Huawei's "Mate 10 Pro" is unusual for Android, which is equipped with 128GB storage and does not support MicroSD cards, but the other is also a feature that it omits 3.5mm earphone jacks, like the iPhone., We are forced to change the audio environment.
Instead, the Mate 10 Pro can use the highest sound quality codec at the moment, such as supporting APTX in addition to APTX in BluetX.Of course, if you want to pursue the highest sound quality, there is a method of digital output with a USB OTG cable and input to an external portable DAC, but here you somehow leave the convenience of the wireless environment by Bluetooth.It seems to be a distribution environment.
This time I purchased the AT-PHA55BT wireless headphone amplifier released by audio technica in November 2017.The price is about 16,000 yen including tax.A small headphone amplifier connected by Bluetooth, connecting a general 3.5mm plug earphone or headphone.In addition to the standard SBC in Bluetooth connection, it supports AAC (iPhone), APTX, and LDAC.It is a content that makes use of the performance of the Bluetooth of Mate 10 Pro.
「AT-PHA55BT」と有線イヤホンの「ATH-CKR90」Bluetooth -compatible products, such as products that are integrated with the cable part of the earphone, a neck band type product, and Bluetooth headphones, are now in the era of hundred flowers.There is a idea that you do not need to choose an adapter type product, but if you narrow down with LDAC and add your favorite shape and color, the options will be much less."AT-PHA55BT", which can use the 3.5mm plug earphones and support LDAC, can be said to be a good product that pierced a gap.
The connection by LDAC of "AT-PHA55BT" can be selected on the smartphone side: "Optimization of sound quality" and "settings that emphasize sound quality and connection quality", and select "Optimization of sound quality".If so, it can be connected at 990kbps (96kHz/24bit), which is the highest specification of LDAC.
However, if you connect with "sound quality -oriented", even if both sides are placed nearby, the noise may not be able to play properly with frequent rides.In such a case, if you reconnect with the power supply of the device or the Bluetooth on / off, the connection will not be rated.In the case of commuting by subway, if you can connect well with "sound quality -oriented", you may get noise when entering a station with a large number of passengers, but it was acceptable in total.If the environment changes every moment, it seems good to turn off your smartphone Wi-Fi.If you cannot allow one noise contamination, if you select "balance -oriented" (probably connected at 660 kbps) in the LDAC setting, it will be connected almost no noise even if the surrounding environment changes.
In this area, Bluetooth is a bit severe because it is a standard that uses the 2.4GHz band, which tends to be crowded, and a high bit rate connection.It will also depend on the antenna performance of both devices.
Also, this is also written in the manual, but depending on the combination with the device, it may not be possible to operate the songs, playing, pause, and rewrites on the button on the "AT-PHA55BT" body (().Volume operation is possible).The combination with the Mate 10 Pro has a considerable probability, and these three operations cannot be performed.However, the operation of the song is on the smartphone side, so it is not a big problem ...
In addition, "AT-PHA55BT" has a unique mode for dynamic drivers (A mode) and balanced armature driver (B mode).It is used in combination with the earphone "ATH-CKR90" equipped with an audio technica dynamic driver, and as a result of comparing the listening, it uses A mode for dynamic drivers as recommended.
The connection between the Mate 10 Pro and the "AT-PHA55BT" is unstable that there is a case where it may be tried to make a connection without noise, and if you can connect well, you can enjoy music with quite high sound quality.If you already have your favorite earphones or headphones, wouldn't it be recommended to be able to use it?
