{"product_id":"fbt-x-sub-118sa-active-subwoofe","title":"FBT X-SUB 118SA Active Subwoofer","description":"\u003cp data-start=\"835\" data-end=\"1341\"\u003eThe FBT X-SUB 118SA is a professional active 18\" bass reflex subwoofer designed to provide powerful low-frequency reinforcement for portable PA systems, fixed installations and live sound applications. As the larger model in the X-SUB active subwoofer range, it delivers deeper bass extension and greater output than the 15\" version, making it well suited to mobile DJs, live sound engineers, schools, houses of worship, venues, hospitality spaces, AV installers, event production teams and hire companies.\u003c\/p\u003e\n\u003cp data-start=\"1343\" data-end=\"1879\"\u003eThe X-SUB 118SA is designed as the ideal low-frequency companion for FBT X-LITE and X-PRO series loudspeakers. This makes it a strong choice for customers building a complete FBT active sound system, where full-range top speakers need additional bass support for music playback, DJ use, live vocals, small bands, event audio or venue sound reinforcement. FBT describes the X-SUB 118SA as a 1x 18\" bass reflex active subwoofer and the perfect low-frequency extension for the X-LITE and X-PRO ranges. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1881\" data-end=\"2478\"\u003eThe subwoofer uses a 1x 18\" woofer with a 3\" voice coil, giving it the cone area and excursion needed to deliver strong bass output in a professional sound system. Its frequency response is listed from 38Hz to 120Hz at -6dB, making it suitable for kick drum, bass guitar, electronic music, DJ playback, live performance and general programme audio where a full-range loudspeaker alone would not provide enough low-end depth. The maximum SPL is listed at 136dB half-space, giving the X-SUB 118SA the output capability required for demanding compact PA systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2480\" data-end=\"2972\"\u003ePower is provided by an integrated 1200W RMS Class D amplifier. This active design removes the need for an external amplifier rack, simplifying setup for portable users and making system specification easier for installers. For mobile DJs and event teams, this means fewer separate components to transport and connect. For fixed installations, it provides a matched amplifier and subwoofer package that can be integrated cleanly with active full-range speakers and professional audio sources.\u003c\/p\u003e\n\u003cp data-start=\"2974\" data-end=\"3450\"\u003eThe built-in DSP processor includes 4 presets, offering 2 response types with 2 different cut-off frequencies. This gives users a practical way to tune the subwoofer for different speaker pairings, room conditions and applications. Whether the system is being used for speech reinforcement with added warmth, music playback, DJ work or live performance, the onboard presets help simplify setup without needing complex external processing. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"3452\" data-end=\"3917\"\u003eThe X-SUB 118SA includes professional audio connectivity with XLR input and loop output, making it easy to integrate into a live sound or installed AV system. The subwoofer can receive signal from a mixer, DSP processor, audio interface or active loudspeaker system, then pass signal onward to additional loudspeakers or subwoofers. This makes it suitable for scalable PA systems where one or more subwoofers may be used depending on the size of the venue or event.\u003c\/p\u003e\n\u003cp data-start=\"3919\" data-end=\"4532\"\u003eThe cabinet is built from birch plywood with a scratch-resistant black painted finish, providing the durability required for regular handling, transport and installation. The enclosure includes an M20 top-mounted stand adapter, allowing a compatible full-range loudspeaker to be pole-mounted above the subwoofer. This creates a clean and practical sub-and-top system layout for mobile PA, school halls, function rooms, churches, bars and compact event setups. FBT also lists aluminium handles and optional 100mm transport wheels, supporting practical movement and deployment. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4534\" data-end=\"5026\"\u003eFor AV installers and venues, the X-SUB 118SA is a useful option where strong bass reinforcement is needed but the system still needs to remain relatively compact and manageable. It can be paired with X-PRO active tops for a complete active PA package, used as part of a venue sound system, or supplied as a portable subwoofer for events and hire use. Its 18\" driver makes it particularly suitable for music-led applications where bass impact is an important part of the listening experience.\u003c\/p\u003e\n\u003cp data-start=\"5028\" data-end=\"5392\"\u003eThe FBT X-SUB 118SA measures 510 x 655 x 630mm and weighs 39kg. These dimensions and weight should be considered when planning storage, transport, venue access and safe handling. While still manageable for professional portable use, it is a substantial active subwoofer and should be specified with suitable logistics in mind. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"5394\" data-end=\"5852\"\u003eFor customers looking to add deeper and more powerful low-frequency performance to an FBT active loudspeaker system, the X-SUB 118SA offers a strong balance of output, reliability and practical deployment. With an 18\" driver, 1200W RMS Class D amplification, 136dB SPL, DSP presets, XLR connectivity, birch plywood construction and M20 pole mount, it is a capable active subwoofer for portable PA, live sound, venue installations and professional AV systems.\u003c\/p\u003e","brand":"FBT Audio","offers":[{"title":"Default Title","offer_id":56657132945794,"sku":"44146","price":925.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5767\/2578\/files\/XSUB118SA.png?v=1779119034","url":"https:\/\/www.theavbarn.co.uk\/products\/fbt-x-sub-118sa-active-subwoofe","provider":"The AV Barn","version":"1.0","type":"link"}