{"product_id":"sx118-1x18-direct-radiating-reflex-loaded-subwoofer-1500w-black","title":"SX118+ 1x18\" Direct Radiating Reflex-Loaded Subwoofer 1500W Black","description":"\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eSX118+ 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.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eCompared 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.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCompact, direct radiating reflex-loaded subwoofer\u003c\/li\u003e\n\u003cli\u003e18” (460mm) long-excursion driver, 4” (100mm) voice coil, neodymium motor, waterproof cone\u003c\/li\u003e\n\u003cli\u003eHigh output capability\u003c\/li\u003e\n\u003cli\u003eTour-grade plywood enclosure with M10 mounting points\u003c\/li\u003e\n\u003cli\u003eAvailable in black or white\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType:  Compact, direct radiating reflex-loaded subwoofer\u003c\/li\u003e\n\u003cli\u003eFrequency Response:  38Hz – 100Hz ±3dB, -10dB @ 31Hz\u003c\/li\u003e\n\u003cli\u003eDriver:  18 in (460 mm) long‑excursion driver with 4 in (100 mm) aluminium voice coil, neodymium motor with T‑pole and demodulation ring, waterproof cone\u003c\/li\u003e\n\u003cli\u003eRated Power:  1500W AES, 6000W peak\u003c\/li\u003e\n\u003cli\u003eRecommended Amplifier:  iK41, iK42, iK81, bridged for full output\u003c\/li\u003e\n\u003cli\u003eSensitivity:  99.5 dB\u003c\/li\u003e\n\u003cli\u003eMaximum SPL:  131dB continuous, 137dB peak, 143dB peak with crest factor 4\u003c\/li\u003e\n\u003cli\u003eNominal Impedance:  8 ohms\u003c\/li\u003e\n\u003cli\u003eDispersion (-6dB):  Omni-directional or cardioid when paired\u003c\/li\u003e\n\u003cli\u003eEnclosure:  Multi-laminate birch ply\u003c\/li\u003e\n\u003cli\u003eFinish:  Textured black or white paint\u003c\/li\u003e\n\u003cli\u003eProtective Grille:  Black or white perforated stainless steel\u003c\/li\u003e\n\u003cli\u003eEnvironmental Testing:\n\u003cul\u003e\n\u003cli\u003eIP rating IP21\u003c\/li\u003e\n\u003cli\u003eMIL-STD-810H\u003c\/li\u003e\n\u003cli\u003eISO 4892-2 Solar Radiation\u003c\/li\u003e\n\u003cli\u003eISO 12944-6 Category C3 Corrosion resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eLED Indicators:  Two LEDs: one front, one rear (rear LED for cardioid subs)\u003c\/li\u003e\n\u003cli\u003eConnectors:\n\u003cul\u003e\n\u003cli\u003e3 x NLT4MPXX-BAG (one front, two rear)\u003c\/li\u003e\n\u003cli\u003eIP54 weather‑resistant seal with NLT4FX, NLT4FX‑BAG or weatherproof NL4 sealing plug\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003ePIN Connections (Input on Front) 1+\/1-\u003c\/li\u003e\n\u003cli\u003ePIN Connections (Input on Rear) 1+\/1-\u003c\/li\u003e\n\u003cli\u003ePIN Connections (Link on Rear):\n\u003cul\u003e\n\u003cli\u003e1+\/1- linked to 1+\/1-\u003c\/li\u003e\n\u003cli\u003e2+\/2- linked to 2+\/2-\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eFittings:\n\u003cul\u003e\n\u003cli\u003eTwo skids on base, with mating channels on top\u003c\/li\u003e\n\u003cli\u003eM20 top-mounted thread plate for pole mounting\u003c\/li\u003e\n\u003cli\u003e20 x M10 mounting points, 5 on top, 5 on bottom, 4 on left, 4 on right, 2 on back\u003c\/li\u003e\n\u003cli\u003e2 x bar handles, one on each side\u003c\/li\u003e\n\u003cli\u003e16 x M8 inserts for optional castors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (incl skids):\n\u003cul\u003e\n\u003cli\u003e(W) 650 mm x (H) 603 mm x (D) 634 mm (762 mm with castors)\u003c\/li\u003e\n\u003cli\u003e(W) 25.6 in x (H) 23.7 in x (D) 25.0 in (30.0 in with castors)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight:  49.2 kg (109 lbs), 52.5 kg (116 lbs) with castors\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Martin Audio","offers":[{"title":"Default Title","offer_id":56536577933690,"sku":"MAUSX118PLUS","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0511\/4245\/9568\/files\/WEBMAU00578_SX118PLUS_1.webp?v=1770109851","url":"https:\/\/leisuretec.co.uk\/products\/sx118-1x18-direct-radiating-reflex-loaded-subwoofer-1500w-black","provider":"Leisuretec Distribution Ltd","version":"1.0","type":"link"}