The source is just that...the start of it all! Almost all sources suffer from inadequate power supplies. They also do not process the delicate signal with proper non-destructive signal paths. The source is where the magic begins...a Krell Cipher for example delivers the music intact and unadulterated. It also requires a great PC AND IC's which can equal the cost of the player. It all depends on how much you desire the best sound possible. Only you can decide....but seriously, this MacBook streaming crap should be for background party music only!