




Martin Audio SX218 Dual Driver 18" 8000W/2000W Passive Direct Radiating Subwoofer for Stage Music Performance
SX218
Dual-driver, direct radiating subwoofer

Ā
The SX218 achieves the ultimate in subwoofer performance for the most demanding applications ā delivering very high output levels and
superb transient performance with minimal distortion.
Ā
With an operating range of 35Hz-150Hz ± 3dB, it houses dual 18ā long excursion (460mm)/4ā (100mm) voice coil drivers with waterresistant cones and triple roll surrounds. Each driver is rated to handle 1000 watts AES, and has a magnet structure and suspension engineered for maximum linear excursion.
Ā
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.
Ā
The product is supplied as standard without cabinet wheels, but they are available as an accessory.
Ā
By adding the input board cover accessory, SX218 is fully weather resistant and suitable for permanent outdoor usage.
Ā
A flying system is available for installed systems which require a flown subwoofer solution.
Features
- Dual-driver, direct radiating subwoofer
- 2 x 18ā (460mm)/4ā (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


Technical Specifications
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TYPE: Dual-driver, direct radiating subwoofer
-
FREQUENCY RESPONSE: 35Hz ā 150Hz ±3dB, -10dB @ 30Hz
-
DRIVER: 2 x 18ā (460mm)/4ā (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
-
RATED POWER: 2000W AES, 8000W peak
-
SYSTEM AMPLIFIER: iKON iK42
-
SENSITIVITY: 105dB
-
MAXIMUM SPL: 144dB peak
-
NOMINAL IMPEDANCE: 2 x 8 Ohms
-
DISPERSION: Omnidirectional/or Cardioid (paired)
-
ENCLOSURE: Multi-laminate birch/poplar ply
-
FINISH: Textured black paint
-
PROTECTIVE GRILLE: Black perforated Zintec
-
CONNECTORS: 2 x NL4
-
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
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DIMENSIONS: (INCL SKIDS) (W) 1093mm x (H) 537mm x (D) 792mm
-
(920mm including castors)
-
WEIGHT: Weight 98.5kg (217lbs) w/o castors, 102kg (225lbs) with castors
-
ACCESSORIES: 16 x M8 inserts for optional castors, Input Board Cover, Transit Cover
Original: $3,491.68
-65%$3,491.68
$1,222.09Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
SX218
Dual-driver, direct radiating subwoofer

Ā
The SX218 achieves the ultimate in subwoofer performance for the most demanding applications ā delivering very high output levels and
superb transient performance with minimal distortion.
Ā
With an operating range of 35Hz-150Hz ± 3dB, it houses dual 18ā long excursion (460mm)/4ā (100mm) voice coil drivers with waterresistant cones and triple roll surrounds. Each driver is rated to handle 1000 watts AES, and has a magnet structure and suspension engineered for maximum linear excursion.
Ā
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.
Ā
The product is supplied as standard without cabinet wheels, but they are available as an accessory.
Ā
By adding the input board cover accessory, SX218 is fully weather resistant and suitable for permanent outdoor usage.
Ā
A flying system is available for installed systems which require a flown subwoofer solution.
Features
- Dual-driver, direct radiating subwoofer
- 2 x 18ā (460mm)/4ā (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


Technical Specifications
-
TYPE: Dual-driver, direct radiating subwoofer
-
FREQUENCY RESPONSE: 35Hz ā 150Hz ±3dB, -10dB @ 30Hz
-
DRIVER: 2 x 18ā (460mm)/4ā (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
-
RATED POWER: 2000W AES, 8000W peak
-
SYSTEM AMPLIFIER: iKON iK42
-
SENSITIVITY: 105dB
-
MAXIMUM SPL: 144dB peak
-
NOMINAL IMPEDANCE: 2 x 8 Ohms
-
DISPERSION: Omnidirectional/or Cardioid (paired)
-
ENCLOSURE: Multi-laminate birch/poplar ply
-
FINISH: Textured black paint
-
PROTECTIVE GRILLE: Black perforated Zintec
-
CONNECTORS: 2 x NL4
-
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)
-
WEIGHT: Weight 98.5kg (217lbs) w/o castors, 102kg (225lbs) with castors
-
ACCESSORIES: 16 x M8 inserts for optional castors, Input Board Cover, Transit Cover
























