Name: SX218
Rating: 4.7 (23 reviews)

Where to Buy or Rent

The SX218 delivers very high output levels and superb transient performance with minimal distortion.

Please note this product has been updated since January 2019 from an earlier iteration.

Features

Dual-driver, direct radiating subwoofer
2 x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
Very high output capability
Tour-grade plywood enclosure with flying inserts

Applications

Touring sound reinforcement for small and medium-size venues
Fixed installations in concert halls, theatres, ballrooms and HoW
Sports stadium, arena installations & corporate AV events
Outdoor restaurant, bar and hotel entertainment areas
Concourses and Theme Parks

With an operating range of 35Hz-150Hz ± 3dB, it houses dual 18” long-excursion (460mm)/4” (100mm) voice coil drivers with water-resistant cones and triple roll surrounds. Each driver is rated to handle 1000 watts AES and has a magnet structure which is suspension engineered for maximum linear excursion.

The enclosure is constructed from multi-laminate birch ply and finished with a durable polyurea coating. Eight reflex ports provide a large frontal area to reduce turbulent air noise, and a perforated steel grille protects the drivers from damage. SX218 features a M20 pole mount insert for added versatility in deployment.

The product is supplied as standard without cabinet wheels, but they are available as an accessory.

By adding the input board cover accessory, SX218 is fully weather resistant and suitable for permanent outdoor usage.

Links

User guide Brochure Datasheet Settings [v1.9]

Specification

TYPE	Dual-driver, direct radiating subwoofer
FREQUENCY RESPONSE (1)	35Hz – 150Hz ±3dB, -10dB @ 30Hz
DRIVER	2 x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
RATED POWER (2)	2000W AES, 8000W peak
SENSITIVITY (10)	105dB
MAXIMUM SPL (9)	144dB
NOMINAL IMPEDANCE	2 x 8Ω
DISPERSION (-6dB)	Omnidirectional/or Cardioid (paired)
ENCLOSURE	Multi-laminate birch/poplar ply
FINISH	Durable Polyurea Coating
PROTECTIVE GRILLE	Black perforated Zintec
CONNECTORS	2 x NL4 type
PIN CONNECTIONS (INPUT)	LF1: 1+, 1- LF2: 2+, 2-
PINS CONNECTIONS (LINK)	LF1: 1+, 1- LF2: 2+, 2-
FITTINGS	Two skids on base, with mating channels on top 24 x M10 mounting points 4 x bar handles, 2 on each side 4 x fittings for optional transit cover M20 Pole mount insert 16 x M8 inserts for optional castors
DIMENSIONS (INCL SKIDS)	(W) 1093mm x (H) 537mm x (D) 792mm (920mm including castors) (W) 43in x (H) 21.1in x (D) 31.2in (36.2in including castors)
WEIGHT	98.5kg (217lbs) w/o castors 102kg (225lbs) with castors

Architectural Specs

SX218

The loudspeaker shall be a subwoofer consisting of two 18” reflex-loaded, long-excursion, low frequency transducers. The on-axis frequency response shall be 35Hz-150kHz +/- 3dB and the loudspeaker shall produce a maximum SPL of 144dB peak calculated at 1 metre.

Power handling shall be 2000W AES, 8000W peak. Rated impedance shall be 8 ohms per driver. The rear connector panel shall be fitted with two NL4 type connectors and the loudspeaker shall be operated in conjunction with a dedicated controller amplifier.

The loudspeaker enclosure shall be constructed from multi-laminate plywood with a durable polyurea coating. The drivers shall be protected by a perforated Zintec grille and the enclosure shall be fitted with bar handles, skids and flying inserts.

Dimensions including skids, excluding castors (W x H x D) shall be 1093mm x 537mm x 792mm (43in x 21.1in x 31.2in). Dimensions including skids and castors (W x H x D) shall be 1085mm x 537mm x 920mm (42,7in x 21.1in x 36.2in). Weight shall be 102kg (225lbs).

The loudspeaker shall be the Martin Audio SX218.

Technical Drawings & 3D Models