JBL PRX718XLF 18" Self-Powered Extended Low Frequency Subwoofer System
The PRX718XLF is the next step in the highly successful PRX Series and introduces the first use of JBL’s patented Differential Drive Technology with ferrite drivers. Differential Drive technology incorporates lower mass in the ferrite magnet for reduced weight while maximizing power amp efficiency for greater heat dissipation and increased power handling. Powering the PRX718XLF is a 1500 Watt high performance, exceptionally low distortion biampli?cation system engineered to deliver clean power with maximum headroom to efficiently deliver rich, deep bass response even at very high sound power levels. Compact, ultra-lightweight, the PRX718XLF uses JBL’s tour tested technology throughout so you can trust it to deliver a lifetime of reliable performance.
134 dB peak SPL
18" Differential Drive® low-frequency driver for low-distortion and higher SPL
Internal Crossover Frequency : 90 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, Red 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 2278G 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)