Reliable Rigging Grid for CDL12P Series Speaker Array Simply put: if you're building a speaker array with PreSonus CDL12P Series speakers, you'll need this rigging grid. This rugged, lightweight metal grid is custom made for CDL series speakers, so it supplies you with solid, reliable array setup. The CDL12P Rigging Grid is a trusted piece of hardware here at Sweetwater, along with the many other quality products from PreSonus.PreSonus CDL12P Rigging Grid for CDL12P Series Features: Rugged, lightweight metal grid for building an array with CDL12P series speakers Custom made for CDL12P series speakers