A:
Thank you for your question. The 151SE speakers require a third party receiver or amplifier which outputs between 10-100 watts per channel, 4-8 ohms. The speakers would connect to the output of the receiver and the audio output of your computer would connect to the amplifier.
Alternately, you could look at our Companion 2 Series III, Companion 20 or Companion 5 computer speakers which do not require an additional amplifier. We hope this helps!