For that much you could get and amp and a kick ass sub. What are you looking for in your system all out bass or a mix of sq and spl. Its all upon your preference.
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Cant remember who posted it but if you see it give yourself credit
Don't ever look at cars as just imports or domestics. Just because a car is made in a certain country doesn't mean that it is anything like another car from that country. An example of this is Mitsubishi reliability, just because they are Japanese doesn't mean that they are as reliable as a Honda or Toyota.
Cardomain