Read all the searched posts on the subject but need a little more help please! I just purchased the 25W AURA. I have a Pioneer 409 Reciever, 5 speakers C, FL, FR, SR, SL. No Sub. How do i power the shakers? What's the cheapest way? Do i need to buy a sub, another reciever? I'm stationed in japan and they don't sell AMPS here. I can buy a sub or a reciever? Do i need both? Can you post from what out put to what input from my old reciever to what ever i neem to purchase? (if that makes any sense) Thanks in adavnce for any advise. Basic instructions please. I wish the instructions that cam with the things would detail it out.