A class AB amplifier circuit includes a complementary output stage and a biasing circuit for biasing the output stage. Regarding correction pixels not positionally corresponding to the aberration measurement points, the aberration correction unit is driven based on phase information in the vicinity of this correction pixel. The nutritious snacks of the present invention are traditional in form, provide a balanced mix of an amino acid source, fat, and carbohydrates and typically have an appeal similar to that of unhealthy snacks of similar form. The encrypted data path extends between an optical transmitter and an optical receiver. The seals seal each end of the assembly.