JL audio 10 w3v2's, but then I'm looking at about 170$ per sub, and I don't really want to spend that much unless there's a huge difference. Another shop has made me a deal for 500$, I 'd get an xtant x3.1 amp and two xtant A1044A subs, is this a better deal?

I'd kinda like to buy from a local shop for easier installation/warranty issues, but I am keeping my options open. Any help would be appreciated. Thanks.