[Subwoofer for Klipsch 4.1 ProMedia Computer Speakers]

i've found that often the culprit (with 4.1's) is the speaker wire. After a time the copper wire tends to break right near the stereo jacks. you can wiggle the speaker cable right near the stereo jack (of the broken speaker) to see if this is the case. Or maybe you've done that already.

[Impedence question]

Does anyone know what the impedence is for the 4.1 sats? I'm thinking about buying a pioneer reciever (sub gots stolen) but i need to know if the reciever can safely power the sats.