looking for 2.1 audio for my PS3

can you explain what that is and looking at the M12's they have hookups for consoles on the Sub
 
passive = doesn't need electrical power

The PS3 can output audio over RCA cables. If for example the M12s only had a 3.5mm stereo jack, you could get a passive adapter which goes 2x female RCA to 3.5mm stereo. They cost like $2 and you probably won't need one anyway.
 
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