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This product has been discontinued by the manufacturer.

The MRX528S is a compact, portable high-power subwoofer with dual 2044H 18" woofers in a front-loaded, vented enclosure. The enclosure is designed to present a minimum frontal area. It is also configured in an upright format to permit the convenient stacking of full-range enclosures on top without the need for an additional pole. The system offers complete input connection flexibility for compatibility with a variety of cabling schemes. The input panel incorporates a pair of Neutrik Speakon NL-4 connectors wired in parallel. The MRX528S is supplied with pins +1/-1 connected to the woofer. This may be easily reconfigured to work with cabling systems intended to drive subwoofers on pins +2/-2. The enclosure is constructed of quality plywood, coated in JBL's rugged DuraFlex finish and is braced to maximize low-frequency performance. The attractive CNC-machined, 16-gauge steel grille is internally lined with an acoustically transparent screen to provide additional driver protection and give a very professional appearance.

JBL MRX528S Dual 18" Subwoofer Specifications:

  • Frequency range: 35Hz-250Hz
  • Frequency response: 40Hz-250Hz
  • Sensitivity: 97dB SPL; 103dB SPL
  • Nominal impedance: 4 ohms
  • Power capacity (continuous/program/peak): 1000W/2000W/4000W
  • Rated maximum SPL: 133dB SPL (139dB SPL)*
  • Coverage pattern: 70° x 70° nominal
  • Dimensions: 21"W x 43"H x 27.5"D
  • Weight: 121 lbs.
  • *Calculated on half space condition

JBL MRX528S Dual 18" Subwoofer Features:

  • Dual 18" 2044H drivers for extended low-frequency output
  • Large vent area for reduced distortion
  • Vertical orientation for convenient ground stacking
  • Tough DuraFlex finish enclosure

  • Live performance venues
  • Mobile and fixed DJ systems