JBL Pro - ASB4128 Passive Subwoofer - Used

The JBL ASB4128 is a medium power subwoofer system (Black) comprised of two 460 mm (18″) low frequency drivers in a front-loaded, vented configuration. The deep, rectangular cabinet allows for extended low frequency bandwidth with minimum frontal profile. The enclosure is fitted with M10 threaded suspension points. Pre-engineered array bracketry is available.

The ASB4128 is part of JBL’s AE (Application Engineered) series, a versatile family of speakers for a wide variety of applications.

JBL’s ASB4128 is a front-loaded, medium power subwoofer system with a vented configuration. It’s comprised of two 460 mm (18″) low frequency drivers, and it’s deep, rectangular cabinet allows for extended low frequency bandwidth with minimum frontal profile.

JBL ASB4128 Medium Power Subwoofer 2 x18″ 2042H Drivers Applications:

• Performing arts facilities
• Theatrical sound design
• Auditoriums
• Houses of worship
• Live clubs
• Dance clubs
• Sport facilities
• Themed entertainment venues

JBL ASB4128 Medium Power Subwoofer 2 x18″ 2042H Drivers Features:

• Large vent area for high output
• Parallel/Discrete switchable

JBL ASB4128 Medium Power Subwoofer 2 x18″ 2042H Drivers Specifications:

• 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): 1000W (4000W peak), 2 hrs
• Long-Term System Power Rating (IEC): 600W (2400W 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 Ω in Parallel-drive mode
  • 2 x8 Ω in Discrete-drive mode