18" High Power Subwoofer System

AC118S is a high power subwoofer system comprised of one 457.2 mm (18 in) low frequency driver in a vented, front-loaded configuration for extended bandwidth. The rectangular cabinet is fitted with M10 threaded suspension points for ultimate flexibility. As a part of JBL’s AE Application Engineered Series, a versatile family of loudspeakers for a wide variety of fixed installation applications, AC118S provides a natural low-frequency sound quality.

  • High power and long excursion driver for lower frequency reproduction.
  • High sensitivity with lower power compression
  • Large port for high output and low-frequency reinforcement
  • Multiple Attachment Points for Ultimate Flexibility
  • Robust 15 mm multiply hardwood with textured black finish
Frequency Range (-10 dB)32 Hz - 150 Hz
Frequency Response (±3 dB)40 Hz - 250 Hz
System Sensitivity (1w @ 1m)95 dB
Nominal Impedance8 ohms
Maximum SPL(1m)122 dB (128 dB peak)
Power Rating
450 W/900 W/1800 W
Low frequency driver1x 18″ woofer (P/N: 5021800), 457.2 mm (18 in) driver with 75 mm (3 in) voice-coil
Input ConnectorDual Neutrik NL4MP connectors plus covered barrier trip terminals
Enclosure Material15 mm multi-ply hardwood plywood
GrillePowder coated, 1.5mm perforated steel, with acoustically transparent black foam backing
FinishTextured black paint finish. White (-WH) available upon request. Not available with WRC & WRX finish.
Suspension / Mounting12 x M10 threaded suspension points
Dimensions (H x W x D)561 mm x 720 mm x 548 mm 
22.0 in x 28.3 in x 21.5 in
Net Weight32.3 kg (71.2 lbs)

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