About the recent rumors iPhone7 headphone socket design will change begins to be hot. The news that apple will give up on the new iPhone 3.5 mm headphone jack, instead, use 20 to connect headphones and equipment.

Nearly a year or two, the outside world about apple will be ready to “cut off” headphone jack rumors uninterrupted. In June last year, has been pursuing a policy of “closed” apple launched a “Made for iPhone” open licensing program, the company allows third party manufacturers to replace 3.5 mm headphone jack from the headset. Considering that apple has been spending heavily to Beats headset manufacturers by it is not surprising.

However, the use of 20 connector to replace the 3.5 mm headphone jack has two very obvious flaws: first of all, from the connection headphones can only be used on iOS devices; Second, if the user is in use 20 connect headphones at the same time, will not be able to recharge devices, because there is only one on the iPhone device from jack, unless apple out of a pin, or with the aid of other auxiliary equipment, the former need to the whole mobile phone design change, possibility is very small, which in turn has violated the apple “to Jane” concept. However, if apple really Lighting connector design is adopted, they will surely have the perfect solution.

Of course, use 20 connect headphones also has its advantages. We now use iPhone contains a 3.5 mm headphone jack, which built for music playback of digital analog conversion (or called “DAC”), and then through the loudspeaker. Restrictions on the size and cost of the 3.5 mm headphone jack, in turn, limits the quality of the DAC and amplification. However, using 20 connect headphones, DAC and amplification are built into the headset, rather than the iPhone, so you can allow the headset manufacturers to control the quality.

Therefore, foreign technology site testing is different from the connection headphones on the market, in order to “foresight” apple iPhone headphones, the pros and cons of socket design.
Testers to choose three different headphones price: $45 Brightning headphones, Philip Fidelio M2L headphones, worth $300 and $800 worth of Audeze EL – 8 headphones. Testers will they sound compared with the traditional 3.5 mm headphone jack.

Test results show that the ordinary headphones, whether it’s more than $40 or $800 worth of high-end headphones, these 20 connect headphones sound sounds better than using 3.5 mm jack earphone. , of course, compared to jack headphones, 20 connect headphones less convenient in use, it is its disadvantages, but in terms of sound, apparently from connect the headset.