Nah, the Air is self contained, so it doesn't make sense to use with the X7. SXFI needs the USB PC signal for proper 7.1 SXFI. If you you use X7 you'd either be getting the expanded stereo form of SXFI, or worse, double processing with SBX and SXFI. Rather, you CAN use the X7 with the Air through the aux input, which is a solid method of using the Air, as long as it's powered off when doing that. You could use it as a regular headphone in that case, though then that sort of makes it a weird choice for that. May as well get a better headphone if you're not gonna use the Air's features.