Model: TDA7293/TDA7294
Power supply: double AC 15V to 36V (AC needs rectification and filtering) or DC positive and negative
18V to 50V.Recommended double 35V (Note that it is not a dual 35V transformer, it is positive and
negative 35V DC. And It is recommended to double 26V/200W toroidal transformer, after rectification
voltage is about DC double 35V).