JBL SRX918S

Overview

The JBL SRX918S is an 18-inch powered subwoofer designed to deliver deep and powerful bass with clarity and precision. It provides 1,100 watts of continuous power and peaks at 2,500 watts, producing a low-end response that extends down to 35 Hz. This makes it a strong choice for touring musicians, DJs, and permanent installations that require impactful bass performance. Its rugged 18mm plywood enclosure ensures durability for frequent transport and heavy use.

Key features

• 18-inch woofer with JBL Differential Drive technology for clear, distortion-free bass even at high volumes
• Built-in Class-D amplifier that delivers efficient and reliable power for consistent performance
• Integrated DSP offering user-adjustable EQ, delay, and filtering to tailor sound precisely to your environment
• Rear-panel LCD screen for quick and easy access to settings during setup or live events
• Supports omnidirectional and cardioid modes, allowing flexible bass coverage to suit different venues
• Dual Ethernet ports with Neutrik etherCON connectors for seamless network integration and control
• Designed to work smoothly with SRX900-series full-range speakers for a complete sound reinforcement system
• Durable construction with an 18mm plywood enclosure built to withstand the rigors of touring and frequent use

Key specs

• Woofer size: 18 inches
• Continuous power output: 1,100 watts
• Peak power output: 2,500 watts
• Frequency response: down to 35 Hz
• Amplifier type: Class-D
• Enclosure material: 18mm plywood
• Connectivity: Dual Ethernet ports with Neutrik etherCON connectors

Connectivity and compatibility

The SRX918S features dual Ethernet ports with Neutrik etherCON connectors, enabling reliable network integration and remote control capabilities. It is designed to complement SRX900-series full-range speakers, making it easy to build a cohesive sound system for various professional audio setups. This compatibility ensures seamless integration whether you are stacking multiple subwoofers for large venues or installing a fixed sound system.

Performance and reliability

Equipped with JBL’s Differential Drive technology, the subwoofer maintains tight and distortion-free bass even at high output levels. The Class-D amplifier provides efficient power delivery, reducing heat and increasing reliability during extended use. The rugged plywood enclosure protects the internal components from damage during transport and setup, ensuring consistent performance in demanding environments.

Ideal uses and environments

This subwoofer fits well in live music venues, DJ setups, touring rigs, and permanent installations where deep, powerful bass is essential. Its flexible DSP controls and mode options allow it to adapt to different room acoustics and event sizes. Professionals who need a robust and tunable bass solution will find the SRX918S a strong choice for delivering impactful low frequencies that enhance the overall sound experience.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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