Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The JL Audio XDM300/1 is a single-channel Class D amplifier built for marine and car use, rated at 300 W RMS into 4 ohms and 400 W into 2 ohms. Its sealed, corrosion-resistant chassis and conformal-coated circuit board set it apart from ordinary car amps that struggle in damp, salt-air environments. It suits boat owners powering a subwoofer or a pair of bridged speakers, and it is compact enough for tight helm lockers. Against cheaper marine amps it costs more, but reviewers treat the XDM line as a durable long-term choice.
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Lowest price we've seen: $529.99 on Nov 9 at Abt Electronics. Tracked across 3 stores since Nov 9.
Owners of the XDM line describe it as solid, clean-sounding and reliable in boats, with the marine sealing holding up where ordinary amps corrode. Complaints are mostly about the premium over budget amps and the limited tuning on a single channel.
