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Boss MCK632WB.64

Marine audio package: Includes MR632UAB digital media receiver (does not play CDs) and four MR6W 6-1/2" marine speakers

Item # 104M632W4

Does your boat's stereo system sound weak and waterlogged? It's probably time for a new one.

Does your boat's stereo system sound weak and waterlogged? It's probably time for a new one.

California customers:
Please click here for your Proposition 65 warning.

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About the Boss MCK632WB.64

Really nice sound at a very nice price

Does your boat's stereo system sound weak and waterlogged? It's probably time for a new one. With this combo deal from Boss Marine, you can replace your receiver and speakers for a surprisingly reasonable price. The MCK632WB.64 package includes a marine-rated digital media receiver, two sets of rugged 6-1/2" marine speakers, an antenna, and a remote control. If you're looking for a solid, seaworthy system that sounds good, this package has everything you need.

Really nice sound at a very nice price

Does your boat's stereo system sound weak and waterlogged? It's probably time for a new one. With this combo deal from Boss Marine, you can replace your receiver and speakers for a surprisingly reasonable price. The MCK632WB.64 package includes a marine-rated digital media receiver, two sets of rugged 6-1/2" marine speakers, an antenna, and a remote control. If you're looking for a solid, seaworthy system that sounds good, this package has everything you need.

A rugged receiver

Boss designed the MR632UAB digital media receiver for life on the water, with a UV-resistant exterior that resists fading and a conformal-coated PC board that resists corrosion. The detachable faceplate features a single-line alphanumeric text display that's easy to read day or night. When you leave your boat at the dock, you can slip the detachable face into a cubby to keep it out of sight.

Plenty of ways to play

Built-in Bluetooth® lets you steam Spotify, Pandora, or your own digital music collection from your iPod®, iPhone®, or Android smartphone, but that's not the only way to enjoy your tunes. You can also play music stored on a USB drive or plug your MP3 player into the 3.5mm aux input. All the openings are protected from salt and spray when not in use, of course.  And you can control all functions (except for Bluetooth) with the included remote.

Four full-range speakers

The four included Boss MR6W marine speakers are a great match for the MR632UAB. These durable 6-1/2" dual cone speakers provide plenty of low-end punch and excellent clarity. The water-resistant design looks great and stands up to moisture and sunlight.

Expand your system later

If you want to connect an external amp, the MR632UAB sports two pairs of 2-volt preamp outputs.

Bluetooth note: Use of this receiver's Bluetooth features will depend upon your phone's Bluetooth capabilities. Learn more in our article explaining Bluetooth profiles.

iPod/smartphone note: If you're going to use your iPod or smartphone with this receiver, be sure to check "Details" for compatibility information.


Product highlights:

  • package includes Boss Marine MR632UAB receiver, an antenna, and 2 pairs of MR6W 6-1/2" marine speakers
Boss Marine MR632UAB
  • marine digital media receiver (does not play CDs)
  • built-in amplifier (50 watts peak × 4 channels)
  • built-in Bluetooth for wireless calling and music streaming
  • compatible with MP3 and WMA files
  • AM/FM receiver with 30 presets (18 FM & 12 AM)
  • U.S. and European tuning
  • remote control
  • detachable face
  • waterproof conformal-coated circuit boards
  • 3-band EQ with four preset tone curves
  • inputs: front auxiliary in; front USB port
  • 4-channel preamp outputs (2-volt front and rear)
  • stainless steel mounting hardware included
  • package includes MRANT 10 hideaway antenna
  • chassis width: 7.175"
  • chassis height: 2.065"
  • nose width: 7.425"
  • nose height: 2.265"
  • warranty: 3 years
MR6W marine speakers (2 pairs)
  • 2-way 6-1/2" dual cone marine speakers with white grilles
  • polypropylene cones with treated cloth surrounds
  • cone tweeters
  • handles up to 90 watts RMS (180 watts peak)
  • sensitivity: 89 dB
  • frequency response: 80-20,000 Hz
  • top-mount depth: 2-1/4"
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • MFR # MCK632WB.64

What's in the box:

  • Boss Audio MR632UAB:
  • Marine digital media receiver (10A fuse)
  • Faceplate (attached)
  • Trim-ring (installed)
  • Sleeve (installed)
  • Power/ground harness
  • Speaker harness
  • Remote control (CR2025 3V battery installed)
  • 36" Stereo minijack cable
  • 41" Marine dipole antenna
  • 2 Removal tools
  • Drawstring pouch
  • 4 Rubber inserts
  • User's Manual
  • Warranty/Registration Card
  • Boss Audio MR6W:
  • 4 Marine speakers
  • Four 10' lengths of speaker wire
  • 4 Self-adhesive gaskets
  • 16 Self-tapping screws
  • 16 Speed-clips

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More details on the Boss MCK632WB.64

Stacey B.

