Seamlessly joining sides of a speaker enclosure

A method for joining sides of a speaker enclosure while minimizing the appearance of a seam between the joined sides, the method including:

• affixing a speaker grill element to a substructure element;
• where the speaker grill element has a depth dimension that is shorter than its length and width dimensions, comprises a first surface and a second surface that are substantially parallel to each other, and comprises hole openings between the first surface and the second surface;
• where the substructure element has a depth dimension that is shorter than its length and width dimensions, comprises an undercut facing the direction in which the speaker grill element affixes, comprises protrusions above its front surface, and comprises openings that are larger than the hole openings in the speaker grill element;
• and
• where the speaker grill element is aligned lengthwise to a first plane;
• inserting the joined speaker grill element and substructure element into a mould, where, in combination with portions of the speaker grill element and the substructure element including the undercut, a surface of the mould forms a mould cavity for injection moulding a side element;
• and
• injecting molten plastic into the mould cavity that bonds to surfaces of the speaker grill element and undercut of the substructure element to form an injection moulded side element that interlocks with the undercut of the substructure element.