The 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.

Features:

• Frequency Range (-10 dB): 38 Hz - 300 Hz
• Frequency Response (+/-3 dB): 55 Hz - 300 Hz
• Sensitivity : 101 dB 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: 30 Hz HPF, 24 dB / octave; 80 - 100 Hz LPF, 24 dB / octave
• Maximum SPL: 127 dB
• Dimensions (H x W x D): 597 mm x 516 mm x 559 mm (23.5 in x 20.3 in x 22 in)
• Weight: 32.2 kg (71 lbs)
• Low Frequency Driver: JBL 2043-G
• Input Connectors: Neutrik Speakon