Answer from JBL Service:
Thank you for writing to the Harman Helpdesk.
We have heard similar reports by some other clients and we can tell you that our research and development team is working on the Lößung this inconvenience that a software update will be most likely.
Unfortunately, we have not received information about when the software update is published, because has begun to work on this problem until recently the Lößung ago.
Nevertheless, when a software update is available, you can find it on the product support page of the JBL Horizon on this link:
http://de.jbl.com/jbl-product-support-detail-de/jbl-horizon-black.html
For further questions we are at your disposal.