FBT X-SUB 118SA Active Subwoofer

FBT X-SUB 118SA Active Subwoofer

The FBT X-SUB 118SA is an active 18-inch bass-reflex subwoofer.

A Class D amplifier rated at 1200 W MAX drives its 18-inch woofer with a 3-inch voice coil. FBT specifies a 38–120 Hz frequency response (-6 dB) and 136 dB maximum SPL in half-space.

Four DSP presets combine two response curves with two low-pass settings. The rear panel offers level and preset controls, 0°/180° phase reversal and separate high-pass-filtered XLR outputs for the main loudspeakers.

The 18 mm birch plywood cabinet has two aluminium handles and an M20 pole socket. Mounting points accept optional 100 mm wheels. FBT positions this subwoofer for use with X-LITE and X-PRO loudspeakers.

Main Features

• The 18-inch woofer with a 3-inch voice coil reproduces the low-frequency range.
• The built-in 1200 W MAX Class D amplifier removes the need for an external power amp.
• Four DSP presets combine response and low-pass filter choices.
• The 0°/180° phase switch supports alignment with the main loudspeakers.
• Stereo XLR/Jack inputs and link outputs support system connections.
• Separate stereo high-pass XLR outputs feed the main loudspeakers a filtered signal.
• The M20 top socket accepts a suitable speaker pole.
• Aluminium handles assist with moving the plywood cabinet.
• Optional 100 mm wheels can be fitted for transport.

Technical Specifications

• Manufacturer code: 44146
• System: active bass-reflex subwoofer
• LF woofer: 18 in, 3 in voice coil
• MAX amplifier power: 1200 W, Class D
• Frequency response: 38–120 Hz (-6 dB)
• Maximum SPL: 136 dB, half-space
• Dispersion: omnidirectional
• DSP: 4 presets
• Connections: stereo XLR/Jack inputs and link outputs; stereo high-pass XLR outputs
• Input impedance: 22 kΩ
• Controls: level, DSP presets, 0°/180° phase switch
• AC power requirement: 600 W
• Power cord length: 5 m
• Cabinet: 18 mm birch plywood
• Dimensions (W × H × D): 510 × 655 × 630 mm
• Product net weight: 39.8 kg

What’s Included

• 1 × FBT X-SUB 118SA active subwoofer

Who Is It For

For live sound, DJ events and fixed systems that need dedicated low-frequency support for the main loudspeakers.

Can’t find the FBT product you are looking for?

Contact us: info@stageiq.lt or +370 636 55536.