QSC 118 Speaker 18-Inch Passive Subwoofer for Deep Bass Live Sound Reinforcement

QSC 118 Speaker 18-Inch Passive Subwoofer for Deep Bass Live Sound Reinforcement

The QSC 118 Speaker is a professional 18-inch passive subwoofer designed to deliver deep, controlled, and impactful low-frequency reinforcement for live sound systems and fixed installations. It is widely used in concerts, clubs, churches, outdoor events, and touring PA systems where strong bass performance is essential for a complete sound experience.

At the core of the QSC 118 Speaker is a high-excursion 18-inch low-frequency driver housed in a precision-tuned bass reflex enclosure. This design enhances low-frequency extension, allowing the subwoofer to reproduce deep bass with clarity, punch, and definition. The result is powerful sub-bass performance that supports full-range loudspeakers in large and medium-sized sound systems.

The QSC 118 Speaker is designed for use with external power amplifiers and DSP-based active crossovers, giving sound engineers full control over system tuning and performance optimization. Its rugged cabinet construction ensures durability under demanding touring and installation conditions, making it suitable for both portable PA setups and permanent sound installations.

Key Features

• 18-inch passive subwoofer design
• High-excursion low-frequency driver
• Bass reflex enclosure for extended low-end
• Deep, powerful bass reinforcement
• Compatible with external amplifiers
• Requires DSP crossover integration
• Suitable for live sound and installations

18-Inch PA Bass Cabinet