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JBL MRX528S Dual 18 Portable Subwoofer System The JBL MRX528S Dual 18" Bass Reflex Subwoofer is a high-powered, vertically oriented system supported by two 18" woofers. The upright format allows for convenient stacking of full range speakers on top without the use of a mounting pole. The entire unit is housed in a sturdy wood enclosure covered by a rugged DuraFlex finish. This front-loaded, vented enclosure is designed so a minimum front area is exposed to the audience. It also features a pole-mount socket so you can use it to mount other speakers. This subwoofer also has pins +1/-1 for chaining other speakers to this unit. It's the perfect subwoofer for live performances or mobile and fixed DJ applications. Specifications: Active or Passive | Passive |  | Frequency Response | 40 - 250 Hz | | Power Capacity | 1000W continuous, 2000W program, 4000W peak | | Maximum Sound Pressure Level (SPL) | 133 dB SPL continuous | | Nominal Sensitivity | 97 dB | | Impedance | 4 Ohms | | Crossover | 80 - 120 Hz | | Low Frequency Driver | (2) 18" Woofers (JBL 2044H) | | High Frequency Driver | N/A | | Enclosure Material | 15/18 mm plywood with Black Duraflex finish
Powder-Coated 16-Gauge Perforated Steel Grille | | Input Connections | 2 Neutrik NL4 Speakon | | Dimensions | 21 x 43 x 27.5" (535 x 1095 x 700 mm) | | Weight | 121 lbs (55 kg) | | 
