Rated 4.9 (153 reviews)
The SX118+ is a compact, high‑performance subwoofer that extends the system’s low‑frequency operating range to 38 Hz and delivers impressive output for such a compact enclosure.
SX118+ features a long‑excursion 18 in (460 mm) driver with a 4 in (100 mm) voice coil, a water‑resistant cone and a triple‑roll surround in a compact reflex enclosure. The driver design maximises output while minimising power compression and distortion. The four reflex ports have a large frontal area to reduce turbulent air noise at very high levels and the internal port geometry promotes laminar airflow.
The enclosure is built from multi‑laminate birch ply, finished with a durable polyurethane coating and fitted with a stainless‑steel grille, twin grab handles, skids, M10 mounting points (with internal brackets) for installation and a threaded pole socket for pole‑mounting point‑source loudspeakers. Cabinet wheels and a transit cover are available as optional accessories.
Compared with the SX118, the SX118+ is an all‑new design with enhanced performance and features. It is slightly larger, so it uses a new transit cover, and it includes new drivers and an improved cabinet.
The SX118+ adds a third NL4 input connector on the front to improve cabling for subwoofers used in cardioid configurations. For outdoor use, you no longer need a WRKIT, but you must seal all three NL4 sockets. Use the correct cable connectors (NLT4FX or NLT4FX‑BAG) for connected sockets and install a Martin Audio weatherproof NL4 sealing plug in any unused socket.
The SX118+ has two LED indicators, one on the front and one on the back, which you can illuminate via Vu‑Net software to identify each enclosure on the circuit. The rear LED is intended for use in cardioid setups.
