JBL AC118S - 1800W 18-inch Passive Front Loaded Installation Subwoofer in Black Finish

The JBL Professional AC118S is a high-power, 18-inch passive front-loaded subwoofer designed to provide exceptional low-frequency performance for a wide variety of fixed installation applications. As part of JBL's AE Application Engineered Series, the AC118S is crafted to deliver deep, accurate, and extended bass reproduction, making it an ideal solution for large venues, concert halls, theaters, and other professional environments where powerful and precise low-end sound is required. The AC118S features a vented, front-loaded configuration that ensures maximum low-frequency reinforcement, making it capable of handling high output while maintaining sound clarity even in challenging acoustical environments.

The AC118S is equipped with a high-power 18-inch low-frequency driver, designed to handle extended excursion for optimal low-frequency reproduction. This driver, with its 75mm (3-inch) voice coil, provides high sensitivity with lower power compression, allowing it to produce louder bass without sacrificing detail or clarity. The system's large port design ensures efficient airflow for enhanced low-end response, minimizing distortion even at high volumes. This design, combined with the subwoofer's powerful driver, allows the AC118S to achieve an impressive maximum SPL of 122 dB (128 dB peak), ensuring that it can fill large spaces with deep, impactful bass.

With a robust 18 mm multi-ply hardwood enclosure, the AC118S is designed for durability and resonance-free performance. The subwoofer's textured black paint finish ensures it can withstand the rigors of daily use, while also blending seamlessly into a variety of installations. The enclosure is equipped with 12 M10 threaded suspension points, offering flexibility for installation in a wide range of environments. Whether mounted on a wall, ceiling, or placed on the ground, the AC118S provides optimal sound coverage and reliable performance. The powder-coated, 1.5mm perforated steel grille, with acoustically transparent black foam backing, protects the driver while maintaining optimal acoustical transparency, ensuring that the full low-frequency potential is realized without any obstruction.

The AC118S is designed to be flexible in terms of connectivity, featuring dual Neutrik NL4MP connectors and covered barrier strip terminals for secure and reliable signal input. The subwoofer's system power rating is 600W continuous and 2400W peak, providing the power needed to produce high-output bass. Additionally, the AC118S is engineered with a long-term power rating of 450W continuous, 900W program, and 1800W peak, ensuring that it can handle prolonged use without performance degradation. For ease of integration with other systems, the AC118S is compatible with a variety of accessories, such as the MTU-28 U-bracket, and can be used with mounting kits for versatility in positioning.

Features

• 18-inch passive front-loaded subwoofer delivering deep, accurate bass for large-scale installations
• High-power 18-inch woofer with 75mm (3-inch) voice coil for high sensitivity and minimal power compression
• Vented, front-loaded configuration for extended bandwidth and low-frequency reinforcement
• Frequency range: 32 Hz - 250 Hz (-10 dB), frequency response: 40 Hz - 250 Hz (+/- 3 dB)
• Maximum SPL: 122 dB (128 dB peak) for high-output performance in large environments
• Power rating: 450W continuous, 900W program, 1800W peak (AES power rating: 600W continuous, 2400W peak)
• 18 mm multi-ply hardwood construction with durable textured black paint finish
• Powder-coated, 1.5mm perforated steel grille with acoustically transparent foam backing for driver protection
• 12 M10 threaded suspension points for flexible mounting options in various installations
• Dual Neutrik NL4MP connectors and barrier strip terminals for secure and reliable connections
• Dimensions: 21.5 x 22.0 x 28.3 inches (H x W x D); weight: 71.2 lbs
• Shipping dimensions: 22.25 x 14.12 x 16.5 inches; shipping weight: 39.92 lbs
• Optional accessories: MTU-28 U-bracket and M8 x 38mm Tee Knot Thumbscrew Kit for versatile mounting solutions

Specifications

System

• Frequency Range (-10 dB): 32 Hz - 250 Hz
• Frequency Response (±3 dB): 40 Hz - 250 Hz
• System Sensitivity (1W @ 1m): 95 dB
• Nominal Impedance: 8 ohms
• Maximum SPL (1m): 122 dB (128 dB peak)
• Power Rating (Continuous/Program/Peak): 450 W / 900 W / 1800 W
• 2 hr Power Rating: 600W (2400W peak), 2 hrs
• System Power Rating (AES): 600W (2400W peak)

Transducers

• Low Frequency Driver: 1 x 18" woofer (P/N: 5021800), 459 mm (18 in) driver with 75 mm (3 in) voice-coil

Physical

• Input Connector: Dual Neutrik NL4MP connectors plus covered barrier trip terminals
• Enclosure: 18 mm multi-ply hardwood plywood
• Grille: Powder coated, 1.5mm perforated steel, with acoustically transparent black foam backing
• Finish: Textured black paint finish. White (WH) available upon request. Not available with WRC & WRX finish.
• Suspension / Mounting: 12 x M10 threaded suspension points
• Dimensions: 21.5 x 22.0 x 28.3 inches
• Net Weight: 71.2 lbs
• Optional Accessories: MTU-28 U-Bracket, 365469-001 M8 x 38mm Tee Knot Thumbscrew Kit for use with BMB-200k or K&M 195/8 stand mount accessory