Product Research

Marine, Display, & Remote Features
Multimedia Playback
Audio Section & Speakers

Marine, Display, & Remote Features

Marine Certified: The Boss MR632UAB marine digital media receiver has been engineered and tested for use in the harsh marine environment. The marine digital media receiver features UV coating and PC board with conformal coating to prevent fading and protect against corrosion.

Detachable Faceplate: The MR632UAB's face-plate is detachable to deter theft (a drawstring pouch is included for the detachable face). A zippered, padded soft face case (142DFC1X, sold separately) can also be purchased for better protection.

Optional Marine Cover: The Boss MRC5 universal water-resistant radio cover (sold separately) better protects the MR632UAB receiver in marine applications. The MRC5's hinged cover folds down to protect receiver and folds up to allow you to access the unit's front-panel controls.

IR Remote: The Boss MR632UAB includes a 21-button IR remote control for wireless operation of the digital media receiver. The remote even allows you to answer/end Bluetooth phone calls, as well as dial a phone number from its numeric keypad (0-9).

Multimedia Playback

USB Port: MR632UAB is equipped with a front-panel USB (type-A) port for connection of a USB mass storage class device; such select digital audio players or thumbdrives (up to 32GB). The unit supports playback of MP3/WMA music files loaded onto a compatible USB msc device. USB portable devices that can be charged via USB will be charged when plugged into the digital media receiver's USB port (1A), and the vehicle's ignition switch is set to ACC or On.

Note: The unit's USB port is not compatible with Apple iOS or Android OS devices.

Bluetooth Technology: The Boss Marine digital media receiver is equipped with built-in Bluetooth (v2.0), providing hands-free communication and audio streaming for added convenience and safety in the vehicle. Before using the unit's Bluetooth functions, you must pair your Bluetooth enabled mobile phone or audio device to the MR632UAB (only one device can be paired and connected at a time).

  • Hands-Free Communication (w/ Integrated Mic): The Boss MR632UAB allows for wireless communication between the head unit and your Bluetooth enabled cell-phone. The head unit will display the caller's phone number and an audible ring tone will be heard through your vehicle's speaker during an incoming call. You can manually answer or end a call through the head unit's front-panel controls. The MR632UAB allows you to carry on the phone conversation using the head unit's integrated microphone and your car audio speakers. Your music will mute automatically during a call. You can enter and dial a phone number using the included remote's numeric keypad (0-9) or using your mobile phone to dial a number (there is no phonebook transfer).
  • Wireless Audio Streaming: The Boss MR632UAB also allows you to play back stored music and music apps from your Bluetooth enabled phone, PDA, or personal music player using a Bluetooth connection. You can control basic music playback functions (Play/Pause & Previous/Next Track) of from the MR632UAB. Advance music navigation and song/artist information will still need to be handled through the Bluetooth mobile device. This unit does not display song/artist information from Bluetooth audio devices.

Aux Input: The marine digital media receiver is fitted with a front-panel 3.5mm auxiliary input. A 36" stereo minijack cable is included.

AM/FM Tuner: The Boss MR632UAB features a built-in AM/FM tuner and comes with a 41" marine dipole antenna. The MR632UAB features 3 FM banks and 2 AM banks for storing presets (automatically or manually). You can store 6 presets for each AM/FM bank giving you a total of 18 FM presets and 12 AM presets (total of 30). Local seek tuning lets you tune in only those radio stations with sufficiently strong signals for good reception. You can also switch between Stereo/Mono modes for better reception. You can set the built-in AM/FM tuner between US standard and European tuning spacing.

Audio Section & Speakers

50W/4Ch Amp + RCA Outputs: The Boss MR632UAB digital media receiver employs a 50W (peak) x 4ch amplifier. The Boss MR632UAB is also fitted with front & rear 2-volt RCA outputs to connect an external amplifier.

