JBL SRX818SP 18" Self-Powered Subwoofer System

Overview

The JBL SRX818SP is an 18-inch self-powered subwoofer system designed to deliver deep and powerful bass with a peak power output of 1000 watts. It reproduces low frequencies down to 29 Hz, making it a strong choice for professional audio setups that require impactful and clear low-end sound. This subwoofer combines efficient amplification and advanced technology to provide distortion-free bass suitable for live events, tours, and permanent installations.

Key features

• Class D amplifier delivers efficient power without compromising sound quality or reliability.
• JBL Differential Drive technology maintains clear and tight bass even at high volume levels.
• Onboard LCD screen allows easy and direct control of settings for quick adjustments on site.
• HiQnet network control supports remote management, enabling fine-tuning from a distance.
• Flexible connectivity with XLR and 1/4-inch inputs plus balanced XLR outputs for seamless integration into various sound systems.
• M20 threaded pole mount provides versatile placement options alongside other speakers for optimal sound distribution.
• Rugged plywood construction combined with ergonomic handles ensures durability and portability for frequent transport and setup.

Key specs

• Driver size: 18 inches
• Peak power output: 1000 watts
• Frequency response: down to 29 Hz
• Amplifier type: Class D
• Inputs: XLR and 1/4-inch
• Outputs: Balanced XLR
• Mounting: M20 threaded pole mount
• Construction: Plywood enclosure with ergonomic handles

Connectivity and compatibility

The SRX818SP offers versatile connectivity options that make it easy to integrate into a wide range of professional audio setups. The combination of XLR and 1/4-inch inputs accommodates different signal sources, while balanced XLR outputs allow you to link additional speakers or subwoofers. This flexibility ensures the subwoofer fits well in DJ rigs, live sound systems, and installed audio environments.

Performance and reliability

Designed for demanding professional use, this subwoofer delivers consistent and powerful bass with minimal distortion thanks to JBL’s Differential Drive technology. The Class D amplifier provides efficient power handling, reducing heat and improving reliability during extended performances. Its robust plywood cabinet protects internal components while the ergonomic handles make it easier to transport between venues.

Ideal uses and environments

The JBL SRX818SP is well suited to live music events, DJ performances, touring sound systems, and fixed installations where strong, clear bass is essential. Its ability to reproduce very low frequencies with precision makes it a valuable addition to any setup that requires impactful low-end sound. Users who need a durable, portable subwoofer with advanced control options will find this model meets those needs effectively.