JBL JRX218S 18 in. Compact Subwoofer
Description
JBL JRX218S 18 in. Compact Subwoofer
The JBL JRX218S plants tight, articulate low-end that cuts through live mixes without overwhelming the stage. Built for touring and venue work, its compact footprint and dual all-steel handles make it road-ready—load it in, position it, get to playing. The manageable weight and solid construction mean this sub stays dialed in night after night, supporting your tone with the bass foundation that matters.
Power & Connectivity
With 350 watts continuous and 1400 watts peak into a 4-ohm nominal impedance, the JRX218S integrates seamlessly into standard touring rigs and powered consoles. Dual Neutrik Speakon connectors let you wire parallel systems on the fly—flexibility built for real-world gigs.
Low-Frequency Performance
The 18" JBL woofer with stamped steel frame and 3" voice-coil delivers a rated maximum SPL of 133 dB peak at 1 meter, with 98 dB sensitivity that translates to punchy, responsive output in any room size. Frequency response spans 53 Hz to 250 Hz (±3 dB), locking in the bass and low-midrange pocket that defines your band's low-end character on stage.
Key Features
- 18" JBL woofer with stamped steel frame and 3" voice coil
- 350 watts continuous / 1400 watts peak power handling
- 4 ohms nominal impedance
- Frequency Response: 53 Hz – 250 Hz (±3 dB)
- Frequency Range: 34 Hz – 250 Hz (−10 dB)
- 98 dB sensitivity at 1 watt / 1 meter
- 133 dB maximum SPL (peak @ 1 m)
- 19 mm MDF enclosure with advanced adhesives and mechanical fasteners
- Black carpet covering with 18-gauge hexagon perforated steel grille
- Dual Neutrik Speakon NL-4 connectors
- Cast aluminum 35 mm pole mount receptacle
- Dimensions: 23.5" H × 20.3" W × 22" D; Weight: 71 lbs
The JRX218S offers road-tested engineering in a sub that stays reliable through the grind of touring and steady venue work. Solid rigging, predictable connectivity, and the low-end extension your band needs to own the room.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The JBL JRX218S is an 18-inch compact subwoofer designed for live sound reinforcement, mobile PA systems, and venue installations—delivering 133 dB peak SPL and controlled bass extension from 53 Hz to 250 Hz with 350 watts continuous power. Its manageable 71-pound weight, dual steel handles, and Speakon connectors make single-operator setup and integration straightforward across different venue sizes. Choose it when you need reliable, punchy low-end that travels well and pairs seamlessly with powered consoles or standard amplifier rigs.
Who This Is For
Great for
- ✓ Live Sound Reinforcement
- ✓ Mobile PA Systems
- ✓ Venue Installation
- ✓ Event Sound
Not the best pick for
- – Home Listening
- – Studio Monitoring
- – Bedroom Practice
Frequently Asked Questions
What power amp or console do I pair this with?
The JRX218S accepts 350 watts continuous and 1400 watts peak into its 4-ohm impedance, working reliably with standard amplifier configurations and powered mixing consoles equipped with subwoofer outputs. Dual Neutrik Speakon NL-4 connectors support parallel wiring for flexible system integration.
How heavy is it, and can one person set it up?
At 71 pounds with dual all-steel handles and balanced weight distribution, the JRX218S is designed for single-operator transport and positioning. Its compact footprint (23.5" H × 20.3" W × 22" D) makes it practical for mobile deployments and varying venue sizes.
What frequency range does it cover?
Frequency response is rated 53 Hz to 250 Hz (±3 dB), with extended range down to 34 Hz (−10 dB). The 18" JBL woofer with 3" voice coil delivers 98 dB sensitivity and provides the critical bass and low-midrange spectrum needed for live sound reinforcement.
How does it compare to QSC KS118 or Electro-Voice ETX-18SP?
The JRX218S sits in the same compact 18-inch subwoofer category, offering 133 dB peak SPL, straightforward Speakon connectivity, and efficient power handling. Comparison models like the KS118 and ETX-18SP serve similar live-sound and mobile PA roles; check feature-by-feature specs and your amplifier configuration to determine best fit for your system.
Is this for studio recording or home listening?
No—the JRX218S is purpose-built for live sound reinforcement and venue installation, not studio monitoring or home listening. Its tight, venue-appropriate bass and high SPL output suit stage and mobile PA deployment, not mix-critical recording environments.