On-wall and in-wall versions employ a true 3-way full-range driver configuration featuring a pivoting Inverted Dual Concentric (IDC®) 4-inch mid-range/1-inch tweeter module and a 6.5-inch C-CAM® bass driver. The innovative IDC module is able to pivot in all directions allowing you direct crucial frequencies for greater detail, imaging and fidelity, while directing sound away from room boundaries. Conventional speakers do not possess this level of control. The drivers feature advancedRST® cone technology, developed by Monitor Audio for our flagship speakers. RST’s surface topology adds rigidity and strength but keeps the cone light and agile for a super-fast life-like response.