Can you do me a favor and do these steps.
1) Restart your phone.
2) Check BBS set from "boot" and you should not have any audioout_2.
3) Go watch a MV or something using a media player maybe 5 mins with the screen always on of cos.
4) Check BBS and see if you got audioout_2 now.

Don't let the phone screen go off from the time of boot until the end of the experiment.

Dont need full batt to test. Just test at any batt level. Then use youtube and test.

Wait you miss the point of my simple test. 
Question 1: What is a wakelock?
XDA Wiki: Wakelocks statistics are good indicators if the battery drain is high when the phone is off and supposed to sleep.

But... but ...but your device screen was not off nor was it suppose to sleep as you are watching youtube.

Conclusion:
Since android 4.1.2 please just IGNORE audioout_2 wakelock reported in BBS because its NOT AN ACTUAL WAKELOCK.

Anything with media sound eg video watching, playing games, youtube, mp3 listening will contribute to audioout_2. Unless you tell me you watch video or play games with the screen off then i will admit something else is wrong.

Just enjoy your device...

Being able to achieve 7 hours of screen time is something worth mentioning.

I wish I could achieve it on CM10.1

SwarmTroll were you on WiFi for the full duration of usage?

Spotify

PPS

A few pages or days back there was a list of "forbidden fruit" apps. Not pirate but not on the Play Store.

looks like there's hope for aosp lol. what rom are you on?

Hi all, sorry if this is a silly question. This morning I try to flash devil kernal to my phone but after flash, I can't find any icon/app to configure the kernal. Does kernal normally provide app that we can tweak / configure the kernal.