yes all i need is a sub(s) and amp and wires for 600 i can build a box for about 25 bucks

 

Well since you only have a budget of $600. This is the way I would go.

I would go with the Rockford Fosgate P3 1000 Watt/500RMS Series. I would try to go with the 2 ohm but if you sticking to you $600 budget, 4 ohms are solid. I gave you the link to a seller on ebay who sells p3's. I looked at his items for sale, I don't see any 2 ohms. You can e-mail him though.

http://cgi.ebay.com/New-Rockford-Fos...QQcmdZViewItem

Then to power these subs, go with a JL Audio Amplifier 500/1. I would tell you to go with the 1000/1 series but again your on a budget. The JL's are top flight and i have never had a problem with their amplifiers. The 500/1 will slam those subs. You can get one on ebay usually for $225-$350(depending on seller)

I read where you said your gonna build a box for $25? Remember your subs are just as good as your box and wiring. If you go cheap on the box and wiring. Then I would hold off, til you can raise more funds. A good place that sells wiring(and top of the line) www.darvex.com. Also, powering these subs, will put a drain on your alternator and battery. I would also pick up a .5 or 1 farad compacitor.

also,

if your going for looks and want the 2 sub enclosure look then nevermind what I'm about to tell you. But you can get a 10" W7 JL Audio Sub that pushes 1000 watts/500 RMS. You would only have one sub due to the fact it will cost you around $250-$300. But sounds just as good if not better then 2 rockford fosgate p3 subs. Plus you can keep some of your trunk space. Hope this helps

 

Oh my....please read around the forums before you jump in and start giving "advice"

To the OP, what exact model speakers and head unit did you buy?

 

Well he is asking for advice, and this is the best advice I can give him. If you don't agree then that's fine. No need to make a useless post. Thank You!

 

the speakers are infinity component speakers and the hu is a pioneer

 

The new rockford subs are garbage, don't buy them.

JL amps are great, but not worth the cost/watt.

Buy yourself a couple ED 13KV2's and an nine.2 or nine.2x and you should be under budget with a great sub setup.

Do you have an amp for the comps yet, you will need one.