dannyboy212 :
Is the L702X capable of being used as a speaker? By this I mean using a ps3 RCA cable>splitter>3.5mm extension>laptop and then having the audio play on the laptop speakers. If it works could I plug earbuds into my laptop and listen to that audio?
So if I am reading this right, your wanting to take your PS3 hook it to your PC, then listen to the PC through earbuds. Uhmmm, possible but will sounds like shit by the time your done doing all this, plainly put. You would be plugging into the MICrophone with the 3.5mm, then opening Voice Recorder or enable 'listen to mic' through Control Panel> Sound> Recording settings. But taking the nice PS3 sound dumping it across a 3.5mm connection then through Mic recorder to then a set of earbuds will just trash / limit the sound quality.
If your looking for a way to listen to the PS3 through headphones/buds, there is plenty of alternatives out there (Check GameStop or BestBuy for example).