For those who prefer the simplicity of a self-powered subwoofer, there's the JRX118SP. JBL started with the same woofer used in the non-powered JRX118S and added a specially designed amplifier with 500 watts (peak) and 300 watts (continuous) power output.

Features:

• Dual inputs with balanced XLR connectors.
• A built-in stereo crossover network - great for systems with EON or other powered satellite speakers.
• Peak limiter that protects the amplifier and speaker from clipping.
• Frequency Range (-10 dB): 38 Hz - 300 Hz
• Frequency Response (+/- 3 dB): 55 Hz - 300 Hz
• Amplifier Power : Peak: 500 watts: Continuous: 300 watts with andlt;0.2% THD
• Maximum SPL: 123 dB
• Dimensions (H x W x D): 597 mm x 516 mm x 597 mm
• (23.5 in x 20.3 in x 23.5 in)
• Weight: 40.4 kg (89 lbs)
• Low Frequency Driver: JBL 2043-G
• Input Connectors: XLR/M (x2) (line level, balanced): 1/4'' TS phone jack (x1) (speaker level)
• Output Connectors: XLR/F (x2) (Selectable, Thru or High Pass)