18" Self-Powered Extended Low Frequency Subwoofer System
The PRX718XLF, extended low frequency subwoofer was designed and engineered to provide sub bass frequencies with accuracy and power. Used as a single sub in a sub/sat system or in multiples as part of a scalable, large format sound reinforcement system, the PRX718XLF performs with extreme efficiency and control.134 dB peak SPL
18" Differential Drive® low-frequency driver for low-distortion and higher SPL
Efficient Class-D amplifier technology
DSP Input limiter circuit, crossover, dynamic limiting, component optimization, selectable system EQ
Integrated stereo pass-thru, with selectable HP filter, and polarity reverse
2 x XLR-1/4" combination inputs, with 2 x XLR loop-thru
20 mm threaded pole socket for solid, secure satellite speaker mounting.
Multiple handles with comfort rubber grips for easy transport
Lightweight poplar plywood cabinets made structurally sound with tongue and groove joints and protected by JBL’s tour proven DuraFlex™finish.
Cloth backed, dent-resistant 16 gauge steel grilles
Power Rating 1500 W
AC Power Input 100V - 240V~ 50/60 Hz
Frequency Range (-10 dB) 30 Hz - 103 Hz
Frequency Response (±3 dB) 35 Hz – 87 Hz
Internal Crossover Frequency 100 Hz DSP controlled 48 dB filter slope
Loop out Crossover Frequency 120 Hz analog 24 dB filter slope
Maximum SPL 134 dB peak
Signal indicators Limit: Yellow LED indicates peak output has been reached and dsp limiter is acting Signal: Green LED indicates signal present Power/Standby: Blue indicates system has power and ready to pass audio, Re indicates system has power but is in a power saving mode and will not pass audio.
Dynamic Control (Input) dbx Type IV™ limiter circuit
Input Impedance 20K Ohms (balanced)
Polarity normal or reverse polarity
LF Driver 1 x JBL 2278H 460 mm (18 in) woofer
Enclosure Rectangular, 18 mm, plywood
Suspension / Mounting M20 threaded pole socket on top
Transport 2 x injection molded handles with backing cup
Finish Obsidian DuraFlex™ finish
Grille Powder coated, Obsidian, 16 gauge perforated steel with acoustical transparent black cloth backing.
Input Connectors Two Balanced female XLR/ 1/4" combo connectors
Output Connectors Two balanced male XLR connectors.
Dimensions (H x W x D) 690.372 mm x 523.24 mm x 723.9 mm (27.18 in x 20.60 in x 28.50 in)
Net Weight 36.8 kg (81 lb.)