Heat sink structure for audio equipment

A heat sink structure that is used for audio equipment, the heat sink structure comprising:

• a base;
• and
• a plurality of heat dissipation fins that extend from a predetermined surface of the base in a first direction orthogonal to the predetermined surface, the heat dissipation fins being arranged side by side in a second direction orthogonal to the first direction, wherein in a cross-section in a plane parallel to the first and second directions, each of the heat dissipation fins has (i) a first side surface and a second side surface, the first and second side surfaces facing oppositely from each other in the second direction, (ii) a first side surface inclination angle θL which is an angle between the first side surface and the predetermined surface and (iii) a second side surface inclination angle θR which is an angle between the second side surface and the predetermined surface, and
• for each of the heat dissipation fins, (1) a value of θL is different from the value of θL of an adjacent one of the heat dissipation fins, and (2) a value of θR is different from the value of θR of the adjacent one of the heat dissipation fins.