X-SUB 118SA is an 18″ active subwoofer with bass-reflex design, developed as the ideal low-frequency extension for FBT’s X-LITE and X-PRO loudspeaker lines. Equipped with a high-efficiency 18″ woofer and a 3″ voice coil, it delivers up to 136 dB SPL and covers a frequency range of 38 Hz to 120 Hz (-6 dB). The 1200W Class D amplifier ensures powerful and consistent low-end performance.
The onboard DSP processor provides 4 presets, allowing flexible system configuration. The rear panel features stereo XLR/Jack combo inputs and outputs, stereo XLR HP filtered outputs, level control, phase reverse switch (0°/180°), preset selector, and LED indicators for protection and limiting.
Constructed from 18 mm birch plywood with a scratch-resistant black paint finish, the cabinet is equipped with an M20 top mount for satellite poles, two ergonomic aluminum handles, and pre-drilled positions for optional 100 mm wheels. Ideal for fixed installations, live events, and portable PA systems.
Key specifications
- Low Frequency Woofer: 18″ / 3″ VC
- Integrated Amplifier: 1200W, Class D
- Max SPL: 136 dB
- Material: 18 mm birch plywood with scratch-resistant paint