EQ/Tone/Loudness Control: You can choose between 4 preset modes - Pop, Rock, Classic, Flat, or Off. In addition to the EQ Presets, the MR632UAB offers independent Bass & Treble control. The Loudness function enhances low and high frequencies to make the sound clearer at lower volumes.

Key Beep: The in-dash head unit provides an audible beep to confirm button operation. This function can be turned On or Off.

Marine Dual Cone Speakers: The Boss MR6W speakers are designed and treated for use in the harsh marine environment. The marine dual cone speakers feature a cone woofer and cone tweeter. The speaker has a frequency response of 80Hz-20kHz and can handle up to 180-watts (max). The integrated basket and grille are made of durable UV resistant plastic. The speakers include stainless steel mounting screws and self-adhesive foam gaskets for a watertight fit.

  • Mounting Height: 0.875"
  • Mounting Depth: 2.25"
  • Cutout Diameter: 5.4375"
  • Magnet Diameter: 3.695"
  • Frame/Grille Diameter: 7.5625"
  • Number of Mounting Holes: 4 (spaced 4.75" apart)


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Customer Q&A

9 questions already asked

I have a 10 disc cd changer. Can this receiver connect to it?
[ Charlie  Sep 04, 2022 ]
1 answer
Greetings Charlie, and thank you for your question. Answer, maybe. It depends on the changer. Some are proprietary, and can only be used with the same brand stereo, and one with the CD changer port. Some CD changers are universal and connect to stereos via the antenna input, then you tune your radio to an open FM frequency to play back the CDs. If thats how your CD changer works, then it can be connected to the Boss MCK632WB.64
[ Thomas J.  Sep 04, 2022 ]  Staff
Can this system switch between playing a pair of speakers or all speaker at once? Like switching speakers A to B or A and B?
[ Blake  Sep 02, 2022 ]
1 answer
This Boss MCK632WB.64 is a single zone radio, Blake. This means it will not have any A to B type switch sadly. However, you CAN play only a pair of speakers at a time using the fade feature. Fading front to rear will allow you to choose how much or which speakers are playing back at a certain time! You also cannot beat the stellar deal, Boss really kills it in the bang for the buck category!
[ T  Sep 02, 2022 ]  Staff
I am measuring my old speakers across and they are 6 inches Do you think yours will fit in? Are speakers sizes fairly uniform
[ Doug C  Aug 20, 2022 ]
1 answer
In general speakers are similar sizes with minimal difference, diagonally those speakers are 6.5" so you may have to do some modifying to get them to fit however we do sell a few true 6" speakers that may be an easier match which I will down below.|6
[ Arielle  Aug 20, 2022 ]  Staff
Does this stereo run more than 4 speakers? I have another pair of speakers I would like to add on. Would be a total of 6 speakers. How would I make this work if the stereo wouldn't fit 6?
[ Rowe  Apr 28, 2022 ]
1 answer
This stereo can only power 4 speakers itself. It does have preamp outputs that can be used with external amps to power more speakers. I recommend contacting an advisor by calling 1-800-324-9695 to get a personal recommendation on an amp to power your speakers
[ Paul  May 04, 2022 ]  Staff
Boss MCK632WB.64 Does you sell a cover for this unit? if so, how much extra?
[ Evaristo  Aug 19, 2021 ]
2 answers
it came with a cover
[ BRIAN  Aug 27, 2021 ]
Yes there are a few different ones available. From the Boss product page click on the "Accessories" tab and the first option will be for "Marine radio covers & Stereo mounts" They currently range anywhere from $19.99 to $49.99. Hope this helps.
[ Kenny  Aug 21, 2021 ]  Staff
What fuse should I run to this head unit ?
[ Roddy  Jun 04, 2021 ]
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Krissy  Jun 18, 2021 ]  Staff
Where is this Boss Marine radio made?
[ JP  May 20, 2019 ]
1 answer
I'm not sure but mine is on the second season in mid Michigan in a older pontoon and it's still great. I have a small power draw, I'm assuming from a memory feature so I disconnect the battery if I'm gone for more than a few weeks. I stored the boat outside this last winter without a cover and was pleased it worked this past memorial day weekend. It was covered in over 2.5 feet of snow in mid February.
[ Don  May 29, 2019 ]

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