If you consider yourself an audiophile,
and if you also happen to be an iPhone user, then here's an accessory that
might pique your interest – the TechFreeR Head-Fi. It is an audio DAC
(digital-to-analog converter) designed with iOS devices in mind, made to take
your music listening experience to a whole new level. The gadget also
doubles as a power bank with a capacity of 3600mAh, so it can also be used to
recharge an iPhone on the go. Neat, huh?
So here's how the audio magic happens.
The TechFreeR Head-Fi connects to an iPhone, or any iOS device, over its
Lightning interface. Digital data is then fed into an AP918 audio processor,
which is connected over I2S to a PCM1798 audio DAC. This chip, made by Texas
Instruments, supports 96kHz sampling rate at a resolution of 24 bits for an
audiophile-grade sound. At the output, a TI TPA6130 chip pumps out 130mW of
clear, amplified audio straight into your headphones.
How do you get one? Well, you can't. At
least not yet. The TechFreeR Head-Fi is a Kickstarter project with a goal of 35
000 Canadian dollars, and only a fraction of that has been raised as of this
writing. But with over a month until the campaign's end, this
audiophile-centric iPhone accessory has a good chance at materializing later
this summer. A pledge of 109 Canadian dollars gets you one in either black or
silver, which is a pretty good deal given the gizmo's estimated retail price of
over 229 bucks.
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