im looking to purchase a subwoofer. i have two maudio speakers i bought refurbished, they have good high and mid range sounds, I would like to have more bass output in mysetup. All I have is a desktop pc, it has a few different sound plugs for a surround sound setup. I'm looking to put the speaker in a small bedroom. Can anyone recommend a brand or model. I would prefer anything 60 dolllars or less. Thanks, daimon.