FBT X-Sub 118SA
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- This item is covered for 3 years
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Information
Information
Manufacturer Information
FBT
https://www.fbt.it
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MSC Distribution
Email: infos@msc-distribution.com
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An active subwoofer designed as a solid foundation for an FBT system
The FBT X-Sub 118SA fits into the concept of a versatile active subwoofer: a "plug and play" solution capable of serving as the foundation for a satellites + sub system, both in simple configuration and stereo setup. Its size and features (DSP, filtering, dedicated outputs) make it a relevant choice to build a coherent system, easy to deploy and adjust on site.
Intended uses and target profiles
This subwoofer is designed for mobile sound reinforcement and light installation needs: DJs, bands, service providers, multipurpose rooms, corporate events, or communities seeking present bass without complicating setup. With a frequency response rated at 38Hz / 120Hz (at -6 dB) and a maximum SPL of 136dB, it is particularly suitable for providing a solid foundation to amplified music (electro, pop, rock, hip-hop) and enhancing the dynamics of kick drums and bass lines.
Its omnidirectional directivity is typical of subwoofers: the key is to integrate it properly with the rest of the system. For this, the X-Sub 118SA offers simple and effective adjustments to achieve firm bass without "holes" or swelling around the crossover frequency.
Technical specifications
| Bluetooth | No | ||
Questions frequently asked
FBT X-Sub 118SA: what power and sound level does it offer?
The Class D digital amplification delivers 1200 W. The maximum announced sound pressure level reaches 136 dB.
Can two satellite speakers be connected to this subwoofer?
The two filtered speaker XLR outputs allow powering two satellite speakers with a filtered signal.
What is the frequency response of the X-Sub 118SA?
The announced frequency response ranges from 38 Hz to 120 Hz at -6 dB. The 18-inch driver is mounted in a bass-reflex enclosure.
How to adjust the phase between the subwoofer and the tops?
A 0° / 180° phase inverter is integrated. The position can be selected depending on the placement of the subwoofer and main speakers. This adjustment affects the bass summation around the crossover frequency.
Can a speaker be mounted on top of the subwoofer?
The M20 threaded socket accepts a pole for installing a speaker on top. The enclosure is made of 15 mm birch plywood and weighs 34 kg.



