As they say on the official manual:
[quote]If you experience problems while using this product, try the following solutions. If you still cannot solve the problem, seek online help at www.Bose.com/livesound. If you cannot find answers to your questions there, please call the Bose Product and Technical Support Team directly at (877) 335-2673.[/quote]
Also I’d try check if you have the latest firmware - quite a few really weird issues with Bose speakers can be solved surprisingly easily with an update - [link|https://assets.bose.com/content/dam/Bose_DAM/Web/pro/global/products/portable_PA/S1_Pro/Downloads/827507_FW_s1_pro_system_EN_00_viewable.pdf|check here for more info|new_window=true]