I am considering making the switch from PC to Mac, the desktop switch is easy, I would simply replace my Dell with an iMac, but I also need a portable computer (running OS-X not iOS) to replace my netbook. I will be using it for Internet access, light audio editing and streaming with Audacity, QuickTime and VLC (Ogg, FLAC, etc), some light spreadsheet work (I will switch to Numbers), heavy writing (I will switch to Pages), Sykpe, iCal, Mail, and Google Earth. I need to check the output of the headphone/lineout port, to see if it can drive the monitors that I use for linguistics. (16 Ohm Beyerdynamic DT100 and 24 Ohm Sony MDR-XB700). Any help would be greatly appreciated, I have looked around but I cannot find any detailed specifications for the headphone/lineout on the MacBook Air 11.6, the Apple Technical Specifications simply list the port as "Headphone Minijack". If any of you have low impedance headphones with large drivers and could spare the time to plug them in and let me know what the volume is like, I would be very grateful. Thanks for your time.