MOBILE HEADPHONE AMPLIFIER/DAC
We wonder if Apple ever imagined that by removing the standard analogue headphone jack from its mobile phones it was essentially handing its competitors a massive business opportunity, and consumers the incentive to massively improve the sound quality of their phones. The reason, of course is that in order to use ordinary analogue earpieces (or headphones) with any new Apple mobile phone, you now need to use an external ‘dongle’ called an ‘Apple Lightning to 3.5mm Headphone Jack Adaptor’. This has the two necessary connectors as well as a digital-to-analogue converter to convert the Apple’s digital output into an analogue voltage sufficient to power your earphones or headphones. Apple generously includes this adaptor with every phone, but if you lose it and need to buy
