Astell & Kern Junior (AK Jr.) Impressions Thread
May 28, 2015 at 11:19 PM Post #331 of 3,298

Photoman

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What do you mean by deep sleep?  The sleep function will shut the unit down completely after so many minutes, so it is not like hibernate for a computer.  Also, the manual said that the battery from the Jr. is a 1450mAh 3.7V Li-Polymer Battery.
It looks like it may make it to 12+ hours. What is the longest time for screen display? And does the player support m3u playlist?
 
May 28, 2015 at 11:30 PM Post #332 of 3,298

iemme

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We've tried the AK Jr as a USB DAC on a Macbook, Macbook Pro (via powered USB), Mac Mini with no problem - sounds great. But when we try a Macbook Air it shows up as an output option but no sound. Anyone think this is a case of the USB port not being able to power it?
 
Any thoughts?
 
Update: Actually - doesn't look like it's using much at all.
 

 
May 28, 2015 at 11:37 PM Post #333 of 3,298

DrSheep

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It looks like it may make it to 12+ hours. What is the longest time for screen display? And does the player support m3u playlist?

Settings:
Auto Power Off: Off, 10 mins, 30 mins, 1 hr, and 2 hrs.
Auto Back Light Off: 10 sec, 30 sec, 1 min, 3 mins, 5 mins, 10 mins, and 30 mins.
Sleep Timer: Off, 10 mins, 30 mins, 1 hr, 2 hrs, 3, hrs, 4 hrs, and 5 hrs.
 
Also I can test m3u later but I will have to let the battery test to finish.  However, there is an easy way to create m3u from the command prompt:
 
https://support.microsoft.com/en-us/kb/249234
 
Also, I just noticed that the battery now is at 1/4, so the last leg may go by faster.
 
May 28, 2015 at 11:49 PM Post #334 of 3,298

DrSheep

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  We've tried the AK Jr as a USB DAC on a Macbook, Macbook Pro (via powered USB), Mac Mini with no problem - sounds great. But when we try a Macbook Air it shows up as an output option but no sound. Anyone think this is a case of the USB port not being able to power it?
 
Any thoughts?
 
Update: Actually - doesn't look like it's using much at all.
 

Don't know but entirely possible.
 
May 28, 2015 at 11:58 PM Post #335 of 3,298

Photoman

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Settings:
Auto Power Off: Off, 10 mins, 30 mins, 1 hr, and 2 hrs.
Auto Back Light Off: 10 sec, 30 sec, 1 min, 3 mins, 5 mins, 10 mins, and 30 mins.
Sleep Timer: Off, 10 mins, 30 mins, 1 hr, 2 hrs, 3, hrs, 4 hrs, and 5 hrs.

Also I can test m3u later but I will have to let the battery test to finish.  However, there is an easy way to create m3u from the command prompt:

https://support.microsoft.com/en-us/kb/249234

Also, I just noticed that the battery now is at 1/4, so the last leg may go by faster.
thanks. I used foobar for creating a playlist. It might be 10 hrs now lol
 
May 29, 2015 at 4:57 AM Post #336 of 3,298

walkman666

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Ok general use case for battery test.

Settings:
Volume 35 (half of max of 70).
Display brightness 50%.
Auto power off 10 mins.
Auto back light off 10 sec.
Sleep off.
Bluetooth off.
Songs random play and gapless from playlist of 320k MP3s and 16/44 to 24/192 FLACs.

Timeline:
04:39pm: Test start.
08:15pm: About 1/5 down.
11:05pm: 1/2 down.
11:45pm: 3/4 down.
01:01am: Auto shutdown.

Total run time: 8 hrs 22 mins.


8 hours. Cool.,seems pretty good. Excellent test. Thank you.
 
May 29, 2015 at 2:06 PM Post #342 of 3,298

Richsvt

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Anyone see a case for the Jr?
I saw the ones on the A&K site and they look nice but they are not out yet. Thought maybe Dignis would have some...still too early i guess...
 
May 29, 2015 at 6:56 PM Post #343 of 3,298

classicradios

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My AK Jr just arrived this afternoon.  Just wanted to post a quick couple of observations:
The SanDisk 128GB card from my Fiio X1 was scanned by the AK Jr perfectly and seems to be working great.  The Bluetooth feature paired with my iPhone 6 without issue and now interrupts the music when I get a call..A huge plus for me and worth the price for that alone.  Charging now and listening this weekend.  More later.
 
May 30, 2015 at 8:06 AM Post #345 of 3,298

YoengJyh

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Anyone can compare this AK Jr to Sony ZX2?
 

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