Thanks for the suggestion, but it is really the speakers I need, for my motorhome. I use a simple bluetooth dongle on the old system, and that works fine, sounds great. The house system is a Devialet with Ambience speakers and that also sounds fine with a simple bluetooth dongle. The LSX's need tweaking to sound good in the motorhome but I can't access their controls because of the lousy app. Frustrating - especially as no-one wants to buy them, despite retail price now being close to two grand. Ebay next!