Raymarine B75M (A80036) is a 600W single-channel Medium-band CHIRP bronze thru-hull transducer featuring a fixed internal 20° tilted ceramic element. Engineered specifically for steep deadrise hulls (16° to 24°), the internal tilt compensates for aggressive hull angles to project the acoustic beam vertically downward without requiring an external fairing block. The low-profile bronze housing sits nearly flush against the hull, minimizing drag and water turbulence at planing speeds. Operating across Medium CHIRP frequencies (80 kHz to 130 kHz) with a 24° to 16° beam width, the B75M delivers an optimal balance of depth penetration down to 900 ft and wide beam coverage for fish targeting in shallow to mid-water depths.