I just got my AK100 back from repairs (sent it to A&K in US for in warranty repair). Getting the exact same bluetooth buzzing issue for which I sent it in. I don't think I will do business with A&K for a while.
Link to email thread.
Link to the beeping/buzzing audio sample, as heard from my SE846 connected to AK100 paired with any bluetooth device, including A&K official BT remote.
I'm not impressed.
Before you suggest further troubleshooting, please see the extensive troubleshooting list I sent to A&K:
Edited by Scorpion667 - 1/20/15 at 11:00pm