According to several insiders familiar with Apple, whose products are exhibited at PORTABLE AUDIO FESTIVAL 2015, the company has been developing Hi-Res Audio streaming up to 96kHz/24bit in 2016. The Lightning terminal with iOS 9 is compatible up to 192kHz/24Bit, but we do not have information on the sampling frequency of Apple Music download music.
Notably, there have been some rumors that Apple is looking to drop the headphones jack on the iPhone 7 in favor of just using the Lightning port. This would free up precious space inside the already very thin device.
Manufacturers are already starting to make use of the higher quality output on the Lightning port. For example, the Audeze EL-8 Titanium Closed-Back Headphones offer superior performance for both your music and voice calls thanks to a headphone amplifier and 28-bit DAC built into the Lightning cable.
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