Robust JBL SRX818S 18” Passive Subwoofer – Tour-Ready & Powerful
The JBL SRX818S 18″ Passive Subwoofer System is built to deliver deep, powerful, and controlled bass for professional live sound and fixed installations. Equipped with a premium JBL 2279 18″ low-frequency driver, this subwoofer provides tight, impactful low-end performance ideal for concerts, clubs, theaters, and touring applications.
With 2400W peak power handling and a frequency range of 28Hz–150Hz, the SRX818S ensures room-shaking bass with clarity and precision. Its rugged enclosure design offers durability for transport and touring, while its tuning compatibility with Crown amplifiers and dbx processors allows for easy system optimization. Fully supported in HARMAN’s Audio Architect software, it seamlessly integrates with professional audio networks and setups.
Key Features
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18″ JBL 2279 low-frequency transducer for deep, accurate bass
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Power handling: 2400W Peak / 1200W Program / 600W Continuous
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Frequency range: 28Hz – 150Hz / Frequency response: 45Hz – 150Hz
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Maximum SPL: 129 dB (Peak) for high-impact performance
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Passive design for flexible system integration
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Tunings available for Crown amplifiers and dbx signal processors
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Fully supported in Audio Architect for advanced system control
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Rugged, versatile enclosure for portable or installed use
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Ideal match for SRX800 Series full-range speakers
Specifications
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Model: JBL SRX818S
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Type: 18″ Passive Subwoofer System
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LF Driver: JBL 2279H 18″ transducer
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Power Handling: 600W Continuous / 1200W Program / 2400W Peak
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Frequency Range: 28Hz – 150Hz
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Frequency Response: 45Hz – 150Hz
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Maximum SPL: 129 dB Peak
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Nominal Impedance: 8Ω
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Amplification: Passive
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Cabinet Construction: Rugged plywood with DuraFlex™ finish
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System Integration: Tunings for Crown and dbx; Audio Architect supported
Applications
The JBL SRX818S is ideal for:
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Live sound systems for concerts and touring events
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DJ and club installations requiring deep bass performance
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Theaters and auditoriums needing impactful low frequencies
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Houses of worship for clean and controlled low-end reinforcement
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Permanent installations in performance halls, event spaces, and entertainment venues
Frequently Asked Questions (FAQs)
1. How powerful is the JBL SRX818S subwoofer?
The SRX818S delivers 600W continuous, 1200W program, and 2400W peak power, providing powerful and reliable low-frequency output suitable for large venues and demanding live setups.
2. What kind of bass performance can I expect?
With a frequency range of 28Hz–150Hz, the SRX818S produces deep, punchy bass that enhances both music and live sound, maintaining clarity even at high volume levels.
3. Is the SRX818S an active or passive subwoofer?
This model is passive, which means it requires an external amplifier, giving users flexibility in system configuration and pairing with preferred amplification gear.
4. What amplifier works best with this subwoofer?
JBL provides factory tunings for Crown amplifiers and dbx signal processors, ensuring optimal sound quality and protection when used within the HARMAN ecosystem.
5. Can it integrate with other JBL speakers?
Yes. The SRX818S is perfectly matched with SRX800 Series full-range models such as the SRX812, SRX815, and SRX835 for a complete professional audio system.
6. Is the SRX818S durable enough for touring?
Absolutely. It features a rugged plywood enclosure with DuraFlex™ coating, designed to withstand the rigors of transport and frequent setup.
7. What makes this subwoofer suitable for installation and live use?
Its compact yet powerful design, versatile mounting options, and Audio Architect software support make it an excellent choice for both portable and fixed sound systems.
