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12" 2-way PA speaker/stage monitor

Item #: 855PRX412M

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Strong yet sensitive 

JBL PRX412M speaker system

High-performance JBL drivers allow this speaker to excel as a main speaker or stage monitor.

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.

You're covered

The PRX400 Series PRX412M stage monitor features a 12" low-frequency driver and a 1" compression driver with a polymer diaphragm for high performance and system reliability. The high-frequency driver uses a 90° x 50° horn for even coverage whether the speaker's used on the horizontal or vertical axis. JBL's SonicGuard technology protects the high-frequency driver from damage caused by excessive sound levels.

Go anywhere

The PRX412M's rugged birch/poplar laminate enclosure features an 18-gauge steel grille and a glass-filled nylon handle with a rubber grip. A dual-angle pole mounting socket allows the PRX412M to double as a PA speaker on a tripod for smaller systems, or as a satellite speaker pole-mounted over a subwoofer for DJ systems and bands. Whether for sound reinforcement or stage monitoring, the PRX412M offers the performance and durability for which JBL is known.


  • 2-way stage monitor/PA speaker
  • 12" low-frequency driver
  • 1" compression driver with polymer diaphragm
  • rugged birch/poplar laminate cabinet with steel grille and glass-filled nylon handle
  • dual angle pole socket
  • twelve M10 suspension points
  • power rating: 300 watts continuous, 600 watts program, 1200 watts peak
  • frequency range: 62-19,000 Hz
  • max SPL: 126 dB
  • impedance: 8 ohms
  • crossover frequency: 2 kHz
  • 1/4" and Speakon® input connectors
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.

JBL PRX412M Reviews

Hands-on research

What's in the box?

Download owner's manual

  • PA loudspeaker

Features and Specs

Drivers per speaker 2
Woofer Size (inches) 12
Tweeter Size (inches) 1
System Frequency response 62Hz-19kHz
Maximum SPL 126
Impedance 8
Inputs 1/4", Speakon
Width (inches) 13-15/16
Height (inches) 22-5/8
Depth (inches) 15-3/4
Weight 35 lbs

Product Research


Applications: The JBL PRX412M is a portable, two-way speaker system designed for either main sound reinforcement or monitoring applications.

Two-Way Speaker Design: The PRX412M employs a 12" low frequency driver 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 PRX412M's cabinet features a tough DuraFlex finish with a heavy-duty 16AWG protective steel grille to protect the speaker components.

Input/Output Connectors: The PRX412M 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.

Mounting Options: The PRX412M can simply be placed on the floor for studio monitoring. The speaker also features a dual-angle pole slot (35mm) for applications that require tripod mounting and features twelve M10 suspension points for safe deployment in light duty installations.

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