FBT X-SUB 118SA | 18in - 136dB Powered Subwoofer | 1200W Class D with DSP Presets

FBT USA XSUB 118SA  (FBT X SUB 118SA)

Powered Subwoofer

The FBT X-SUB 118SA is a compact yet powerful 18" bass reflex subwoofer designed for both mobile and fixed sound reinforcement systems. Delivering up to 136dB SPL, this sub offers tight, punchy low-end response down to 38Hz, making it the perfect companion for FBT X-PRO and X-LITE full-range speakers. Its robust birch plywood cabinet, built-in DSP, and M20 pole mount make it a versatile and road-ready solution for DJs, bands, and AV professionals.

FBT X-SUB 118SA Competitive Differences

• 136dB max SPL from a high-excursion 18" woofer
• 4 DSP presets with stereo I/O and hi-pass outputs

FBT X-SUB 118SA Description

The FBT X-SUB 118SA is engineered for powerful low-frequency reinforcement in professional sound systems. Its 18" high-excursion woofer, paired with a 3" voice coil, is driven by a 1200W Class D amplifier with an integrated universal switching power supply for worldwide voltage compatibility. The result is deep, controlled bass performance ideal for a wide range of live and installed applications. Onboard DSP provides four user-selectable presets, allowing you to tailor the sub’s response to different environments or speaker pairings. The stereo XLR input and output configuration includes hi-pass outputs for satellite tops, and a 0°/180° phase switch ensures optimal alignment with other system components. Built into a rugged 18mm birch plywood enclosure with a scratch-resistant coating, the X-SUB 118SA is designed to withstand the rigors of touring while maintaining sleek aesthetics for permanent installs. Dual aluminum side handles, optional 100mm wheels, and an integrated M20 pole mount add to the system’s flexibility and ease of use.

Model Features

• 1200W Class D amplifier with universal power supply
• 18" woofer with 3" voice coil for deep, tight bass
• DSP with 4 user-selectable presets and two crossover options
• Stereo XLR inputs and outputs with hi-pass filtering
• Scratch-resistant birch plywood cabinet with M20 pole mount

Model Specifications

• Max SPL: 136dB
• Power Output: 1200W
• Frequency Response: 38Hz – 120Hz
• Dimensions: 25.8 x 20.1 x 24.8 in (655 x 510 x 630 mm)
• Weight: 74.95 lb (34 kg)
• UPC: Not specified

What's In The Box

• Main unit
• Power cable
• Quick start guide