JBL PRX 418S
Professional music gear - detailed information and where to buy
JBL
PRX 418S
Product Info
* Prices may vary. Check retailer for current pricing and availability.
The PRX 418S is a serious subwoofer – it’ll shake the floor. It's built like a tank, with that classic JBL reliability, and delivers genuinely powerful low-end. Perfect for DJs, live bands needing serious bass reinforcement, or anyone wanting a club-like vibe for events.
Product Description
- JBL PRX 418S
- Passive Subwoofer
- Speaker: 18"
- Impedance: 8 Ohm
- Power rating: 800 W Continuous / 1600 W Program / 3200 W Peak
- Frequency range: 35 - 250 Hz
- Peak SPL: 130 dB
- Connectors: 2x Speaker twists
- Dimensions: 678 x 536 x 615 mm
- Weight: 36 kg
PROS
- • Robust birch ply construction lends excellent cabinet resonance.
- • High-power handling provides substantial headroom for demanding applications.
- • 18-inch woofer delivers deep, impactful low-frequency extension.
- • JBL's transducer design ensures clarity and minimal distortion at high output.
CONS
- • Significant weight makes transport and setup a two-person job.
- • Limited frequency response above 250 Hz requires pairing with full-range speakers.
- • Passive design necessitates a powerful amplifier for optimal performance.
Product Video
Key Features
Power Handling
800 W Continuous / 1600 W Program / 3200 W Peak
Woofer Size
18 in
Impedance
8 Ohm
Frequency Range
35 - 250 Hz
Sensitivity
98 dB SPL (1W @ 1m)
Weight
36 kg
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Frequently Asked Questions
The QSC KW181 is a close competitor; the JBL generally offers slightly more low-end extension, while the QSC might have a marginally tighter feel – it’s a matter of preference really.
While it’s powerful, you’ll definitely need full-range speakers to cover the higher frequencies. It's designed to be part of a larger system, not a complete solution on its own.
Given the 8-ohm impedance, a power amplifier delivering 1500-2500 watts RMS would be ideal to fully utilize the PRX 418S’s capabilities.
