High-quality Bluetooth, AK XB10: We added high sound quality to the wireless freedom!

The AK XB10 uses aptX™ HD technology, the latest Bluetooth codec from Qualcomm. 24-bit HD audio that was simply not possible with previous Bluetooth technologies can now be fully enjoyed with aptX™ HD. Along with DAC, amp, and essential components of fine audio, the AK XB10 delivers a distinctive difference in sound from conventional Bluetooth products.

Qualcomm® aptX™ HD
Capable of transmitting up to 24-bit/48 kHz audio that is faithful to the original audio file.
Perfect Sound
Equipped with a Hi-Fi DAC capable of reproducing high-quality sound up to 24-bit/192 kHz
Dual Audio Output
Equipped with both 3.5mm unbalanced & 2.5mm balanced audio outputs
iOS & Android Compatible
Compatible with all iOS, Android, and many other Bluetooth devices
Handsfree Function
Supports voice calls and features a built-in microphone: receive calls when using earphones without a microphone
Design Concept
Inspired by Astell&Kern's principal design motif of light and shadow.

General
Model : AK XB10
Body Color : Black
Dimensions : 50 mm [W] x 50 mm [H] x 12.3 mm [D]
Weight : 23 g
Bluetooth Version : Bluetooth 4.1, Class2
Bluetooth Profile : A2DP (multi), AVRCP, HFP, HSP
Frequency Band : 2.4 - 2.4835 GHz ISM Band
Range : Maximum of 10 meters
Operating Temperature : -10°C ~ 45°C

Audio
Codec : SBC, AAC, aptX™, aptX™ HD
Port : 2.5mm Balanced / 3.5mm Unbalanced
Output Level : 2.5mm Balanced : 1.8Vrms / 3.5mm Unbalanced : 0.9Vrms

Battery
Battery Type : 350mAh 3.7V lithium polymer rechargeable battery
Hours of Operation : Approximately 5 hours for music playing and phone calls
Standby Time : Up to 300 hours
Charging Time : Approximately 2 hours
Charging Method : Micro USB 5Pin (charging 5V 2A)

Prix US : 149$ (site A&K)
Prix FR : 179€ (S-V et cobra)

The Android O Developer Preview was just made available this morning, and there are a ton of new features to dig through. From better battery life to adaptive icons, Google is stocking its newest version with new settings and features that will have enthusiasts incredibly excited. And while some hardware manufacturers are beginning to remove the headphone jack from their devices to make space for… courage, the newest edition of Android is giving devices even better Bluetooth audio with support for advanced codecs like LDAC, and the AAudio API.

If you weren’t aware, LDAC is a codec created by Sony which can transfer up to 990kbps of data compared to the 328kbps cap of the much more common SBC codec. The codec also has a frequency of 44.1 kHz, which is the same frequency as playing directly from a CD, a huge step forward for Bluetooth audio. Previously, the codec was only available on specified Sony products such as Xperia and Walkman devices, but the codec being baked into Android itself means you should be able to play back these high-res files on any compatible Bluetooth headphones, though manufacturers will likely need to pay a hefty licensing fee to play it back.

Two other options being supported are Qualcomm’s aptX and aptX-HD, high quality streaming protocols which offer much higher bitrates than more common options already on the market. While Google doesn’t directly reference these protocols in the update notes, we did find them hidden within Android O’s developer settings. aptX-HD enables 24-bit music quality over Bluetooth, and can even be used to enhance audio performance when applied to standard resolution content. The HD protocol is also backwards compatible with existing aptX products, so you should be able to bump your music quality with the flip of a switch.

Sylean a écrit : Aka c'est un Pb matériel et non logiciel, si ?

davidmolliere a écrit :Intéressant cette petite bête... signature en V par contre :-\