JBL JRX118S speaker 18" Compact Subwoofer. The JBL JRX118S is driven by a massive JBL 18" woofer with a cast frame and 3" voice-coil. It's rated at 350 watts (continuous) and 1400 watts (peak) - and that's based on JBL Professional's 100 hour torture test.

Specifications

• Frequency Range (-10 dB): 38Hz - 300 Hz
• Frequency Response (±3 dB): 55Hz - 300 Hz
• Sensitivity: 96dB SPL
• Nominal Impedence: 4 ohms
• *Power Capacity: 350 watts
• *Peak Power Capacity: 1400 watts
• Recommended Amplifier Power: 350 watts to 700 watts into 4 ohms
• Recommended Crossover Settings: 30Hz HPF, 24 dB / octave; 80 - 100 Hz LPF, 24 dB / octave
• Maximum SPL: 127dB
• Dimensions (H x W x D): 597mm x 516 mm x 559 mm (23.5 in x 20.3 in x 22 in)
• Weight: 32.2kg (71 lbs)
• Low Frequency Driver: JBL2043-G
• Input Connectors: Neutrik® Speakon® NL-4 (x2); ¼" TS phone jack (x1); parallel

* "Power Capacity" and "Peak Power Capacity" ratings are based on the average and peak power capacity of product samples subjected to a 100 hour power test using random noise with a 6 dB crest factor, in accordance with IEC standards.

JRX100 delivers the performance and prestige JBL is known for at an affordable price point. To meet these conflicting design goals, we looked at every element of the speaker system design. We kept everything that makes a speaker perform and sound its best and we eliminated things that don't. With performance, value and popular price points, we are going to be building a lot of JRX100 speakers. This means we can apply efficient, high-volume production methods and purchase materials at the lowest cost. That's how JRX100 delivers unprecedented value.

Progressive Transition™ Waveguide
Just one example of JBL's innovation is the PT™ Waveguide design. For decades, horn designers were faced with trade-offs between well controlled coverage, low distortion, and good frequency response. JBL developed proprietary algorithms which give our PT Waveguides the best performance in all three areas.

Hardware
JRX100 doesn't scrimp on the hardware either. All the JRX models use tough, non-resonant all-steel handles with big, beefy bars. And the entire baffle (not just the woofer) is protected by an 18 gauge steel grille.

JBL Drivers
All woofers and compression drivers used in JRX100 are manufactured in Northridge, California by JBL Professional.

Enclosure Construction
Competitive systems typically use particle board construction and rely entirely on glue to hold it together. For JRX100, we selected a more rugged and acoustically superior 3/4" MDF material for the enclosures. And to make sure they stay together, we constructed them with advanced adhesives and closely spaced mechanical fasteners. Not only are the cabinets rugged, but the denser enclosure walls are more riged, delivering better low end as a result

SonicGuard™
Feedback, dropped microphones, pushing the amps into clipping - all these things can quickly destroy even the best high-frequency drivers. That's why JBL JRX100 speakers include SonicGuard™ protection. SonicGuard circuitry absorbs excess energy without interrupting the performance. No circuit breakers to reset, no fuses to replace and no "poly-switches" to degrade sound quality.