FBT X-Sub 118SA 18" Powered Subwoofer

The FBT X-SUB 118SA is an 18" powered subwoofer built to complement the X-PRO and X-LITE active speaker ranges. With a peak half-space SPL of 136 dB and a frequency response extending to 38 Hz, it delivers the deep, tight bass foundation that live sound demands — from club nights to outdoor festivals.

• 1200W Class D amplification — efficient, high-headroom bass power
• 18" woofer, 3" voice coil — authoritative low-frequency output
• 38 Hz – 120 Hz frequency response — deep extension for music and effects
• 136 dB peak SPL (half-space) — capable of filling large open-air venues
• 4 DSP presets — two frequency responses, each with two crossover options
• Phase reverse switch (0° / 180°) — precise integration with top cabinets
• Stereo XLR/Jack inputs and high-pass outputs — clean signal routing to full-range tops
• M20 top-mounted pole adapter — stack a full-range speaker directly on top
• 15 mm birch plywood construction — built for the rigours of live touring

Compatible accessories: XS-C 118S (nylon cover), XS-CH 118S (nylon cover with wheels), KW-X SUB (wheel kit).