The Mackie <strong>2042160</strong> 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. </p><p>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.</p>