The FBT X-Sub 118 SA from DJDeals.com is a 1200W RMS active 18-inch bass-reflex subwoofer rated at 136dB half-space SPL with a 38Hz–120Hz frequency response and 4 DSP presets. Sharing the same electronics and control panel as the X-Sub 115SA but with an 18-inch driver and larger 15mm birch plywood cabinet, the X-Sub 118SA extends sub-bass response to 38Hz for maximum low-frequency impact at large outdoor events and high-SPL dance music productions.
FBT X-Sub 118 SA Active Subwoofer Features:
- 1200W RMS Class D Active Amplifier, Same Electronics as X-Sub 115SA. The 1200W RMS Class D amplifier and 600W AC power draw are identical to the X-Sub 115SA, meaning the same efficiency and power supply architecture drives a larger 18-inch driver for improved low-frequency output at the same amplifier power cost.
- 18-Inch Woofer with 3-Inch Voice Coil, 136dB Half-Space SPL. The large-format 18-inch high-excursion woofer with 3-inch voice coil reaches 136dB maximum SPL half-space — 1dB more than the X-Sub 115SA — providing the headroom and physical cone area required for outdoor festival sub-bass at distances exceeding 50 meters from the speaker position.
- 38Hz–120Hz Frequency Response. The 4Hz deeper low-end extension versus the X-Sub 115SA (38Hz vs. 42Hz) is audible and physically felt at high SPL levels in electronic music where synthesized sub-bass extends below 40Hz; the 120Hz upper limit is identical to the 115SA, maintaining compatibility with the same crossover and HP filter output settings.
- 4 DSP Presets with Stereo HP Filter Outputs. Four presets provide optimized response curves for different crossover configurations; dual stereo XLR HP filter outputs send the band-limited signal to two satellite speaker channels, enabling a complete stereo active PA system from a single X-Sub 118SA without additional signal processing.
- Stereo Combo XLR/Jack Inputs with Loop-Through. Stereo combo inputs with XLR loop-through allow multiple X-Sub 118SA units to be daisy-chained in large multi-sub arrays typical of festival stages and outdoor dance music events, with signal distributed without Y-cables or passive signal splitters.
- M20 Top-Mount Stand Adapter. The M20 standard thread top-mount accepts speaker poles for direct satellite speaker stacking; at 39.8kg, the X-Sub 118SA is near the practical limit for pole-stacking large-format satellite speakers — truss or ground-stacked side-fill configurations are more common in larger deployments.
- 0°/180° Phase Reverse and Protection/Limit LEDs. The rear control panel phase switch is critical for aligning multiple X-Sub 118SA units in cardioid subwoofer configurations; the protection and limit LEDs provide real-time amp status monitoring during high-SPL performances.
- 15mm Birch Plywood Cabinet with Aluminum Handles. The birch plywood enclosure is sized appropriately for the 18-inch driver’s internal volume requirements; two aluminum ergonomic handles assist two-person transport of the 39.8kg cabinet; optional KW-X wheel kit (code 38899) adds 100mm transport wheels for stage positioning.
- Product Code 44146. Net dimensions are 510×655×630mm at 39.8kg; transport dimensions are 785×815×685mm at 47.5kg; designed as the high-output subwoofer companion for complete X-Lite 110A, 112A, or 115A active PA systems at medium-to-large outdoor events where the X-Sub 115SA’s output is insufficient.
FBT X-Sub 118 SA Active Subwoofer Specifications:
- Configuration: Bass-reflex, active
- LF Driver: 18-inch woofer, 3-inch voice coil
- Amplifier: 1200W RMS (Class D)
- AC Power Requirement: 600W
- Frequency Response: 38Hz–120Hz (–6dB)
- Maximum SPL (half-space): 136dB
- DSP Presets: 4
- Input Impedance: 22kΩ
- Input Connectors: Stereo combo XLR/Jack (with loop-through)
- HP Filter Outputs: Stereo XLR
- Phase: 0°/180° switchable
- Power Cord: 5m / 16.4 ft
- Stand Adapter: M20 top-mount
- Cabinet: 15mm birch plywood
- Net Dimensions (W×H×D): 510×655×630mm / 20×25.7×24.8 in
- Net Weight: 39.8kg / 87.7 lb
- Transport Dimensions: 785×815×685mm
- Transport Weight: 47.5kg / 104.7 lb
- Product Code: 44146