TheBosch LB20 PC40-4D/L is a compact, high-performance surface-mount loudspeaker designed for reliable indoor and outdoor installations. Featuring an innovative mounting system, it ensures quick, simple, and secure setup for commercial environments such as retail spaces, restaurants, hospitality venues, and outdoor areas.

Engineered for outdoor durability with an IP54 rating, this speaker maintains excellent performance even in challenging conditions. It houses a long-throw 4-inch (102 mm) woofer within a fire-rated ABS enclosure, delivering extended low-frequency response down to 75 Hz. With 40W power handling, it achieves up to 103 dB maximum SPL (109 dB peak), providing clear and impactful sound.

A 70/100V transformer version (LB20-PC15-4) is also available for constant voltage systems, offering flexible integration into distributed audio setups.