JBL CINEMA 4645C - S/M 4645C SINGLE PORT SUB

The JBL 4645C is a high‑quality professional subwoofer system designed to deliver powerful and deep low‑frequency sound for cinema, theater, and large‑venue audio reinforcement. It features an 18‑inch (460 mm) low‑frequency transducer in a bass‑reflex enclosure, engineered to produce smooth response down into the lowest audible frequencies. This model is built for serious sound applications where enhanced bass is critical.

Key Features

• Designed for low‑frequency augmentation in cinema soundtracks and large sound reinforcement systems

• 460 mm (18") low‑frequency driver with advanced vented cooling for high power handling

• Bass‑reflex enclosure for smooth, extended low‑end performance

• High power handling: capable of 800 W continuous and 1600 W program power

• Extended low frequency response down to around 22 Hz

• High sensitivity for strong output even with modest amplifier power

• Minimal distortion thanks to optimized magnet geometry and driver design