Clearsonic A2448X3 72" Wide x 48" High 3-section CSP72 inch wide x 48 inch high, 3 section CSP (old A4 3) 48 inch high A2448 CSP are commonly used on drum kits that have lower cymbals or when communication between musicians out weighs higher coverage. The A2448x3 is commonly used an add on to increase the width of an existing A2448 system by 72 inches or as a small stand alone system.