JBL ASB6128-WH - 6400W 2 x 18-inch Passive Front Loaded Installation Subwoofer in White Finish

The JBL Professional ASB6128-WH is a high-performance, 6400W passive subwoofer designed to deliver powerful, precise low-end frequencies for large-scale sound systems. Featuring two 460 mm (18-inch) JBL 2242H SVG low-frequency drivers, the ASB6128-WH is engineered to provide exceptional bass clarity and output with minimal distortion. The drivers are equipped with 100 mm (4-inch) voice coils and utilize JBL's Super Vented Gap (SVG) technology, optimizing cooling efficiency and enhancing performance by reducing distortion. This subwoofer is designed for applications that require high power and exceptional bass, including performing arts facilities, auditoriums, live clubs, sports arenas, and themed entertainment venues.

The ASB6128-WH features a deep, rectangular enclosure constructed from 16 mm (5/8-inch) exterior-grade 11-ply birch plywood, which provides both strength and acoustic efficiency. The enclosure is finished with JBL's durable white DuraFlex coating, which not only gives the subwoofer a sleek, professional appearance but also protects it from environmental factors, making it suitable for both indoor and outdoor installations. The cabinet's design ensures a minimal frontal profile while allowing for extended low-frequency bandwidth, resulting in exceptional bass performance. The subwoofer is equipped with 12 M10 threaded suspension points (three on the top, three on the bottom, and two on each side and rear), offering flexibility for both ground-stacked and suspended installations. Pre-engineered array bracketry is also available for seamless integration into large arrays with other AE Series loudspeakers.

The ASB6128-WH excels in performance, offering a frequency range of 28 Hz to 1 kHz (-10 dB) and a frequency response of 35 Hz to 1 kHz (±3 dB), ensuring it delivers deep, powerful bass with clarity and minimal distortion. With a transducer power rating of 2400W continuous (9600W peak) for 2 hours and a long-term system power rating of 1600W (6400W peak) over 100 hours, the ASB6128-WH is built to handle demanding applications without compromising sound quality. The subwoofer can produce a maximum SPL of 136 dB (cont avg) and 142 dB (peak) from 30 Hz to 100 Hz, and 136 dB (cont avg) and 142 dB (peak) from 100 Hz to 500 Hz, making it ideal for large venues that require powerful, consistent bass coverage. The system sensitivity of 102 dB at 1W (2.83V) @ 1m ensures high output efficiency, providing robust performance while optimizing power usage.

To offer flexibility in system integration, the ASB6128-WH includes a Parallel/Discrete switchable input mode, allowing users to configure the subwoofer to meet their specific sound system needs. The subwoofer's FIR tuning matches its phase profile with that of full-range models, ensuring smooth and seamless integration into large sound systems. The ASB6128-WH operates with a nominal impedance of 4 ohms in parallel-drive mode and 2 x 8 ohms in discrete-drive mode, making it compatible with a wide range of amplifiers. Input connectors include both NL4 Neutrik Speakon and CE-compliant barrier strip terminals, which accept up to 10 AWG wire or 9 mm (0.375 in) spade lugs. The Speakon connectors are wired in parallel with the barrier strip for loop-through functionality, facilitating simple connections in multi-unit configurations. The ASB6128-WH meets Mil-Std 810 and is rated IP>3 per IEC529, offering dust and water resistance for reliable performance in challenging environments.

Features

• 2 x 18-inch JBL 2242H SVG low-frequency drivers with 100 mm (4-inch) voice coil
• Large vent area for high output with low distortion
• Frequency range: 28 Hz - 1 kHz (-10 dB), frequency response: 35 Hz - 1 kHz (±3 dB)
• Maximum SPL: 136 dB cont avg (142 dB peak) from 30 Hz to 100 Hz
• Maximum SPL: 136 dB cont avg (142 dB peak) from 100 Hz to 500 Hz
• System sensitivity: 102 dB at 1W (2.83V) @ 1m
• Nominal impedance: 4 ohms in parallel-drive mode, 2 x 8 ohms in discrete-drive mode
• Transducer power rating: 2400 W continuous (9600 W peak), 2 hours
• Long-term system power rating: 1600 W (6400 W peak), 100 hours
• Durable enclosure made from 16 mm (5/8 inch) exterior-grade 11-ply birch plywood
• 12 M10 threaded suspension points for flexible mounting
• Finish: White DuraFlex (black finish available upon request)
• Grille: Powder-coated 14-gauge perforated steel with acoustically transparent black foam backing
• Input connectors: NL4 Neutrik Speakon and CE-compliant barrier strip terminals (accepts up to 10 AWG wire)
• Environmental ratings: Mil-Std 810; IP>3 per IEC529 for dust and water resistance
• Dimensions: 43.1 x 22.1 x 32.2 inches
• Weight: 161 lbs
• Optional accessories: M10 x 35 mm forged shoulder eyebolts with washers, U-Bracket MTU-3

Specifications

System

• Frequency Range (-10 dB): 28 Hz - 1 kHz
• Frequency Response (±3 dB): 35 Hz - 1 kHz
• Input Modes: Drivers Parallel / Drivers Discrete
• Transducer Power Rating (AES): 2400 W (9600 W peak), 2 hrs
• Long-Term System Power Rating: 1600 W (6400 W peak), 100 hrs
• Maximum SPL (1m):
  • 30 Hz - 100 Hz: 136 dB-SPL cont avg (142 dB peak)
  • 100 Hz - 500 Hz: 136 dB-SPL cont avg (142 dB peak)
• System Sensitivity (dB-SPL, 1W @ 1m): 30 Hz - 100 Hz: 102 dB, 100 Hz - 500 Hz: 102 dB
• Nominal Impedance: 4 ohms in parallel-drive mode, 2 x 8 ohms in discrete-drive mode

Transducers

• Low Frequency Driver: 2 x JBL 2242H 460 mm (18 in) SVG drivers with 100 mm (4 in) voice coil

Physical

• Enclosure: Rectangular cabinet, 16 mm (5/8 in) exterior grade 11-ply birch plywood
• Suspension Attachment: 12 points (3 top, 3 bottom, 2 each side, 2 rear), M10 threaded hardware
• Finish: Black DuraFlex finish. White available upon request
• Grille: Powder coated 14 gauge perforated steel, with acoustically transparent black foam backing
• Input Connector: NL4 Neutrik Speakon and CE-compliant covered barrier strip terminals. Barrier terminals accept up to 5.2 sq mm (10 AWG) wire or max width 9 mm (.375 in) spade lugs. Speakon in parallel with barrier strip for loop-through
• Environmental Specifications: Mil-Std 810; IP≥3 per IEC529
• Dimensions: 43.1 x 22.1 x 32.2 inches
• Net Weight: 161 lbs
• Optional Accessories: M10 x 35 mm forged shoulder eyebolts with washers, U-Bracket MTU-3