Skip to product information
1 of 2

| Recmar

4-Channel Marine Amplifier JL Audio Genuine, 600W RMS Class D, OEM 98224 / MHD600/4 (JLMHD600/4)

JLMHD600/4


  • Free Shipping ✅

🚚 Dispatched in 1-3 Days

⏱️ 14 Day Return Policy

Low stock

Our stock levels are updated in real time, though occasional delays may occur. If inventory appears limited and you need confirmation before ordering, our customer service team is available via live chat to verify current availability. Look for the orange chat icon in the bottom right corner of your screen.


Regular price £1,462.12 GBP
Sale price £1,462.12 GBP Regular price
Tax included. Shipping calculated at checkout.
Payment methods
  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
Shop safely with us

💬 Ask a question about this product

By signing up you agree to receive marketing emails and text messages. View our privacy policy and terms of service for more info.


Product Specifications and Features


The JL Audio MHD600/4 is a compact, high-output 4-channel Class D marine amplifier engineered for clean power delivery in harsh onboard environments. Supplied by Recmar, this is a genuine JL Audio marine amp ideal for running four full-range speakers or a 3-channel setup (front/rear + bridged sub).

  • Rated power (11–14.5V): 150W RMS x 4 @ 1.5–4Ω; 300W RMS x 2 bridged @ 3–8Ω
  • Amplifier topology: Class D switching with Single-Cycle Control™
  • Power supply: R.I.P.S. regulated switching supply for consistent output
  • Crossovers: selectable High-Pass or Low-Pass, 50–500 Hz, 12/24 dB per octave (Front & Rear filter sections)
  • Inputs/outputs: differential-balanced RCA inputs (Front/Rear), 2/4-ch input mode, buffered 2-ch preamp output (front or summed)
  • Marine-ready build: powder-coated finishes, gasketed control cover, stainless hardware
  • Electrical: recommended fuse 50A (AFS/AGU/MaxiFuse); minimum copper power/ground wire 4 AWG
  • Dimensions (W x D x H): 10.74 x 7.85 x 1.93 in (273 x 199.5 x 49 mm)

OEM reference: JL Audio 98224 (Model: MHD600/4). SKU: JLMHD600/4.

Important: Designed for 12V negative-ground electrical systems. Optional accessories (sold separately) include the JL Audio HD-RLC remote level control and HD Stack Kit for stacking compatible amps. Confirm ratings, specification and fitment before ordering.

Shipping Information

All orders ship from the UK. Orders placed Monday–Thursday before 12:00pm are processed same day. Orders placed Friday after 12:00pm through Sunday are processed the following Monday. Processing times vary by stock location.

Out of stock items can be back-ordered with a typical 3–4 week lead time.

If an item shows "Dispatch Available Today" and you order after 2pm UK time, processing begins the next business day.

All times are in UK BST.

Notice: Due to ongoing conflicts impacting logistics, some deliveries or re-stocking may take a little longer than expected. We're working to get your order to you as quickly as possible.

4-Channel Marine Amplifier JL Audio Genuine, 600W RMS Class D, OEM 98224 / MHD600/4 (JLMHD600/4)

£1,462.12 GBP

  • Largest parts catalogue in the UK

    Explore over 50,000 marine parts, all in one place.

  • Secure and safe shopping

    Your personal data is protected with SSL encryption.

  • Best prices on the internet

    We compare prices daily to ensure you get the best deal.

  • Satisfaction Guarantee

    We stand behind every product with a full satisfaction guarantee.