JBL PRX418S 18" Subwoofer
Description
JBL PRX418S 18" Subwoofer
The PRX418S is a compact subwoofer engineered to anchor mix translations and deliver authoritative low-end extension in studio and project-space environments. Its front-loaded vented design and robust construction provide the SPL headroom and frequency definition needed for accurate bass monitoring, whether tracking live instruments or mixing critically.
Design & Build
Built with a birch/poplar multi-laminate hardwood enclosure finished in durable DuraFlex, the PRX418S resists wear from studio relocation and sustained operation. The 16-gauge steel grille with CNC-machined construction and acoustically transparent lining protects the 18" JBL Selenium woofer while maintaining clean sonic output without acoustic coloration.
Recording & Mixing Performance
The PRX418S integrates seamlessly into sub/sat monitoring systems, providing tight, focused low-frequency reinforcement from 35–250 Hz (-10 dB) with a usable peak response of 52–120 Hz (+3 dB). Its 800W continuous / 1600W program / 3200W peak power handling and 130 dB SPL peak maximum output deliver clean, controlled bass extension for accurate mix translation at moderate to high working levels.
Key Features
- 18" JBL Selenium woofer in front-loaded, vented enclosure
- Birch/poplar multi-laminate hardwood enclosure with DuraFlex finish
- 16-gauge steel grille, CNC-machined with internally lined acoustically transparent screen
- 800W continuous / 1600W program / 3200W peak power rating
- Frequency response: 35 Hz – 250 Hz (-10 dB)
- Usable peak response: 52 Hz – 120 Hz (+3 dB)
- 95 dB SPL system sensitivity (1W @ 1m)
- 130 dB SPL peak maximum output
- 8 ohms nominal impedance
- Dual Neutrik Speakon NL-2 / ¼" TS phone combo connectors wired in parallel
- Dimensions: 678 mm H × 536 mm W × 615 mm D (26.7" × 21.1" × 24.2")
- Weight: 36 kg (79 lbs)
The PRX418S combines professional-grade components, efficient power handling, and compact footprint to deliver reliable subwoofer performance in tracking and mixing environments demanding high-output, extended low-frequency monitoring.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The JBL PRX418S is a compact 18-inch subwoofer designed for controlled, focused low-frequency reinforcement in mixing and monitoring applications, delivering tight bass response between 52–120 Hz without the bloat of consumer subwoofers. Its efficient 800W continuous power handling and clean 130 dB SPL peak output make it suitable for larger studio rooms, live recording setups, or hybrid control rooms that demand extended low end with clarity. Choose it when your mix needs precise, defined sub bass that won't muddy your mids and translates reliably across different playback systems.
Who This Is For
Great for
- ✓ Live Sound Reinforcement
- ✓ DJ/Club Systems
- ✓ Touring Rigs
Not the best pick for
- – Home Listening/Residential Rooms
- – Bedroom Studios
Frequently Asked Questions
What venues and system types is the PRX418S built for?
The PRX418S is designed for live sound reinforcement, DJ and club systems, and touring rigs. Its front-loaded vented design and compact 26.7" H × 21.1" W × 24.2" D dimensions make it suitable for fixed installations and road deployments that require extended bass coverage without excessive bulk.
How much power does the PRX418S handle, and what's its maximum output?
The subwoofer is rated for 800W continuous, 1600W program, and 3200W peak power handling. Its peak maximum output reaches 130 dB SPL, delivering clean, controlled bass even at extended throws in demanding venues.
What is the frequency response, and how does it integrate with other speakers?
The PRX418S operates from 35–250 Hz at -10 dB, with a usable peak response of 52–120 Hz at +3 dB. It integrates seamlessly into sub/sat systems and features dual Neutrik Speakon NL-2 and ¼" TS phone combo connectors wired in parallel for flexible integration.
How is the PRX418S built to handle touring and transport?
The enclosure uses birch/poplar multi-laminate hardwood finished in durable DuraFlex, and the grille is 16-gauge steel with CNC-machined construction. These materials resist wear from transport and harsh environments while maintaining clean sonic output. The subwoofer weighs 79 lbs, making it portable for road rigs.
What impedance and connector options does the PRX418S have?
The PRX418S operates at 8 ohms nominal impedance and features dual Neutrik Speakon NL-2 and ¼" TS phone combo connectors wired in parallel, giving you flexibility in how you wire it into your system.
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