AUDAC FX1.18 – High-Output 18" Horn-Loaded Subwoofer

What is the AUDAC FX1.18 18" horn-loaded subwoofer?

The AUDAC FX1.18 is a high-output, horn-loaded 18" subwoofer cabinet built as the low-frequency half of the AUDAC FX series sound system. It delivers 800 W continuous (AES) power at 8 Ω, 102 dB sensitivity and 131 dB maximum SPL across a 37 Hz – 130 Hz response. Pair it with the FX3.15 3-way loudspeaker for a scalable system in clubs, sports facilities, event venues and large multi-purpose rooms.

How does the AUDAC FX1.18 18" horn-loaded subwoofer work?

The FX1.18 loads a single 18" ferrite woofer into a horn enclosure, which raises efficiency and gives tight, punchy low-frequency reinforcement with clear attack and definition. It is an actively driven system with no internal crossover, so it needs a DSP amplifier or processor to set the crossover and protect the driver. AUDAC's reference FORTE315.4 set combines two FX1.18 subwoofers and two FX3.15 tops with SMQ500 and SMQ750 WaveDynamics DSP amplifiers. Two 4-pin Speakon-compatible connectors allow linkthrough when several identical cabinets run on the same system. The cabinet is 0.71" solid plywood finished in scratch-resistant, weatherproof DuraCoat texture paint, with eight integrated carry handles. An integrated metal rigging frame lets multiple cabinets be flown together; for ceiling installs, the MBK302S flying system hangs one FX1.18 with one FX3.15. At 139.55 lb, plan rigging points and structural review before installation.

What are the key features of the AUDAC FX1.18 18" horn-loaded subwoofer?

• Horn-loaded 18" design — the horn enclosure increases output and gives tight, defined bass for live and recorded music.
• 800 W continuous power — handles 800 W AES, 1600 W program and 3200 W peak at 8 Ω.
• 131 dB maximum SPL — 102 dB sensitivity lets a single cabinet cover large rooms and arenas.
• Flat 37 Hz – 130 Hz response — reproduces deep, even low end within ±3 dB.
• FX series integration — scales with the FX3.15 top cabinet from a single pair to larger multi-cabinet systems.
• Speakon linkthrough — two 4-pin Speakon-compatible connectors daisy-chain identical cabinets on one amplifier channel.
• Integrated rigging frame — a built-in metal frame allows safe flying and multi-cabinet arrays.
• DuraCoat finish — weatherproof, scratch-resistant texture paint protects the plywood cabinet.
• Eight carry handles — multifunctional handles make positioning a 139 lb cabinet manageable.
• Warranty — backed by a 5-year AUDAC manufacturer warranty.

Where is the AUDAC FX1.18 18" horn-loaded subwoofer typically used?

• Auditorium
• Multi-purpose room
• House of worship
• All-hands room

Technical Specifications

Frequently Asked Questions