My Bose companion II speakers do not have sound

SOURCE: Bose Companion II Computer Speaker: The AC power adapter burnt

My puppy chewed through the cord for my a/c adapter, I just took the speakers into Circuit City, and they found me a workable replacement (the replacement isn't BOSE, but it works just fine).  Hope that helps!

SOURCE: Bose Companion 3 Series II speakers volume problem with Adapter

use 220 volts , 50 watts

SOURCE: BOSE speakers won't work with my HP Pavilion Desktop......help!

try reinstalling the software for them then make sure your sound card drivers are installed properly

SOURCE: Loud hum when Bose Companion 3 Series II speakers are turned on.

I had the same problem for many months. I asked a sound & video professional and he suggested I move the subwoofer away from any power source. I had the subwoofer next to my UPS. Once separated and moved all wiring away from the power supply (about 12") the low bass hum was practically gone.

SOURCE: Bose Companion 3 series II speakers aren't producing sound (imac)

from what I've read, the imac has a 3.5mm (.138) jack while the Bose jack is 1/8 (.125). very small difference in size (.013), but enough to cause problems.