Product Overview

The JBL JRX218S is an 18-inch passive portable subwoofer (1400W rated) built to extend low-frequency output beneath JRX full-range loudspeakers for live events and portable commercial AV. It delivers impactful low end for music and program audio in multi-purpose rooms, all-hands spaces, and stage use.

Product Description

The JRX218S houses an 18-inch driver in a portable vented enclosure tuned for efficient low-frequency output. Paired with JRX full-range tops and a commercial amplifier, it reinforces the low end of a portable PA. A pole socket lets a full-range top mount above for a compact stacked system. For more options, browse the JBL Professional Passive PA Speakers collection.

Key Features

• 18″ Passive Subwoofer An 18-inch driver (1400W rated) extends portable low-frequency output.
• Vented Portable Enclosure Efficient low end in a transportable cabinet.
• Pole Socket Mounts a full-range top above for a compact stacked system.
• Passive Operation Pairs with a commercial amplifier.

Typical Applications

• Multi-purpose room
• All-hands room
• Auditorium

Technical Specifications

Full electrical specifications (sensitivity, maximum SPL, frequency response, impedance) should be confirmed against the JBL JRX218S specification sheet.

Frequently Asked Questions

Does the JRX218S need an amplifier?
Yes. It is a passive subwoofer and requires an external commercial amplifier matched to its load and power.

Which tops pair with it?
It is designed to reinforce JRX full-range loudspeakers, with a pole socket for stacking a top above.

What warranty and support apply?
Covered under JBL Professional’s warranty. Contact Creation Networks at sales@ for system support.