18" CompactSubwoofer


18" Compact Subwoofer

The JRX118S is driven by a massive JBL 18" woofer with a cast frame and 3" voice-coil.



  • 18 in. compact subwoofer.
  • 350 W (continuous), 1400 W (peak) power capacity.
  • The rugged enclosure is constructed from 19 mm (.75 in) MDF (Medium Density Fiberboard) using advanced adhesives and mechanical fastener technology for durability and improved low-frequency performance. The enclosure is covered in black carpet.
  • A top mounted, cast aluminum 35 mm pole mount receptacle can receive an optional SS3BK pole to facilitate use of the JRX118SP as a base for a midhigh speaker cabinet.
  • Non-resonant, all steel handles are used.
  • Attractive 18-gauge perforated steel grille protects components from damage.
  • 35 mm pole mount receptacle for use with satellite speakers.


  Version Language Size Uploaded
file type icon JRX118S Spec Sheet
updated: 10月 2020
    201.2 KB 10月 2020
file type icon JRX Brochure
updated: 10月 2020
    1.5 MB 10月 2020
file type icon JRX100 Series Declaration of Conformity
updated: 10月 2020
    90.4 KB 10月 2020
file type icon JRX118S Front
updated: 10月 2020
    588.9 KB 10月 2020

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Parts & Service


额定功率 350 W / 1400 W
频率范围 38 Hz - 300 Hz (-10 dB)
尺寸(高 x 宽 x 厚) 597 mm x 516 mm x 559 mm (23.5 in x 20.3 in x 22 in)


55 Hz - 300 Hz (±3 dB)


96 dB SPL
Nominal Impedence 4 ohms
Recommended Amplifier Power 350 W to 700 W into 4 ohms
Recommended Crossover Settings 30 Hz HPF, 24 dB / octave; 80 - 100 Hz LPF, 24 dB / octave
Maximum SPL (1m) 127 dB
重量 32.2 kg (71 lb)
低频驱动单元 JBL 2043-G
输入接口 Neutrik® Speakon® NL-4 (x1); .25 in TS phone jack (x1); parallel


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