Where and what exactly is the line out on my macbook? On the left side with all the ports, there is an opening for a computer lock, a headphone out, then another "out." Is this second out the line out? I'm trying to find a way to get the cleanest possible signal out of my macbook without all the...

I am looking to replace my desktop speakers. My total budget is under $200 for a three speaker system or $250 total for a 5 speaker system surround sound. What is your speaker system? What's the best available at or below my price point?

I already have Koss KSC75's and Portapros, as you might guess. I am considering a cmoy, or amp such as ibasso, since I read the 75's sound even better with cmoy or an amp. However, I'm also considering "upgrading" to the Grado SR60. Would my money be better spent getting the Grado 60's OR...

OK, I've got a rockin' pair of portapros and just picked up a beautiful pair of KSC75's. Now, I am interested in getting a portable amp. To start, I want a cmoy. It's just less expensive and I do want to minimize the cost while trying to maximize sound quality. What's the best place to buy...