Unlikely, me thinks. 240V in the states would be used for high power items that would otherwise draw too much current at 110/120V. This class of item wouldn't fall into that use category, 240V wouldn't necessarily be plumbed in at the environment of use (studio, lounge etc...).
More than likely the choice of transformer is commonly in international use. However the designer might not have sized the device for 50Hz use, even though the provided windings are configurable. And then there's other components. Ratings of capacitors, rectifiers, EMI filters and insulation / creepage distance.
So all that needs checking to be safe. You are right about consulting documentation.