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JBL PRX725

PRX700 Series dual 15" 2-way powered PA speaker

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  • JBL PRX725

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  • JBL PRX725

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  • JBL PRX725

    Grille removed

 

Our take on the JBL PRX725

by Buck Pomerantz
JBL Pro

How loud do powered PA speakers play?

If you're considering powered speakers, you might be tempted to compare wattage ratings, but those won't be very helpful to you: these self-contained systems are engineered to precisely match their built-in amps with their speakers in order to get the most output possible. We suggest you pay more attention to the listed sound pressure level (SPL) ratings than the listed wattage ratings. These boxes are all designed to play loud and clear in appropriately matched room sizes. Generally, powered PA speakers work best in small to medium venues, like nightclubs, coffeehouses, and small auditoriums. If you're performing in larger venues, you'll probably need separate power amps and speakers.

High power for some serious sound

A single JBL PRX725 PA speaker puts out up to 1,500 watts producing a massive 139 dB of sound pressure — that's enough power to fill a small club or 300-seat auditorium with loud, wall-vibrating sound and music all by itself. You could also use this versatile speaker for speech or acoustic music in a venue twice that size. If you're a church performer, a working band, or a DJ, you can match up a pair of PRX725s with a couple of PRX715XLF or PRX718XLF powered subwoofers, and you'll have yourself a strong, versatile full-range PA system that can handle medium-size venues and many outdoor gigs.

Road-tested components

JBL PRX725

PRX725 with grille removed

The 15" low-frequency drivers in the PRX725 are the same ones that JBL uses in its top-of-the-line concert arrays. Each Differential Drive® woofer puts out high-powered sound with low distortion, having proven its toughness on the road by standing up to constant high-volume play. The high-frequency driver with its JBL-designed compression horn and waveguide covers a wide area with crystal-clear, accurate sound.

A built-in dynamic limiter by dbx ensures that an unexpected overload won't damage the speakers. A 2-channel mixer lets you hook your PRX725 up to a variety of sources for different situations, from using a single microphone to address a conference, to playing the stereo signal from a DJ mixer.

Rugged enclosure

JBL used tongue-and-groove construction to build this solid poplar enclosure, then coated it with their tough DuraFlex™ finish. You can be sure this speaker will survive the normal bumps and bangs of life on the road and play reliably on the job every night. You can set a PRX725 on stage as a front-of-house PA speaker or as a side-fill stage monitor. An onboard EQ lets you switch from a flat response to one with enhanced highs and lows, which adds excitement to the mix. 

See more info on this item

Highlights:

    2-way Powered PA Speaker
    • two JBL 275 Differential Drive® 15" woofers
    • JBL 2408H-2 high-frequency compression driver with 1.5" annular polymer diaphragm
    • maximum output level: 139 dB SPL
    • maximum output power: 1,500 watts
    • nominal coverage: 90-degrees horizontal, 50-degrees vertical
    • frequency response: 49-17,000 Hz
    • poplar plywood bass-reflex enclosure with tongue-and-groove joints and DuraFlex™ finish
    Electronic Features
    • 2-channel mixer with individual level controls
      • channel 1: XLR/1/4" TRS phone balanced input (with mic/line switch)
      • channel 2: XLR/1/4" TRS phone balanced line-level input (with ground lift switch)
      • two RCA unbalanced line inputs (ch 1 and ch 2)
      • XLR output for connecting another speaker system (ch 1, ch 2, or mix)
    • speaker input selector (ch 1, ch 2, or mix)
    • DSP includes input limiting, and component optimization
    • selectable EQ: Normal (flat) or Boost (enhanced highs and lows)
    • crossover frequency: 2,400 Hz
    • 500 watts x 3 Class D amplifier
    • dbx Type IV™ dynamic limiter with indicator light
    General Features
    • steel speaker grille and injection-molded glass-filled nylon handles
    • rigging points for hanging or mounting with optional mounting hardware
    • weight: 82 lbs
    • dimensions: 17-9/16"W x 42-3/16"H x 21-3/16"D
    • warranty: 3 years
    • Our 60-day money-back guarantee

    Hands-on research from the Crutchfield Labs (what are the Labs?)

    Features and Specs
    Speakers
    Drivers per speaker
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    3
    Woofer Size (inches)
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    15(2)
    Tweeter Size (inches)
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    1.5
    System Frequency response
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    49Hz-17kHz
    Maximum SPL
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    139
    Electronics
    RMS Power rating
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    750
    Program Power rating
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    N
    Peak Power rating
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    1500
    Mic Inputs
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    2 x XLR/1/4" combo
    Line Inputs
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    2 RCA
    Tone Controls
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    Limiter, Xover, EQ
    General
    Width (inches)
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    17-9/16
    Height (inches)
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    42-3/16
    Depth (inches)
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    21-3/16
    Weight
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    82 lbs
    Product Research
    What's in the box?

    Download owner's manual

    • Powered PA speaker
    • AC power cord

    Our Product Research Team

    At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

    Features

    High Performance Drivers: The JBL PRX725 powered loudspeaker is comprised of two 15" Differential Drive woofers and 1.5" annular polymer diaphragm, neodymium compression driver mounted to a 90° (h) by 50° (v) horn. Wide coverage angles are achieved without compromise and harmonic distortion is minimized for maximum driver SPL without harshness. The sound is smooth and consistent without hotspots so control is optimized.

    Bi-Amplification: Powering the PRX725 is a 1500-watt (750 watts RMS) high performance, exceptionally low distortion bi-amplification system engineered to deliver clean power with maximum headroom to efficiently deliver smooth high frequencies and rich, deep bass response even at very high sound power levels. Main & Monitor user selectable EQ presets are provided.

    Rugged Enclosure: The PRX725's enclosure is 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. The cabinet is protected by JBL's tour proven DuraFlex finish and 16AWG steel grille. Light-weight glass-filled nylon handles ensure portability. All M10 suspension points are constructed from 14 gauge steel and have been tested with a yield-strength of 1000 lbs. each.

    Inputs/Outputs: A combo-connector offers XLR and 1/4" TRS phone jack compatibility. Selectable input sensitivities allow a broad range of devices to be properly matched, from the output of a mixer to an MP3 player or a dynamic microphone. There is also a stereo line-level RCA input. A balanced XLR loop through output connector enables the simple "daisy-chaining" of additional PRX series powered speakers if more coverage and level is required.

    Mounting Options: The universal mounting capabilities make the PRX725 perfect for live performers, fixed installations, or commercial A/V rental companies. Whether you use the speaker on a tripod stand (36mm socket), mounted on a subwoofer with a pole, in the floor monitor position, or in a fixed position suspended by the M10 points, you can count on superior and reliable performance.

     
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