Once you get it to the AMP it,s the AMP job to do the rest,computers don't have enough watts to handle large speakers above 40 watts,of course that is my opinion.I use a 20 ft extenison to run to my AMP from the computer and it works great with 10 speakers.The AMP is not a cheapo so keep that in mine when you start running the wire through the house.PS use good heavy duty speaker wire.If you do it now as hot as it is I suggest a contractor to do the wiring 🙂.