I recently e-mailed Denon about whether it was possible to remove the 4mm bungs in the 3802's speaker terminals, and this was their response: Unfortunately we cannot advise the removal of the 4mm blanking plates placed in the speaker terminals as these are required for the unit to gain CE approval. This is because a 4mm socket is the same size as a European mains pin! This would suggest that it is possible, but that they must be seen to provide the official answer to comply with European regulations. Does anyone know if it is possible? I have tried but did not want to force the bungs too much.