FBT SUBline 218S
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- This item is covered for 3 years
Essential information about the FBT SUBline 218S passive bass cabinet
Essential information about the FBT SUBline 218S passive bass cabinet
- 18-inch passive subwoofer with Bass Reflex loading, designed to deliver deep and physical bass for sound reinforcement.
- High power handling : 1200 W RMS (4800 W Peak) with a recommended amplifier of 2400 W RMS.
- Italian manufacturing and Baltic birch plywood enclosure, built for touring and intensive use.
- Easy integration : Speakon NL4 connectors, omnidirectional dispersion, M20 threaded socket for pole mounting, and optional caster wheels.
Manufacturer Information
FBT
https://www.fbt.it
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Safety manager:
MSC Distribution
Email: infos@msc-distribution.com
Address:
A SUBline reference oriented towards "live" sound reinforcement and demanding installations
The FBT SUBline 218S fits within a clearly professional approach to bass cabinets: prioritizing impact, durability, and system coherence. The Italian design and manufacturing reflect a desire to offer a passive subwoofer capable of integrating into modern sound reinforcement setups, complementing satellite speakers or full-range tops.
Within a range dedicated to low frequencies, this model emphasizes a 1-way Bass Reflex architecture and a large-diameter driver to achieve a solid foundation in the low end and a realistic energy sensation, particularly appreciated in concerts, DJ sets, clubs, events, and high-level corporate gigs.
Who is this 18-inch subwoofer made for and for what uses
This passive bass cabinet is aimed at sound providers, sound engineers, integrators, venues, clubs, and communities seeking solid bass and a durable solution. It is also suitable for bands and DJs looking for effective sub reinforcement with the freedom to choose amplification and processing adapted to their equipment.
Thanks to its omnidirectional dispersion and ability to work low (specified response from 30 Hz to 0.25 kHz), the SUBline 218S is relevant to support kick drum, bass, synths, and electronic content. Its clear goal is to provide weight and acoustic pressure while remaining controllable via external filtering and a recommended high-pass filter.
Technical specifications
| Bluetooth | No | ||
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Questions frequently asked
What amplification is needed for the FBT SUBline 218S?
A 2400 W RMS amplifier is recommended for this 4-ohm passive subwoofer. Its power handling is specified at 1200 W RMS and 4800 W peak.
Does the SUBline 218S go low enough for electronic bass?
The specified frequency response ranges from 30 Hz to 0.25 kHz. The Bass Reflex design and the 18-inch driver support electronic content, kick drum, and bass.
What filtering is recommended with this passive subwoofer?
A high-pass filter set at 28 Hz with a 24 dB per octave slope is recommended. An external FBT DLM26 Digital Loudspeaker Management processor is also advised to handle crossovers, limiters, and alignment. This setup helps protect the 18-inch driver at high levels.
Can a satellite speaker be mounted on the subwoofer?
The M20 threaded pole mount allows installing a satellite speaker on a pole above the subwoofer.
Is the subwoofer suitable for frequent transportation?
The enclosure is made from Baltic birch plywood and includes 4 ergonomic aluminum handles. Weighing 77 kg for 970 × 670 × 661 mm, transportation can be facilitated by the KBW-1004S 4-wheel kit, sold separately.
