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I can't promise it will/won't work. I use two different cables (depending on the room): 1. a speaker cable with one end fitting the headphone port and the other plugging right into the speakers. 2. The second cable I use is similar to what you are using: for my TV/speakers in the den I have a cable that fits the headphone port on the laptop with a RCA type male connections on the other side (these plug into a receiver driving my speakers. It works well/

I did buy several different cables to ensure it would work. I then returned the ones I didn't need.

Hope this helps.
 
Toslink is much better
Lichtleiter-Toslink-Klinke-5.jpg
 
whoa... what's a toslink.. ive never seen that before = =

It's a digital optical cable. Provides much better audio signal than using component or mini-jack cables. The macbook pro has a mini-toslink jack, which you can use this cable to connect to your stereo receiver that should have a toslink connection. I used a regular toslink cable to connect my 360 to my reciever. It really does do a better job.
 
It's a digital optical cable. Provides much better audio signal than using component or mini-jack cables. The macbook pro has a mini-toslink jack, which you can use this cable to connect to your stereo receiver that should have a toslink connection. I used a regular toslink cable to connect my 360 to my reciever. It really does do a better job.

Just learned something new. I did not know that the MCB had a toslink. I also did not know that a toslink could be used for audio. Yes I've been way out of the AV seen.
 
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