I have recently acquired 5 speakers and a sub woofer. I don't really think I need the sub woofer, but I thought I would mention it. The five speakers that I have just have speaker wire coming out of them. I am new to speakers, and audio, but what I have researched so far is that I have to connect the speakers to a receiver. Receivers seem to be a bit pricey, so I was wondering if there is something that is fairly cheap, as I only paid five dollars for the speakers, that has an audio in, and 5 speaker wire ports that I can connect the speakers to. Thanks for any help.