The "AS2000Lightning Adapter" of Acoustune is the adapter used to connect the wired headset to the Lightning terminal of the iOS product. Because you have obtained the MFI certification of Apple, you can make a reliable connection. In addition, since the power supply is taken from the side of the iOS device, it does not need to be charged and can be easily used. It goes on sale on June 11 for 14980 yen.
After IPhone7, the 3.5mm headset terminal is canceled. There are some Lightning adapters for using wired headphones, including pure, but AS2000 has two main features.
The first is the AS2000, because the socket part can be replaced, so it corresponds to 3. 5 mm/2.5 mm/4.4 mm terminals. This is a less common feature. In the MFI specification, although balanced drivers are not supported, most users of high-end wired headphones use cables with 2.5 mm or 4.4 mm terminals.
For example, when listening to music on the 2.5 mm balance terminal of a high-resolution player, it is common to fiddle with your phone while looking at social networking sites and other information about finding new songs and want to stream them right away. Even in this case, the headset can be replaced directly without a cable replacement or a 3.5mm conversion adapter.
The second is that the quality of the product is very good. The AS2000 uses bimetal jackets with double metal shell structure. The cable section uses the same high-purity 8-core OFC cable as the accessory cable "ARC61" of the high-performance headset "Acoustune HS1300SS" mentioned in this series. This high-quality material also contributes to the improvement of sound quality. In addition, the risk of wire breakage is also prevented by using a special winder with high durability in the film of the cable part.
In other words, AS2000 is the right product for users who use high-end headphones if they want to use the headphones directly on the iPhone. Because it complies with the MFI standard, if it is a headset with a remote control microphone, it also has the convenience corresponding to the call function and online controller.
On the other hand, AS2000 corresponds to a maximum of 48 kHz/24bit. This is for MFI certified devices, but Apple Music calls high-quality sound sources up to 48 kHz/24bit "lossless" and the quality beyond it (up to 192 kHz/24bit) as "high-resolution lossless" (what Apple calls "high resolution" is not necessarily consistent with the definition of high resolution proposed by the Audio Association of Japan and JEITA). In order to deal with the high-resolution lossless sound source of Apple Music, slightly complex equipment such as USB DAC is needed. On this point, I would like to introduce another paragraph.
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