Apple is adding a little sound to this year’s Back to School deals. The company. Mac Pro, MacBook, MacBook Pro, or MacBook Air through the program, they’ll receive their choice of a free pair of. All things considered, the Mpow 059s deliver a pretty balanced, if not slightly bass-heavy, sound for the price. If you can get past their somewhat hefty appearance (think: Beats Solo3 but more. Alternatively, you can…