JBL PRX425

Dual 15" 2-way PA speaker

Item #: 855PRX425

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Big fish

JBL designed their PRX400 Series passive speakers with the high power handling and extended frequency response required by nightclubs, DJs, churches, concerts, and other applications. These speakers house JBL's road-tested components in rugged, road-worthy enclosures, so you can expect reliable performance night after night.  

JBL PRX425 PA speaker

The dual 15" configuration makes this speaker a great choice for people who don't want to use a sub.

Big ripples

The PRX 400 Series PRX425PA speaker features two 15" low-frequency drivers and a 1" compression driver with a polymer diaphragm for high performance and system reliability. The high-frequency driver uses a 90º x 50º horn for even coverage throughout the room, and JBL's SonicGuard technology protects the high-frequency driver from damage caused by excessive sound levels. The added lows produced by the two 15" speakers make the PRX425 a great option for DJs, bands, and other users who need big bass without the added complications of a subwoofer.

Big trophy

The PRX425's rugged wood enclosure features an 18-gauge steel grille and glass-filled nylon handles. Twelve M10 suspension points allow for a variety of placement options. The PRX425 will handle up to 1200 watts program, and up to 2400 watts peak, so it'll stand up to the most demanding applications. Whether for sound reinforcement or sidefill monitoring, the PRX425 offers the performance and durability that JBL is known for.

Highlights:

  • 2-way PA speaker
  • two 15" low-frequency drivers
  • 1" compression driver with polymer diaphragm
  • rugged birch/poplar laminate cabinet with steel grille and glass-filled nylon handles
  • handles 1200 watts program, 2400 watts peak
  • twelve M10 suspension points
Electronic features:
  • frequency range: 61-16,000 Hz
  • max SPL: 128 dB continuous (134 dB peak)
  • impedance: 4 ohms
  • crossover frequency: 2.2 kHz
  • 1/4"/Speakon® input and output
General features:

How do I find the right amp for a PA speaker?

PA systems work like any other audio system: send as much power as the speaker can handle, and you'll get the best possible sound quality at all dynamic levels. More power yields deeper, richer, and more satisfying sound -- even at low volumes. It's actually easier to damage speaker components with distortion from cranked-up low power than it is from clean high power. For PA equipment specifically, you can safely use an amplifier whose continuous power output is rated up to double the rated program power capacity of the speaker.

Hands-on research

What's in the box?

Download owner's manual

  • PA loudspeaker

Features and Specs

General
Drivers per speaker 3
Woofer Size (inches) 15"
Tweeter Size (inches) 1
System Frequency response 61Hz-16kHz
Maximum SPL 128
Impedance 4
Inputs 2 x 1/4", Speakon
Width (inches) 16-15/16
Height (inches) 41-1/8
Depth (inches) 20-1/2
Weight 46 lbs

Product Research

Features

Applications: The JBL PRX425 is a portable, two-way speaker system designed for either main sound reinforcement or monitoring applications.

Two-Way Speaker Design: The PRX425 employs two 15" low frequency drivers and 1" high frequency compression driver coupled with an integrated waveguide which provides superior coverage control (90° H x 50° V), reduced distortion, and smoother frequency response.

SonicGuard HF Protection: Integrated SonicGuard protection circuitry shields the high frequency compression driver from excess power without interrupting the speaker's performance.

DuraFlex Enclosure: The JBL PRX425's cabinet features a tough DuraFlex finish with a heavy-duty 16AWG protective steel grille to protect the speaker components.

Input/Output Connectors: The PRX425 speaker is fitted with a Speakon NL2 combo-connector which accepts both the NL2 and 1/4" TS phone plug connectors. There is also a parallel identical Speakon NL2 combo connector that facilitates a loop-through connection so you can daisy-chain and power an additional speaker.

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