gr8soundz
Headphoneus Supremus
- Joined
- Jun 28, 2014
- Posts
- 2,853
- Likes
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AK XB10
http://www.astellnkern.com/eng/htm/accessory/XB10.asp
There are a few bluetooth adapters like this already on the market (like Noble's BTS) that allow use of wired headphones with a bluetooth connection but a few things about the XB10 stand out:
1. Apt-X HD (24-bit/48Khz and, unlike regular bluetooth and non-HD apt-x, no downsampling to 16/44 before wireless transmission). Still not lossless and the wireless stream is still compressed but apt-x HD has almost double the data rate of standard bluetooth. Should be interesting to hear this with some apt-x HD headphones (once they become available).
2. Balanced 2.5mm out (as well as 3.5mm unbalanced)
3. Towards the end of the video below, they connect an HD800S (to the 2.5mm balanced out) and the audio coming from them is so loud they turned down the volume on the XB10. Specs show up to 1.8V rms from the balanced out so there is a little power here which explains the short 5hr max battery life.
Specification
General Specifications
Audio
Battery
http://www.astellnkern.com/eng/htm/accessory/XB10.asp
There are a few bluetooth adapters like this already on the market (like Noble's BTS) that allow use of wired headphones with a bluetooth connection but a few things about the XB10 stand out:
1. Apt-X HD (24-bit/48Khz and, unlike regular bluetooth and non-HD apt-x, no downsampling to 16/44 before wireless transmission). Still not lossless and the wireless stream is still compressed but apt-x HD has almost double the data rate of standard bluetooth. Should be interesting to hear this with some apt-x HD headphones (once they become available).
2. Balanced 2.5mm out (as well as 3.5mm unbalanced)
3. Towards the end of the video below, they connect an HD800S (to the 2.5mm balanced out) and the audio coming from them is so loud they turned down the volume on the XB10. Specs show up to 1.8V rms from the balanced out so there is a little power here which explains the short 5hr max battery life.
Specification
General Specifications
- Model
- Body Color
- Dimensions
- Weight
- Bluetooth Version
- Bluetooth Profile
- Frequency Band
- Range
- Operating Temperature
- AK XB10
- Black
- 1.97 ”(50 mm) [W] x 1.97 ”(50 mm) [H] x 0.48 ”(12.3 mm) [D]
- 0.81 oz (23 g)
- Bluetooth 4.1, Class2
- A2DP (multi), AVRCP, HFP, HSP
- 2.4 - 2.4835 GHz ISM Band
- Maximum of 10 meters
- -10°C ~ 45°C (23°F ~ 113°F)
Audio
- Codec
- Port
- Output Level
- SBC, AAC, aptX™, aptX™ HD
- 2.5mm Balanced / 3.5mm Unbalanced
- 2.5mm Balanced : 1.8Vrms / 3.5mm Unbalanced : 0.9Vrms
Battery
- Battery Type
- Hours of Operation
- Standby Time
- Charging Time
- Charging Method
- 350mAh 3.7V lithium polymer rechargeable battery
- Approximately 5 hours for music playing and phone calls
- Up to 300 hours
- Approximately 2 hours
- Micro USB 5Pin (charging 5V 2A)