In 3 weeks I have a DJ gig for a dance. But my current pa system has horrible bass. I am planning on making my own rule 18" sub later this year but there is no way I will have enough money to make it in time. I have two old 12" subs sitting around and I was thinking of using them to make a cheap crap sub but the only problem is I do not have and amp. All I have is a surround sound receiver that could power it at all. So my question is have any of u heard of being abel to rent a amp? or How much would it cost for me to rent a pretty big sub like two 18" subs and a amp? please get back to me ASAP!