well im in the process of trying to find someone to buy my current system, which you can see in my signature, for at least 250. subs, amp, and box. i think its reasonable, and after i sell that im going to put that 250 to new subs. my girlfriend is going to buy the amp for me, and she said 300 is the most lol, got lucky with that. but my budget is around 500 to 600 bucks