






DS18 MRX1 Marine & Powersports Headunit — 2.75" LCD Screen, 1 Zone, 4-Volt Output, Bluetooth, RDS, 4 x 40 Watts
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DS18 MRX1 Marine & Powersports Headunit — 2.75" LCD Screen, 1 Zone, 4-Volt Output, Bluetooth, RDS, 4 x 40 Watts
Product Overview
Description
Product Overview
DS18 MRX1
DS18’s HYDRO MRX1 is the ultimate all-in-one marine head unit for power, precision, and durability.
This beast handles whatever you throw at it with its IP65 water resistance, UV protection, salt spray shield, and conformal coating. Plus, it comes with a silicone cover for extra protection when not in use.
With V4.2 Bluetooth pairing capabilities, you can easily connect your phone or any Bluetooth-enabled device to play music directly through the MRX1. Experience precise sound control with adjustable bass, treble, balance, fade, EQ, loudness, and Subwoofer crossover settings. Choose from preset EQ options like FLAT, POP, ROCK, CLASSICAL, or turn off the EQ altogether for a customized sound experience. Adjusting settings has never been easier thanks to CT sync, which allows you to fine-tune time settings using over-the-air radio frequencies. Not only does the MRX1 deliver superior sound quality and functionality, but it also features a wideband AM/FM receiver for enjoying all your favorite radio stations.
The MRX1 boasts three outputs for easy integration into fully applied systems, including front, rear, and sub high-quality outputs. The USB port not only enables music transfer but also charges your device at a rate of 2a. The MRX1’s 4 ohm load, offers 4x15W RMS, while a 2 ohm load offers 4x20W RMS. Prepare to be blown away by the MRX1's unmatched sound output. With 4v preamp outputs, you can expect exceptional audio quality with the voltage to push it.
The MRX1 is the ultimate companion for those seeking exceptional sound.
Rule the Water
King of the COVE
Free shipping on orders $100+
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
Please read our FAQs page to find out more.
RMS vs. MAX power — which number do I actually care about?
RMS is what your gear handles continuously; MAX is the short burst it can survive without complaint. Match your amplifier's RMS output to your speakers' RMS rating — sizing off the MAX number is how magic smoke gets released.
What does the IP65 rating on DS18 marine gear actually mean?
It's dust-tight and rated against low-pressure water jets from any direction — built for spray, rain, and the occasional wave over the bow, not for full submersion. If something's going somewhere it could sit underwater, that's a different conversation entirely.
How do I match an amplifier to my speakers without guessing?
Add up the RMS rating of everything the amp will power, and pick an amp whose RMS output (at your speakers' impedance — usually 4-ohm) lands close to that total. Undersized is thin sound; wildly oversized is a fast way to blow a voice coil.
Can I mix marine-grade gear into a standard car audio setup, or the reverse?
You can run marine-grade gear in a car — it's just over-built for that environment, no downside besides cost. Running non-weatherproof car audio gear in an open UTV or boat is the direction that causes problems.
What gauge wiring kit do I need?
It scales with your amp's power draw and the length of the run — DS18's OFC kits come in 4-gauge and 8-gauge for a reason. Undersized wiring on a high-draw system is a voltage-drop and heat problem waiting to happen; when in doubt, size up.

