JL Audio Marine M4500 (MC4500)

500W RMS, 4-Channel M-Series Marine Amplifier

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The product on this page is discontinued, but there is a newer model available:
Newer Model: JL Audio M400/4
JL Audio M400/4 thumbnail
$379.95 Backorder

Specials with this product

  • Free Ground Shipping to the 48 statesdetails

Why Shop Sonic?

SONY Marine Gear Giveaway

Customer Testimonial

Best online place to order all your car audio needs at a low price and usually almost always free shipping and handling. They actually take care of their customers too. Will definitely be a repeat customer.

- Tommy

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JL Audio is a brand that can be trusted. Their subwoofers and amplifiers often exceed their expectations. If you are in the market for a quality amplifier that can be put the the test, this could be the one for you.

The JL Audio M-Series uses advanced amplifier technology to greatly enhance the sound and performance of your marine sound system. This amplifier offers a patented, high-efficiency Class A/B amplification circuit that provides sufficient power to high performance subwoofer systems. The M4500 is fully protected against any marine situation that you could be in, making this a perfect choice for your boat!

  • JL Audio M-Series 4-Channel Marine Amplifier
  • RMS Power Rating at 14.4V:
    • 4 ohms: 80 watts x 4 chan.
    • 2 ohm: 125 watts x 4 chan.
    • Bridged,8 ohms: 160 watts x 2 chan.
    • Bridged,4 ohms: 250 watts x 2 chan.
  • RMS Power Rating at 12.5V:
    • 4 ohms: 60 watts x 4 chan.
    • 2 ohm: 90 watts x 4 chan.
    • Bridged,8 ohms: 120 watts x 2 chan.
    • Bridged,4 ohms: 180 watts x 2 chan.
  • Max power output: 250 watts x 2 chan.
  • MOSFET power supply
  • Remote bass level input (RBC-1remote level control sold separately)
  • LED power indicators
  • Selectable bass boost (0 or 6 dB at 45 Hz)
  • 1 Pair of pass-through preamp RCA outputs
  • Absolute Symmetry Class A/B Circuit
  • Heavy duty aluminum alloy heatsink for heat dissipation
  • RCA level inputs
  • Screw terminals
  • Variable high-pass filter (50-200 Hz, 12 dB/octave)
  • Variable low-pass filter (50-200 Hz, 12 dB/octave)
  • Frequency response: 10-25,000Hz
  • Dimensions: 13-7/8"L x 9-1/4"W x 2-1/2"H
  • 8-gauge speaker wire accepted
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year SonicElectronix.com warranty
  • Note: Item can be exchanged up to 30 days, after 30 days item will be repair only

Product History:

JL Audio M400/4 thumbnail
(newest, current model)
JL Audio M4500 thumbnail
(previous model, replaced by JL Audio M400/4)
Power Specifications - Full Range Channels
RMS Power @ 4 ohms 80 watts x 4 channels
RMS Power @ 2 ohms 125 watts x 4 channels
RMS Power @ 1 ohm Not Stable
Bridged RMS Power 250 watts x 2 channels
Peak Power Output 250 watts x 2 channels
Amplifier Specifications
Marine Certified Yes
Amplifier Class AB
Number of Channels 4
Total Peak Power Output 500 watts
Total RMS Power Output 500 watts
Maximum Input Gauge Size 4 AWG
Minimum Impedance Unbridged 2 ohms
Minimum Impedance Bridged 4 ohms
THD at Rated RMS Power 0.1%
Speaker Level Inputs No
Preamp Outputs 1 pair
Built-in Crossover Low-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency 50 - 200 Hz
Low-Pass Crossover Frequency 50 - 200 Hz
Signal-to-Noise Ratio 104 dB
Bass Boost 0 - 6 dB
Bass/Gain Remote Optional (Accessory required and sold separately)
Fan Cooled No
CEA-2006 Compliant No
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Sonic Electronix
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Speaker Wire
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Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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Product Summary

Manufacturer: JL Audio
Model number: M4500
UPC: 699440980968
Weight: 11.00 lbs
Internal SKU: m4500
Internal product ID: 16066