If support from the maker and seller is this bad or non-existent you don't want this one.
I purchased a new Medion (model #P7332) tablet today. The volume bar can be at max when listening to music on the device itself, but it will not go above approximately the 50% range when I plug electrically powered external speakers into the standard headphone jack of the device. No warnings appear when I attempt this. Is anyone aware of any solutions?