QUARTZ 1600 Watt Quad 18" Subwoofer System Cabinet: 3/4" 13-ply birch Low Frequency Transducer: 4 - 18" bass cones Crossover Network: Requires ELF™ integrator Power Hangling Capacity: 1600 Watts continuous power, 3200 Watts instantaneous peak Sensitivity: 99 dB SPL 1 watt/1meter @ 45 Hertz Finish: Black textured catalyzed urethane Grille: Black powder coated perforated steel in aluminum extruded frame with weather resistant seal Input Connectors - 2 plates with: 2 x 1/4" phone, 2 x Neutrik ML4MP Speakon, 1 Banana Nominal Impedance: 2 - 4 ohm inputs Frequency Response: ± 1dB from 20 Hz to 70 Hz Dimensions: 40"h x 30"w x 30"d Weight: 225 lbs. Call for Our Super-Low Price!!!

QUARTZ The QUARTZ is a very high output concert ELF™ subwoofer system designed to minimize space required to obtain extremely high level low frequency outputs. The compact design incorporating 4 EL-18A 18" transducers offers unserpassed fidelity and SPL output in an enclosure smaller than the traditional 18" designs. The QUARTZ provides perfectly flat response down to 20 Hz when used in conjuction with the ELF integrator. Casters, handles, stand mount adapters (for support of upper range speakers) and optional flying hardware make the QUARTZ the finest all around package for concert subwoofer applications. Permanent installation options are available without hardware.