Martin Audio SXP218
Direct Radiating
Dual Powered 18" Subwoofer
Description
A self-powered system, the SXP218 incorporates a Class D amplifier, DSP and Dante™ digital audio networking — simplifying set-up, enhancing control and eliminating amplifier racks. The onboard amplifier delivers a total of 4000W peak output to the drivers, and its switched-mode power supply auto-ranges to global mains voltages from 100 to 240V 50/60Hz. DSP functions — including parametric EQ, delay, muting, gain and preset selection — can be controlled over Ethernet from a PC or Windows® tablet via intuitive VU-NET™ proprietary software.
For simple set-ups, ‘plug-and-play’ presets for operation with the CDD-LIVE 8, CDD-LIVE 12 or CDD-LIVE 15 — as well as a user-defined preset — can be selected on the rear panel, instead of using computer control. Additional presets provide the appropriate settings for the rear-facing subwoofer in a cardioid pair.
As an alternative to its analogue inputs, the SXP218 is Dante enabled for digital audio distribution and control over a single CAT5 cable to maintain audio quality however long the cable run.
The enclosure is constructed from multi-laminate plywood with a durable polyurea coating and equipped with a perforated Zintec grille, four grab handles, skids and M10 flying inserts. SXP218 also features an 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, the subwoofer is fully weather resistant and suitable for permanent outdoor usage.
SXP218 Features
- Dual-driver, self-powered subwoofer
- 2 x 18” (460mm) drivers with 4” (100mm) voice coils
- Very high output capability
- Onboard Class D amplification and DSP
- Dante™ Digital Audio networking
- Global mains operation with Power Factor Correction
- Tour-grade plywood enclosure with flying inserts
- IP24 rating option with rain cowl
Resources & Downloads
Data sheets, manuals and resources for the SXP218
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Quick Specs
- ACOUSTICS
- Type
- Dual-driver, direct radiating powered subwoofer
- Frequency Response
- 35Hz – 150Hz ±3dB, -10dB @ 30Hz
- Driver
- 2x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
- Input Sensitivity
- -20dBu for 100dB SPL (CDD12/15 pre-set), -13dBu for 100dB SPL (CDD8 pre-set)
Technical Specifications
- ACOUSTICS
- Type
- Dual-driver, direct radiating powered subwoofer
- Frequency Response
- 35Hz – 150Hz ±3dB, -10dB @ 30Hz
- Driver
- 2x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
- Input Sensitivity
- -20dBu for 100dB SPL (CDD12/15 pre-set), -13dBu for 100dB SPL (CDD8 pre-set)
- Maximum SPL
- 140dB continuous / 143dB peak
- Dispersion
- Omnidirectional / or Cardioid (paired)
- Crossover
- Active Presets for CDD Live 8, 12 & 15 mono-pole or cardioid (paired)
- MODULE AUDIO INPUT
- Connectors
- Female XLR input, male XLR link output, Dante Audio Neutrik® Ethercon
- Analogue Input Impedance
- 20 kΩ balanced to ground
- Maximum Analogue Input Level
- 24.6 Vpp (+21dBu), over voltage protected
- Internal Processing
- Multi-channel DSP, programmable via TCP/IP using VU-Net software, PEQ/shelving filters, Up to 48dB/Oct LPF, Up to 200mS input delay, Pre-set selection via rear panel switch
- NETWORK
- Connectors.
- 2 x Neutrik® Ethercon RJ45
- Protocol
- TCP/IP and UDP/IP
- AMPLIFIER MODULE
- Type.
- Two 2 channel switch-mode, class D, Bridged Tied Load
- Peak Output Power
- 4000W
- Continuous Output Power
- 2000W
- Average Efficiency
- 89%
- Cooling
- External fan
- Maximum Ambient Temperature
- 40°C (104°F) for full output
- POWER SUPPLY
- Type:
- Switch mode, fixed frequency with PFC
- AC Input Operating Range
- 85 – 265V ~ AC, 50 - 60Hz
- Power Factor
- > 0.98
- Nominal Power Consumption
- 550W
- Mains Connector
- Neutrik® Powercon True1
- MECHANICAL
- Enclosure
- Extensively braced multi-laminate birch plywood.
- Finish
- Textured black PU coating
- Protective Grille
- Black perforated Zintec
- Fittings
- Two skids on base, with mating channels on top, 16 x M8 inserts for optional castors, 24 x M10 mounting points, 4x Bar handles, 2 on each side, 4x fittings for optional transit cover, M20 Pole mount insert
- IP Rating
- IP24 factory option available
- Dimensions
- (W) 1085mm x (H) 537mm x (D) 792mm (920mm including castors), (W) 42.72in x (H) 21.13in x (D) 31.16in (36.20in including castors)
- Weight
- 101.5kg (224lbs) w/o castors 105kg (231lbs) with castors
- Accessories
- 16 x M8 inserts for optional castors, Input Board Cover, Transit Cover
A self-powered system, the SXP218 incorporates a Class D amplifier, DSP and Dante™ digital audio networking — simplifying set-up, enhancing control and eliminating amplifier racks. The onboard amplifier delivers a total of 4000W peak output to the drivers, and its switched-mode power supply auto-ranges to global mains voltages from 100 to 240V 50/60Hz. DSP functions — including parametric EQ, delay, muting, gain and preset selection — can be controlled over Ethernet from a PC or Windows® tablet via intuitive VU-NET™ proprietary software.
