SB18 High-Power Passive
Subwoofer: Precision Bass for Professional Sound Systems Experience deep, powerful low frequencies with the SB18 passive subwoofer—a premium solution engineered for high-output live sound reinforcement, fixed installations, and immersive audio environments. Designed for professional audio engineers and system integrators, this 18-inch bass module delivers exceptional clarity, extended frequency response, and rugged durability in a sleek, customizable cabinet. Whether deployed in concert venues, nightclubs, theaters, or touring setups, the SB18 ensures consistent performance across diverse acoustic conditions. Key Features This subwoofer is built around a single weather-resistant 18" low-frequency driver mounted in a dual bass-reflex tuned enclosure that enhances efficiency and maximizes output. With a rated power handling of 700W RMS and peak capability up to 2800W, it supports demanding applications without compromise. The SB18’s 32Hz low-frequency limit provides deep, articulate bass response ideal for music production, film soundtracks, and immersive events. Its 138dB maximum sound pressure level (SPL) under half-space conditions ensures robust coverage even at long distances—perfect for large-scale deployments where punch and presence matter most. The enclosure, crafted from premium Baltic birch and beech plywood, offers superior rigidity and minimal resonance, while the IP55-rated design protects internal components from dust and light moisture exposure—ideal for outdoor stages or humid environments. A coated steel grille and acoustically transparent fabric safeguard the transducer, maintaining clean airflow and protecting against damage during installation or transport. Four-point rigging points enable secure stacking or flying configurations, making integration into line array systems seamless. Optional accessories allow for flush-mounting, custom finishes, and cardioid directivity patterns when used in pairs or more—greatly improving control over sound dispersion in challenging acoustic spaces. Detailed Description Unlike conventional subwoofers, the SB18 combines engineering precision with aesthetic flexibility. The dual-bass reflex port design, enhanced by laminar vents (L-VENTS™), reduces turbulence and increases LF efficiency, resulting in tighter, more controlled bass response. The 8Ω nominal impedance simplifies wiring and compatibility with standard amplifiers, while the push-in terminal block ensures quick, reliable connections. The modular construction allows for both standard placement and cardioid configuration—ideal for minimizing stage bleed in live performances or optimizing coverage in architectural installations. With a net weight of just 52kg (115 lbs), it remains manageable for install teams yet stable enough for permanent setups. Dimensions of 750 x 540 x 707mm make it suitable for tight spaces without sacrificing performance. Ideal Applications Perfect for use in professional audio systems requiring deep, accurate bass reproduction, the SB18 excels in a wide range of scenarios: live event sound reinforcement, permanent installations in clubs or corporate spaces, theater sound systems, mobile DJ setups, and studio monitoring extensions. It integrates effortlessly with other speakers in its product family to create omnidirectional or cardioid directivity patterns—offering precise control over how sound interacts with room boundaries and audience positioning. Whether you're managing a festival stage or designing a cinema’s surround system, this subwoofer adapts to your needs while delivering industry-leading SPL and dynamic range. User Feedback Users consistently praise the SB18 for its ability to deliver "punchy, clean bass" without distortion—even at high volumes. Many note the ease of integration with existing line array systems and appreciate the flexibility offered by the cardioid option, which significantly reduces unwanted feedback in front-of-house setups. Installers highlight the robust build quality and thoughtful design elements like the recessed connectors and durable finish, which contribute to long-term reliability in demanding environments. Frequently Asked Questions What makes the SB18 different from typical passive subs? It features a dual bass-reflex design with L-VENTS™ technology for improved efficiency, an IP55 rating for environmental resilience, and versatile mounting options including fly points and flush-fit hardware. Can I achieve cardioid directivity with one unit? No—cardioid patterns require combining two or more units using associated presets for optimal directional control. Is it compatible with digital amplifiers? Yes—it has an 8Ω impedance, making it compatible with most modern Class D amplifiers used in professional audio setups. How does it perform in outdoor settings? Thanks to its IP55 protection and weather-resistant cone, it performs reliably in moderate outdoor conditions such as open-air concerts or temporary installations. What are the best practices for rigging? Use the four-point rigging system for safe hanging or stacking; always follow load-bearing guidelines and ensure proper alignment when combining multiple units.
Product Categories : Subwoofer
