JBL 18-inch Active Subwoofer
Features
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Purpose-Built Design
Built to handle the real world—tough, easy to use, and designed for quick transport. -
JBL Premium Transducers
High-performance components that deliver clear, powerful sound every time. -
Crown DriveCore Amplification
Trusted, efficient amplification from Crown ensures maximum output with minimal weight. -
Fully Configurable DSP
Tailor your sound with advanced DSP settings designed for professional control. -
18″ Subwoofer
Delivers deep, punchy bass to anchor your sound system with authority. -
Network Control Ready
Easily manage and monitor your system from a computer or connected device. -
Preloaded JBL Presets
Professionally tuned presets for fast, optimized setup in various applications. -
Easy-to-Read LCD Display
Includes a backlit screen and glow-in-the-dark panel labels for quick adjustments—even on dark stages. -
Caster Kit Compatible
Accepts the JBL WK-4S caster kit for smooth and easy mobility. -
M20 Threaded Pole Mount
Secure pole mounting for flexible speaker placement.
Complete DSP Control
The SRX800 Series comes packed with serious processing power. Its onboard 400MHz Sharc DSP gives you full control with:
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20 parametric EQs
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Up to 2 seconds of delay
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Built-in signal generators
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Input mixing and amplifier monitoring
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50 user presets
You can even load JBL’s V5 tunings to integrate seamlessly with top-tier Vertec and VTX systems. With an intuitive LCD interface, setup is fast, flexible, and reliable—whether you’re on the road or setting up for a fixed installation.
Specifications
System Type
Self-powered 18″ subwoofer designed for professional audio reinforcement.
Maximum SPL (1m)
Delivers a powerful peak output of 135 dB.
Frequency Range (-10 dB)
Covers from 29 Hz to 150 Hz for deep, extended bass.
Frequency Response (-3 dB)
Smooth performance between 35 Hz and 120 Hz.
Amplifier Design
Class D amplification for efficient, lightweight performance.
Peak Power Rating
1000 Watts of clean, punchy power.
Dimensions (H × W × D)
683 mm × 684 mm × 575 mm (26.89 in × 26.92 in × 22.62 in)
Net Weight
39.5 kg (87 lbs)
EQ and DSP Control
Equipped with 20 parametric EQ bands, speaker delay, and storage for up to 50 user-defined presets.
Inputs
Neutrik ¼” / XLR combo input and Neutrik XLR output.
Outputs
Two XLR outputs for flexible system integration.
Enclosure
Built from 18 mm plywood and coated with rugged Duraflex for durability on the road.
LF Driver
Features a single 18″ JBL Differential Drive® low-frequency driver.
System Processing
DSP-based processing fully integrated into the input module for maximum control and clarity.
Optional Accessories
SRX818SP-CVR-DLX
A deluxe padded cover specifically made for the SRX818SP. Constructed with water-resistant black nylon and a 2.5 mm polyethylene grille protector. Includes Velcro-closure handle cutouts and an embroidered JBL logo for a clean, professional look.
SRX818SP-CVR-DLX-WK4
Same deluxe cover as above, but designed to fit SRX818SP units equipped with the WK-4S rear-mounted caster kit (casters sold separately). Provides the same level of rugged protection while accommodating mobile setups.
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