Difusi today announced the addition of new speaker grilles built specifically for the Pro Speakers that come with Apple’s iMac. The grilles are available in chrome or clear finishes, and are designed as an aesthetic enhancement and to provide protection for the speakers. The new designs are available now for pre-order, and expected to ship November 25 for US$12.95. Difusi also said that it will be releasing additional grille sets for the eMac and the latest Power Mac G4 in the coming months.