For simple set-ups, ‘plug-and-play’ presets for operation with the CDD-LIVE 8, CDD-LIVE 12 or CDD-LIVE 15 — as well as a user-defined preset — can be selected on the rear panel, instead of using computer control. Additional presets provide the appropriate settings for the rear-facing subwoofer in a cardioid pair.
As an alternative to its analogue inputs, the SXP218 is Dante enabled for digital audio distribution and control over a single CAT5 cable to maintain audio quality however long the cable run.
The enclosure is constructed from multi-laminate plywood with a durable polyurea coating and equipped with a perforated Zintec grille, four grab handles, skids and M10 flying inserts. SXP218 also features an 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, the subwoofer is fully weather resistant and suitable for permanent outdoor usage.
- Dual-driver, self-powered subwoofer
- 2 x 18” (460mm) drivers with 4” (100mm) voice coils
- Very high output capability
- Onboard Class D amplification and DSP
- Dante™ Digital Audio networking
- Global mains operation with Power Factor Correction
- Tour-grade plywood enclosure with flying inserts
- IP24 rating option with rain cowl
| ACOUSTICS | |
| Type | Dual-driver, direct radiating powered subwoofer |
| Frequency Response | 35Hz – 150Hz ±3dB, -10dB @ 30Hz |
| Driver | 2x 18” (460mm)/4” (100mm) voice coil, long excursion, ferrite magnet, waterproof cone |
| Input Sensitivity | -20dBu for 100dB SPL (CDD12/15 pre-set), -13dBu for 100dB SPL (CDD8 pre-set) |
| Maximum SPL | 140dB continuous / 143dB peak |
| Dispersion | Omnidirectional / or Cardioid (paired) |
| Crossover | Active Presets for CDD Live 8, 12 & 15 mono-pole or cardioid (paired) |
| MODULE AUDIO INPUT | |
| Connectors | Female XLR input, male XLR link output, Dante Audio Neutrik® Ethercon |
| Analogue Input Impedance | 20 kΩ balanced to ground |
| Maximum Analogue Input Level | 24.6 Vpp (+21dBu), over voltage protected |
| Internal Processing | Multi-channel DSP, programmable via TCP/IP using VU-Net software, PEQ/shelving filters, Up to 48dB/Oct LPF, Up to 200mS input delay, Pre-set selection via rear panel switch |
| NETWORK | |
| Connectors. | 2 x Neutrik® Ethercon RJ45 |
| Protocol | TCP/IP and UDP/IP |
| AMPLIFIER MODULE | |
| Type. | Two 2 channel switch-mode, class D, Bridged Tied Load |
| Peak Output Power | 4000W |
| Continuous Output Power | 2000W |
| Average Efficiency | 89% |
| Cooling | External fan |
| Maximum Ambient Temperature | 40°C (104°F) for full output |
| POWER SUPPLY | |
| Type: | Switch mode, fixed frequency with PFC |
| AC Input Operating Range | 85 – 265V ~ AC, 50 - 60Hz |
| Power Factor | > 0.98 |
| Nominal Power Consumption | 550W |
| Mains Connector | Neutrik® Powercon True1 |
| MECHANICAL | |
| Enclosure | Extensively braced multi-laminate birch plywood. |
| Finish | Textured black PU coating |
| Protective Grille | Black perforated Zintec |
| Fittings | Two skids on base, with mating channels on top, 16 x M8 inserts for optional castors, 24 x M10 mounting points, 4x Bar handles, 2 on each side, 4x fittings for optional transit cover, M20 Pole mount insert |
| IP Rating | IP24 factory option available |
| Dimensions | (W) 1085mm x (H) 537mm x (D) 792mm (920mm including castors), (W) 42.72in x (H) 21.13in x (D) 31.16in (36.20in including castors) |
| Weight | 101.5kg (224lbs) w/o castors 105kg (231lbs) with castors |
| Accessories | 16 x M8 inserts for optional castors, Input Board Cover, Transit Cover |
About Penguin Media Solutions
Penguin Media Solutions is a professional audio, video, and lighting design, installation, and maintenance company based in Brighton, UK. As an authorised Martin Audio dealer, we provide high-performance AV systems for commercial venues, hospitality, and event spaces across Brighton, London, and South-East England.
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