The Mackie 2042160 Install Rack Kit allows a DL32R mixer to be mounted in a standard ISP 19 inch rack in a variety of ways. The alternate recessed front rack ears allow connections to be made in a rack with a closing front door. The rear rack ears can be used with either front ear configuration, and, when added, provides extra stability for installs and touring systems.
These allow the DL32R to be mounted in racks with rear rack rails between 19.5 inches - 24.75 inches (using recessed front rack ears) or 16 inches - 21.125 inches (using the standard front rack ears) from the front rails measuring from ounting surface to mounting surface.