

Subwoofers
CVR Double Base
Quote-led subwoofers package available from Tay Music World.
USh 8,500,000
View ProductMartin Audio S218 Double Bass
UGX 1,800,000

Subwoofers
The S218 features large-area porting designed to reduce air noise at high output levels. This matters in clubs, event halls, and live music environments where the subwoofer may be driven hard for long periods and needs to stay controlled rather than sounding rough or choked.
Price
USh 1,800,000
Delivery in Kampala usually takes 2 to 4 days.
Pay by MTN MoMo, Airtel Money, or cash on delivery.
What this product does well and why it fits the setup.
The S218 features large-area porting designed to reduce air noise at high output levels. This matters in clubs, event halls, and live music environments where the subwoofer may be driven hard for long periods and needs to stay controlled rather than sounding rough or choked.
The S218 features large-area porting designed to reduce air noise at high output levels. This matters in clubs, event halls, and live music environments where the subwoofer may be driven hard for long periods and needs to stay controlled rather than sounding rough or choked.
The Martin Audio S218 is best suited for large club performance, large club installs, live event PA systems, DJ rigs, venue sound reinforcement, band systems, rental PA packages, and installations that already use compatible Martin Audio Blackline loudspeakers.
The S218 is a passive professional sub-bass cabinet and does not contain a built-in amplifier. It must be powered by a suitable external amplifier and electronically crossed over using the correct Martin Audio controller or compatible system processing before use.
The Martin Audio S218 is a dual 18-inch vented sub-bass system from the Blackline series, designed to extend and increase the low-frequency output of larger Martin Audio PA systems. It is built for venues, clubs, event production, rental companies, DJs, live bands, and installed sound systems that need serious bass output from a professional cabinet.
The S218 uses two direct-radiating 18-inch low-frequency drivers, each with a 4-inch high-temperature voice coil. This dual-driver design gives the cabinet strong air movement, deeper bass extension, and the kind of low-frequency weight needed for club systems, live music reinforcement, and larger PA setups.
The cabinet is designed to provide both good mid-bass punch and extended sub-bass output. That makes it useful for systems where kick drums, bass guitar, playback tracks, DJ music, and dancefloor energy need more physical impact than smaller single-driver subwoofers can provide.
Martin Audio designed the S218 for use with large-scale Blackline F12 and F15 systems. It can also be used as the low-frequency section of bi-amped or tri-amped H2 and H3 systems, making it suitable for more advanced PA configurations where tops and subs are processed separately.
The S218 must be electronically crossed over and is intended to be used with the Martin Audio M3 Electronic Controller. The controller provides the correct crossover and system processing required for proper integration with compatible Martin Audio tops and mid-high systems.
The cabinet is made from multi-laminate birch plywood and fitted with substantial handles plus four 4-inch castors for easier deployment. At 87kg, this is a serious professional subwoofer that needs proper transport planning, safe lifting, and a crew that understands large-format PA handling.
Technical details at a glance.
Brand
Subwoofers
Martin Audio
Model
Subwoofers
Blackline S218
Product Type
Subwoofers
Dual-driver vented sub-bass system
System Type
Subwoofers
Passive dual 18-inch subwoofer
Drivers
Subwoofers
2 x 18-inch / 460mm direct radiating low-frequency drivers
Voice Coil
Subwoofers
4-inch / 100mm high-temperature voice coil
Frequency Response
Subwoofers
35Hz to 150Hz ±3dB
Rated Power
Subwoofers
1000W AES / 4000W peak
Recommended Amplifier Power
Subwoofers
800W to 2000W into 4 ohms
Sensitivity
Subwoofers
102dB
Maximum SPL
Subwoofers
130dB continuous / 136dB peak
Nominal Impedance
Subwoofers
4 ohms
Crossover
Subwoofers
150Hz active
Controller Requirement
Subwoofers
Martin Audio M3 Electronic Controller
Enclosure Volume
Subwoofers
320 litres
Enclosure Material
Subwoofers
Multi-laminate birch plywood
Finish
Subwoofers
Textured black paint
Protective Grille
Subwoofers
Black perforated steel
Connectors
Subwoofers
2 x Neutrik NL4
Fittings
Subwoofers
4 x 4-inch / 100mm castors
Handles
Subwoofers
Substantial cabinet handles
Dimensions
Subwoofers
561mm width x 1066mm height x 780mm depth
Dimensions Imperial
Subwoofers
22.1 inches width x 42 inches height x 30.7 inches depth
Weight
Subwoofers
87kg / 191.5lb
Recommended Use
Subwoofers
Large club performance, club installs, live events, DJ systems, rental PA, and larger Martin Audio Blackline PA systems
Final purchase guidance and support information.
Quote support is available for venue planning, matching quantities, and installation-ready recommendations.


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