1. Rack Ears - Prior to installing the amplifier into a 19" rack, you will need to attach therack ears. Remove and save the 6 front-most cover screws on each side panel of theamplifier. Position the rack ears as shown and attach using the 6 screws.2. Dust Filter - Insert the dust filter into the fan grille before attaching the fan grille to theamplifier.Filter MaintenanceDust filters are provided to reduce the build up of dust on the heat sinks. Periodiccleaning should be done when there is a noticeable build up of dust on the filters. Toclean the filters, remove them from the grilles and wash, vacuum, or tap them out.Promptly replace them.Caution: The fan blades are accessible when the grille cover and filter are removed.Be careful not to place your finger or other objects into the fan .3. Fan Grille - To attach the fan grilles: first, slide the tabs on the wider end of the grille(A) in to the notches in the front, center casting of the amplifier. Snap the other end ofthe grille (B) in to the snap slots. Check that the grille is securely in place. To remove,pry the end of the cover closest to the rack ears up until the snap tabs disengage.4InstallationMechanical Components