Advice needed for setting up my passive speakers!

Advice needed for setting up my passive speakers!

Hi,
Have recently bought some Alesis Monitor one mk2 passive speakers ( http://tinyurl.com/pkzbfx7 ) and an Alesis RA-100 amp to match !

Now I want to be able to use these with my decks/mixer and pc for my daw output. Was hoping someone would be able to tell me since the back of the amp looks like this ( http://tinyurl.com/qa8flrl ) if these cables would be right.

I believe (may be wrong) that these cables will go from the 1/4 phono to rca for my mixer - Stagg STC3PCM 3m/10 ft Twin Jack to RCA Phono Cable - Black : Amazon.co.uk: Musical Instruments & DJ and are unbalanced. Then this cable to turn the rca to a 3.5 jack for the computer HQ Standard 0.2m 3.5mm Stereo Male to 2x RCA Female Cable : Amazon.co.uk: Musical Instruments & DJ

Just hoped someone with a better knowledge will know if this is right before I order the cables as id rather get it up and running asap instead of running around trying to get different cables.

Thanks

yeah the cables are correct though your better off buying an audio interface for the computer rather than running off the internal soundcard if your doing production work