JBL ASB4128 Dual 18" Passive Subwoofer

The ASB4128 is a medium power dual 18" subwoofer system comprised of two 460 mm (18 in) low frequency drivers in a front-loaded, vented configuration.

The deep, rectangular cabinet allows for extended low frequency bandwidth with minimum frontal profile. 

Main Features

• Large vent area for high output
• Parallel/Discrete Switchable
• Medium power subwoofer system
• Two 460 mm (18 in) low frequency drivers in a front-loaded
• Vented configuration
• Extended low frequency bandwidth with minimum frontal profile

Product Specifications

General

• Frequency Range: 30 Hz – 1 kHz (-10 dB)
• Frequency Response: 40 Hz – 1 kHz ( ± 3 dB)
• Input Modes: Drivers Parallel / Drivers Discrete
• Transducer Power Rating (AES): 1000 W (4000 W peak), 2 hrs
• Long-Term System Power Rating (IEC): 600 W (2400 W peak), 100 hrs
• Maximum SPL:
  • 30 Hz – 100 Hz: 133 dB-SPL cont avg (139 dB peak)
  • 100 Hz – 500 Hz: 133 dB-SPL cont avg (139 dB peak)
• System Sensitivity:
  • 30 Hz – 100 Hz: 103 dB
  • 100 Hz – 500 Hz: 103 dB
• Nominal Impedance: 4 ohms in parallel-drive mode 2 x 8 ohms in discrete-drive mode

Manufacturer: JBL