JBL Professional PRX718XLF

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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.

特点

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

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 exceptional efficiency and control. The subs are stackable and light-weight ensuring quick set-ups and tear-downs. And due to their rugged construction are perfect for AV rental inventories. With a pole receptacle (that accepts a SS4-BK or SS4-BK24) on the top panel and integrated stereo pass-thru this is the most powerful low-frequency complement to the PRX full-range systems. The addition of a polarity reverse option further enables system optimization.
The PRX718XLF is a high performance self-powered subwoofer system. The PRX718XLF is comprised of a powerful 2278H Differential Drive® dual voice-coil and magnetic gap, woofer driven by a 1500 Watt Class-D power amplifier. Sophisticated DSP is at the core of a fully featured input section, providing user selectable cross-over functionality, polarity optimization, protection, dynamic limiting and discrete component optimization.
All PRX700 cabinets are built from a combination of 25mm (on the top and bottom for added rigidity) and 18mm, strong, light-weight poplar plywood made structurally sound with tongue and groove joints. All PRX700 Series cabinets are protected by JBL’s tour proven DuraFlex™ finish. Grilles are made from dent-resistant 16 gauge steel and handles are made from light-weight glass-filled nylon for added strength and durability.
The amplifier input panel offers stereo inputs with XLR or ¼ inch jack compatibility. A user selectable crossover ensures a smooth transition to full-range system connected to the stereo outputs. Signal present and limiter lights indicate the system status and assist in setting the optimum level via the level control knob.

下载

	Version	Language	Size	Uploaded
PRX718XLF Data Sheet updated: 5月 2023			2.5 MB	5月 2023
PRX718XLF Spec Sheet updated: 5月 2023			938.0 KB	5月 2023
PRX718XLF User's Guide - English updated: 5月 2023			2.0 MB	5月 2023
PRX718XLF User's Guide - French updated: 5月 2023			898.5 KB	5月 2023
PRX718XLF User's Guide - German updated: 5月 2023			906.0 KB	5月 2023
PRX718XLF User's Guide - Spanish updated: 5月 2023			779.5 KB	5月 2023
Data Sheets
PRX718XLF Datasheet updated: 7月 2019			2.5 MB	7月 2019
Specifications
PRX718XLF Spec Sheet updated: 7月 2019			938.0 KB	7月 2019
Brochures
Portable Sound Full Line 2015 Catalog updated: 10月 2020			2.5 MB	10月 2020
CAD Drawings
PRX700 2D Drawings PDF updated: 10月 2020			704.2 KB	10月 2020
PRX700 2D Drawings CAD updated: 10月 2020			6.4 MB	10月 2020
Compliances
PRX700 Declaration of Conformity updated: 10月 2020			133.1 KB	10月 2020
User Guides
PRX700 Users Guide updated: 10月 2020			2.0 MB	10月 2020
PRX700 Users Guide Spanish updated: 10月 2020			779.5 KB	10月 2020
PRX700 Users Guide French updated: 10月 2020			898.5 KB	10月 2020
Images
PRX718XLF Back updated: 7月 2019			295.4 KB	7月 2019
PRX718XLF Angle No Grill updated: 7月 2019			256.5 KB	7月 2019
PRX718XLF Front Angle updated: 7月 2019			366.0 KB	7月 2019
Accessories
PRX700 Users Guide German updated: 10月 2020			906.0 KB	10月 2020

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Parts & Service

性能

额定功率	1500 W
AC power input	100V - 240V~ 50/60 Hz
频率范围 (-10dB)	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 (1m)	134 dB peak
Signal Indicators	Limit: Yellow LED indicates peak output has been reached and dsp limiter is actingSignal: Green LED indicates signal presentPower/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
输入阻抗	20K Ohms (balanced)
极性	normal or reverse polarity
低频驱动单元	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
外观颜色	Obsidian DuraFlex™ finish
网罩	Powder coated, Obsidian, 16 gauge perforated steel with acoustical transparent black cloth backing.
输入接口	Two Balanced female XLR/ 1/4" combo connectors
输出连接器	Two balanced male XLR connectors.
尺寸（高 x 宽 x 厚）	690.372 mm x 523.24 mm x 723.9 mm (27.18 in x 20.60 in x 28.50 in)
净重量	36.8 kg (81 lb.)