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JL Audio  MX500/4

MX Series 4-Channel 125W RMS x 4 at 2 Ohms, Class-D Marine Amplifier

Item #46512

Condition:   Brand New

Product Highlights

  • MX Series
  • 4-Channel
  • 125W RMS x 4 at 2 Ohms
  • Class-D
  • Marine Amplifier

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

$529.99

Add Extended Warranty
  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

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JL Audio MX500/4 MX Series 4-Channel 125W RMS x 4 at 2 Ohms, Class-D Marine Amplifier


We are a JL Audio authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • MX Series 4-Channel Class-D Marine Amplifier
  • • 4-Channel marine amplifier with 12" power/signal pigtails
  • • (4) Self-tapping screws (1" length)
  • Owner's Manual

 


Why Choose JL Audio MX500/4 Marine Amplifier?


 

JL Audio MX500/4 Marine Amplifier Right Angle View
Unbeatable Performance and Versatility for Powersports Audio

Experience unbeatable performance with a durable, corrosion-resistant cast aluminum chassis and an IPX7 water-resistance rating, making it perfect for powersports. Enjoy the versatility of a fully bridgeable design, allowing you to use it as a powerful 3-channel or 2-channel amplifier (250W x 2 into 4 ohms). Plus, take control of your sound with independent crossovers featuring selectable full-range, high-pass, or low-pass filters for both front and rear channels.

Seamless Connectivity and Rugged Durability for Long-Lasting Performance

Enjoy seamless connectivity with a dual-range input section that accepts everything from line-level to high-power speaker signals. The rugged, powder-coated finish and gasketed control cover ensure durability and protection against the elements, while stainless steel hardware enhances corrosion resistance for long-lasting performance.

JL Audio MX500/4 Marine Amplifier Top Down View
JL Audio MX500/4 Marine Amplifier Bottom View
Unleash Superior Sound with NexD™ Switching Technology

Experience the MX500/4 Amplifier, equipped with NexD™ Switching Technology for exceptional audio quality and efficiency in a compact design. Engineered for powersports, it delivers clean, powerful sound with minimal distortion and rock-solid bass performance, ensuring your audio experience reaches new heights on any adventure.


Frequently Asked Questions (FAQ)


  • • Why do only my front speakers work after installing the JL Audio MX500/4?
    Check the input routing, channel gains, and speaker wiring. Rear channels often lose signal due to incorrect input configuration.
  • • Can I bridge the MX500/4 to power two high-output marine speakers?
    Yes. The amplifier supports bridged operation as long as the speaker impedance meets JL Audio's specifications.
  • • Why does the amplifier shut off after playing loudly for several minutes?
    This is usually caused by overheating, low battery voltage, or a speaker load below the recommended impedance.
  • • Can I connect the MX500/4 directly to a factory marine stereo?
    Yes. It accepts both RCA and high-level speaker inputs for compatibility with factory and aftermarket head units.
  • • Why do my tower speakers sound much louder than my cockpit speakers?
    Check the gain controls and crossover settings. Different speaker sensitivities may also require separate level adjustments.
  • • Why do I hear engine noise through my speakers while accelerating?
    Poor grounding or signal cables routed alongside power cables are the most common causes of alternator whine.
  • • Can I run four 2-ohm marine speakers on the MX500/4?
    Yes. The amplifier is stable at its recommended minimum impedance per channel when wired correctly.
  • • Why does the Protection LED turn on immediately after connecting my speakers?
    A shorted speaker wire or incorrect wiring is the most common reason for protection mode.
  • • Can I install the MX500/4 in a storage locker on my boat?
    Yes, provided the compartment remains dry and offers enough airflow to keep the amplifier cool.
  • • Why does the amplifier stay powered after I turn off my boat's ignition?
    The remote turn-on wire is likely connected to constant battery power instead of a switched accessory circuit.

SPECIFICATIONS


  • Low Frequency Response : 35-300 Hz
  • High Frequency Response : 35-300 Hz
  • Number of Channels : 4
  • Frequency Response : 20-20000 Hz
  • Built In Crossovers : Yes
  • RMS Power Output : 4x125 Watts
  • Channel Separation : Yes
  • Amplifier Class : D
  • Fuse Rating : 1x50 A
  • Promo : Yes

FEATURES


Features:

  • Power Output: 125 W x 4 @ 2 Ω; 70 W x 4 @ 4 Ω (14.4V, 1% THD).
  • NexD™ Switching Design: Delivers clean power without straining charging systems.
  • Durable Construction: Corrosion-resistant cast aluminum chassis; IPX7 water-resistance rating, perfect for powersports.
  • Versatile Configuration: Fully bridgeable for use as a 3-channel or 2-channel amplifier (250W x 2 into 4 ohms).
  • Independent Crossovers: Selectable full-range, high-pass, or low-pass filters for front and rear.
  • Dual-Range Input Section: Accepts line-level to high-power speaker level signals.
  • Rugged Finish: Powder-coated for durability; gasketed control cover for protection against elements.
  • Stainless Steel Hardware: Provides enhanced corrosion resistance and longevity.

 

Specifications:

  • RMS Power Output (Watts x Channels): 70 x 4
  • Peak Power Output (Watts x Channels): N/A
  • Power at 2 Ohms (Watts x Channels): 125 x 4
  • Power at 1 Ohm (Watts x Channels): ---
  • Bridged Power (Watts x Channels): 250 x 2
  • Minimum Impedance Bridged: 4 Ω
  • Minimum Impedance Unbridged: 2 Ω
  • Minimum Impedance: 2 Ω
  • Best Frequency Response: 20-20 kHz
  • THD at Rated RMS Power: 1%
  • Signal to Noise Ratio: 88 dB
  • Input Voltage: 14.4V
  • Amplifier Class: D
  • Low-Pass Crossover Frequency: 35-300 Hz
  • Low-Pass Slope (dB/octave): 12 dB/oct
  • High-Pass Crossover Frequency: 35-300 Hz
  • High-Pass Slope (dB/octave): 12 dB/oct
  • Bass Boost: No
  • Bass Boost Frequency: N/A
  • Fan Cooled: No
  • Fuse Rating: 50A
  • Speaker Level Inputs: Yes
  • Preamp Outputs: No
  • Width (inches): 9-3/8
  • Height (inches): 1-13/16
  • Depth (inches): 4-9/16
  • UPC: 699440984089
  • Weight: 5
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.

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Write a review!
  • 100% genuine and 100% authentic and a legit buy

    Thomas
    11/11/2019

  • There is much power for its 70Watt rating per channel. Controls can be difficult to control anytime, so you better set it up and let them be if you are not going to replace your speakers anytime soon.

    Ric
    4/16/2024

  • Bought it for my Harley and it works fine. Made my speakers sound better and louder. I can hear them now while I’m riding even at faster speeds.

    Barton
    4/25/2024