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Marine stereo buying guide

How to choose the marine stereo that's right for you


Tim Sprinkle

Tim Sprinkle is a talented writer and car audio enthusiast who wrote for Crutchfield for several years before life took him away from Virginia to Colorado, and onward to greater things.

More from Tim Sprinkle

choosing the right marine audio gear for your boat

What makes marine stereos different?

From punishing sunlight to driving rain to extreme temperatures, a marine audio system has to endure a lot of abuse. And that’s just when the boat is tied up at the marina. If you want great sound on your boat, you need marine-rated gear that's designed and tested to stand up to the elements.

Unlike car audio components — which live in the watertight interior of your vehicle — marine equipment has to be able to endure an open climate. The water, salt, and sun that make boating so much fun for you can wreak havoc on your boat's electrical components. If your gear isn't made for this sort of abuse, it won't last a season. 

Marine gear undergoes hundreds—even thousands—of hours of extensive pre-production testing. Ultraviolet test chambers simulate years of sun exposure, while special “salt fog” chambers simulate years of exposure to harsh salt water environments. Blasts of water test every seal to ensure that every button, switch and port is moisture-proof. And special conformal coatings provide additional protection for the internal circuitry.

There are three key things to consider when you're comparing marine audio equipment:

  1. Water resistance: If your gear is "water resistant," that means it can handle splashes and light rain, but isn't built to handle submersion. Levels of resistance vary by manufacturer. Waterproof products, on the other hand, can be fully submerged without damage, though the specifics vary here, too.
  2. UV resistance: Quality marine gear is designed to withstand sun damage. It's a key feature to look for on receiver faceplates, speaker cones and remote controls.
  3. Anti-corrosion protection: Salt water can turn great gear into ballast in no time. Marine gear is designed to resist rust and corrosion, with coated circuit boards, plated connections, and rust-resistant chassis components.
Clarion CMD4

Water resistance is essential for marine electronics. If your gear can't stand up to the elements, it probably won't last a whole season.

What should you look for in a marine stereo?

The right specs

Marine audio gear is just like car gear in that better specs mean better sound. For receivers, look for a high CD signal-to-noise ratio, a wide frequency response, plenty of RMS power, and plenty of USB ports, of you need them. If radio's your thing, check the FM sensitivity spec — the lower, the better. For speakers, you'll want plenty of power, plus weatherproof cones, rubber surrounds, and UV -resistant grilles.

High power

Since you'll be listening to your music out in the open (as opposed to within the acoustic confines of a car), high power is a must for clean, clear sound. Most marine receivers come with built-in 4-way amplifiers, but if you love it loud or just want to drown out the nautical background noise, you might want to consider adding an external marine amp to your system.

Useful features

The days of the basic, one-trick CD player are long gone. Today's marine receivers are every bit as powerful and feature-packed as their automotive cousins. Built-in Bluetooth® lets you stream music or make calls without taking your hand off the helm. SiriusXM satellite radio tuners let you enjoy your favorite music, sports and talk up to 200 miles offshore. And multiple USB and aux connections let you enjoy your entire music collection by plugging in an iPod®, thumb drive or MP3 player. Today's aftermarket marine receivers have everything you need to stay entertained at the dock and on the water.


If you have a larger system in mind, look for a marine receiver with multiple sets of preamp outputs. That makes it easier to connect and control external amplifiers and subwoofers as you build your ultimate marine audio system. Many marine receivers are available with waterproof, wired remote controls. These remotes allow you to mount the radio inside a watertight compartment if you need to, plus they give you and your passengers convenient control over what's playing.

JL Audio marine speakers

JL Audio's MX10IB3-SG-WH marine speaker

How are you going to install it?

Installing a stereo in a boat can be a bit tricky. Unlike most land-bound vehicles, boats don't generally offer one obvious, ideal place for audio equipment. And, depending on the various power and space limitations, your boat installation could present a unique set of challenges.

If you're replacing an existing radio, you can probably use the existing mounting location and wiring. Otherwise, you might need to cut some paneling or run wires for the components. Most marine stereos are a standard single-DIN size, and connect to a 12-volt marine battery.

Boss MRH-7

The Boss MRH7 housing will hold your single-DIN (2" tall) marine receiver

Some boats are equipped with grounding plates, but not all. If yours doesn't have one, grounding a stereo can be challenging. Consult your manufacturer for more information on where to ground components in your boat.

Get the one that's right for you

There are a wide variety of durable, high-quality marine stereos on the market today. In fact, just about any A/V configuration you can imagine in your car can now be tweaked to work on your boat. With that flexibility in mind, there are many things to take into account when shopping for a marine audio system, so be sure to study each product carefully before deciding which is the best one for you.

As always, if you have any questions, contact us via phone, chat, or email. Our advisors are here to help!

Get everything you need

Don't forget the wires, including patch cables, plus power and speaker wire.

Control your new stereo from anywhere on the boat with a weather-resistant marine remote.

Protect your in-dash stereo and handheld electronics with sturdy, all-weather covers and mounts.

Want to enjoy SiriusXM satellite radio on your boat? If you have a SiriusXM-ready receiver, we have the gear you need.

