A:AnswerI'm sorry but this model is a passive speaker.. as such, it requires a separate device (known as an amplifier or AV receiver) which would connect between the speakers and TV/PC to provide both audio signal and power to the speakers from your TV/PC.
If you're looking for a set of speakers which do not require any other devices to send sound from an audio source, I can highly recommend the R-50PM powered speakers. I hope that helps, thank you!
A:AnswerThe RP-502S II is a passive, non-powered speaker that will need to be connected to a receiver/amplifier that supplies close to 100 Watts per channel at 8 Ohms. This will ensure quality audio reproduction and longevity of the speaker's internal components.