FBT X-SUB 118SA – 18″ Powered Subwoofer

FBT X-SUB 118SA – 18″ Powered Subwoofer

The FBT X-SUB 118SA is a high-performance active subwoofer designed for professional audio reinforcement. Featuring an 18-inch driver with a 3-inch voice coil in a bass-reflex enclosure, it delivers powerful, deep low-end response to complement mid/high loudspeaker systems in live and installed sound environments.

With its rugged birch plywood construction, advanced DSP presets, and user-friendly controls, the X-SUB 118SA offers reliability, flexibility, and exceptional output for demanding applications.

Key Features

• Active bass-reflex subwoofer with 18″ driver and 3″ voice coil
• 1200 W RMS Class D amplifier for consistent high-power performance
• Frequency response: 38 Hz – 120 Hz (-6 dB)
• Maximum SPL: up to 136 dB (half space)
• Four DSP presets with selectable crossover points
• Phase switch (0° / 180°) for flexible system alignment
• Stereo combo XLR/jack inputs and link outputs with high-pass filter outputs
• Durable birch plywood cabinet with scratch-resistant black finish
• M20 top-mounted pole socket, ergonomic handles, and optional transport wheels
• LED indicators for limiter/protection and power status

Specifications

Why Choose the FBT X-SUB 118SA?

The FBT X-SUB 118SA combines deep, controlled bass with powerful amplification and rugged build quality, making it ideal for live events, DJ setups, theaters, and fixed installations. Its DSP flexibility, compact footprint, and reliable Italian engineering ensure long-term performance in any professional audio setup.

Powerful Low-End Reinforcement

From small venues to larger sound systems, the FBT X-SUB 118SA provides the low-frequency punch and clarity needed to bring music and speech to life with authority.

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