  • Ed Braczyk from Amherst, NH

    Posted on 7/19/2015 10:29:26 PM

    I'm looking for a good quality stereo receiver that plays cds and ipod input. My boat is a center console fishing boat. I currently have a Dual but the cd reader isn't functioning properly. I want to replace it. Suggestions? ?? Thanks!

  • Jon Paulette from Crutchfield

    Posted on 7/20/2015 9:04:31 AM

    Ed, we sent your question to our sales team for the best answer. They'll be contacting you via email soon. For immediate help, you can contact them via phone or chat.

  • kevin rice from jefferson

    Posted on 7/21/2015 7:51:13 PM

    I need a recommendation on a radio for my boat. Have a problem with the detachable face connections failing. Have an amp, sub, four full range speakers and a Kenwood head unit don't own a C/D just use my I-Pod. This is the third radio face plate issue. Help

  • Jon Paulette from Crutchfield

    Posted on 7/22/2015 1:54:28 PM

    Kevin, we sent your question to our sales team for the best answer. They'll be contacting you via email soon. For immediate help, you can contact them via phone or chat.

  • Joseph Shinder from United States

    Posted on 7/30/2015 8:12:23 PM

    Looking for a radio and speakers to put in my Yamaha Rhino Utv maybe xm for use in mountains

  • Jon Paulette from Crutchfield

    Posted on 7/31/2015 9:33:03 AM

    Joseph, You'll definitely want a marine-rated receiver and speakers for your UTV, so you're in the right place. I've sent your question to our sales team, so they'll be contacting you via email soon. In the meantime, check out our ATV/UTV section.

  • Cailen

    Posted on 9/17/2015 1:18:28 PM

    My Bayliner stereo is run by an amp. There is no interface, just an auxiliary cord that is powered by a switch. My system does not currently work. I think the amp got too much water on it. I am looking at getting a new (hopefully water proof) amp. Does this sound right? Suggestions? Thanks!

  • Jon Paulette from Crutchfield

    Posted on 9/17/2015 2:29:05 PM

    Cailen, Sorry about that amp. Sounds like you need a new marine-rated amplifier, so I'll send your question along to our sales team. They'll be contacting you via email soon. For immediate help, you can contact them via phone or chat. The big thing to remember in the meantime is that even marine amps are water RESISTANT, not waterproof. When you install you new amp, make sure it's as far away from splashes and spray as possible.

  • John Stevenson from Howell

    Posted on 1/31/2016 10:37:56 AM

    I have a vintage 1995 SeaRay 175.....I have an existing Clarion stereo i want to replace, because it doesn't have enough power to four speakers (two under the side gunwales, two at the back near the floor, below the jumpseats) and I get no bass. Furthermore, I have to re-wire whatever I put in. Do you know where I can get a good set of directions for wiring a new stereo and amp?

  • Jon Paulette from Crutchfield

    Posted on 2/1/2016 9:31:15 AM

    John, We offer plenty of quality receivers, plus the marine-rated wiring you'll need. When you buy your gear from Crutchfield, you can call Tech Support for free help setting up your system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Check out our tech support page for details.

  • Ted Weidner from Omaha

    Posted on 2/4/2016 8:40:19 PM

    Looking to outfit a Crownline 266BR. Head unit, Amp, 4 or more speakers and 1-2 Subs. I want the best sound and volume possible with a budget of $1000-$1500. Any help is appreciated.

  • Jon Paulette from Crutchfield

    Posted on 2/5/2016 9:13:00 AM

    Ted, We can definitely help you outfit your boat. I'll send this to our sales team, and they'll be contacting you via email soon. For immediate help, you can contact them via phone or chat. Good luck!

  • Andy from Northport, AL

    Posted on 3/7/2016 6:01:54 PM

    I bought a Clarion CMS2 marine receiver to replace an existing in-dash Clarion CMD8 marine receiver. The control panel for the CMS2 appears to be an odd size (not a single DIN size). When I remove the CMD8 from the dash opening, will there be a gap that I need to cover up when I install the CMS2? If so, do I need a special trim kit? If so, is there a prefabricated dash mounted kit available for purchase?

  • Jon Paulette from Crutchfield

    Posted on 3/8/2016 9:39:04 AM

    Andy, There is a bit of a size difference between those two, so you will have a gap. This Universal Plastic Panel will help you fill it. It's scored on the back for easy cutting and smooth on the front for a neat, custom look.

  • Scott from Macon

    Posted on 5/18/2016 9:03:47 PM

    Greetings- I have a 1995 Four Winns Bowrider. It has the OEM stereo system that even Gilligan would dislike. Looking for a receiver with CD/IPod/AM/FM, 4 each 6.5 speakers and a small sub - maybe 8". Include speaker wires and would I need an amp? Thanks for your help.

  • Jon Paulette from Crutchfield

    Posted on 5/19/2016 9:45:27 AM

    Scott, And thank you for getting in touch with us. I've sent your question to our sales team, and they'll be contacting you via email soon. For immediate help, you can contact them via phone or chat.

  • Ralph from Tampa

    Posted on 5/21/2016 9:07:33 AM

    Looking to upgrade my OEM radio on 24 Searay sun deck. Any ideas?

  • Jon Paulette from Crutchfield

    Posted on 5/23/2016 9:00:25 AM

    Ralph, Lots of 'em! I've sent your question to our sales team, and they'll be contacting you via email soon. For immediate help, you can contact them via phone or chat.