Infinity 612M

6-1/2" 2-way marine speakers

Item #: 108612M

In Stock

33 Reviews

Your price: $99.99 pair Earn up to 100 Rewards points

Add to Cart Free Shipping Lifetime Tech Support

+ Add to wishlist + Email me alerts for this product

View all associated offers

Infinity's marine speakers bring superior sound to your boat. Strong, weather-resistant materials and precise construction ensure these high-performance speakers will keep the party going for years to come.

The Infinity 612M 6-1/2" speakers feature a polypropylene woofer cone bonded to a tough, UV-resistant rubber surround. This design delivers full bass response, while maintaining excellent resistance to sunlight and moisture. The corrosion-proof, cast-polymer basket shrugs off deterioration caused by salt, moisture, and UV rays, while the stylish non-removable grille is specially treated to retain its shiny chrome finish.

The grille-mounted 1" tweeter offers excellent high-frequency projection. Infinity seals the front of the woofer cone along with the speaker's magnet structure for extra protection against moisture. Stainless steel mounting hardware is included.

Priced per pair

Product Highlights:

  • 2-way 6-1/2" marine speakers (pair)
  • polypropylene woofer cone with UV-resistant rubber surround
  • grille-mounted 1" polypropylene semi-dome tweeter
  • cast-polymer basket and stainless steel mounting hardware
  • power range: 2-75 watts RMS (225 watts peak power)
  • frequency response: 50-20,000 Hz
  • sensitivity: 92 dB @ 2.83V
  • top-mount depth: 2-5/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way 6.5" marine speakers (each speaker has a non-removable grille)
  • 10 Stainless self-tapping screws
  • 10 Stainless speed clips
  • 2 Self-adhesive foam-strips
  • Instructions
  • Warranty card
  • Infinity sticker

Product Research


UV- and Water-Resistant: These marine speakers feature UV- and water-resistant chrome grilles, cast-polymer speaker baskets, rubber woofer surrounds, polypropylene woofer cones, poly semi-dome tweeters, and stainless steel mounting hardware. The spider and tinsel leads are also treated against moisture and UV contamination for marine applications.

Woofers: Each speaker has a 6-1/2" polypropylene woofer cone that rejects moisture and UV contamination while delivering excellent performance. Each woofer uses a UV- and water-resistant rubber surround.

Cast-polymer Baskets: Cast-polymer baskets are used to provide a waterproof platform that rejects UV contamination.

Tweeters: Each speaker uses a 1" poly semi-dome tweeter for crisp, clear highs.

Mounting Hardware: The speaker comes with stainless-steel mounting hardware and a fixed grille.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Infinity 612M Reviews

Average Customer Review:

33 reviews
Review this product
Great Gear Giveaway

Submit a review and then enter to win a $350 rewards card


Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Infinity 612M

Written By Infinity 612m, Caswell Beach NC on Tuesday, September 09, 2014

Crutchfield Customer Review (What's this?)

Great sound! Now friends want some!

Pros: Sound great!

Cons: None

Infinity 612M

Written By Anonymous, fl. on Tuesday, September 09, 2014

Crutchfield Customer Review (What's this?)


Can't beat them !!

Written By T.C., Richmond Va on Sunday, August 17, 2014

I have 2 sets of these mounted in audio tubes on 2 different ATVs. They stay covered in mud, and the sound has not changed one bit. They sound GREAT, very clear and crisp even at high volume. I can easily hear them over my aftermarket exhaust systems. I would prefer a little more base from them, but I think that is likely due to the non-adjustable EQ in the mp3 player i'm using with them. Either way, I can't say enough great things about them...especially for the price.

Pros: Already mentioned

Cons: None so far


Written By MFlip, Mosinee, WI on Saturday, August 09, 2014

Crutchfield Customer Review (What's this?)

Extremely happy with the sound. Installed in my pontoon boat, couldn't be happier

Pros: Easy installation, look great, worth the money

Cons: needed different size connectors.


Written By KennyFirstclass, Sposty on Monday, July 28, 2014

Crutchfield Customer Review (What's this?)

Easy to install. Very nice sound Quality. They look great too! Highly recommend these speakers.

Great Sound

Written By Anonymous, Alexandria la on Friday, July 11, 2014

Crutchfield Customer Review (What's this?)

Great bass. Good for interior boat sound.

Pros: Strong bass and midrange.

Cons: None.

great speakers

Written By wake w., agawam Ma on Thursday, June 26, 2014

Crutchfield Customer Review (What's this?)

I now have 4 infinity speakers with a nice amp on my ski boat and they sound great

Pros: Sound quality

Cons: None

Infinity Marine Speakers

Written By rabuckg, Ft. Bragg, NC on Saturday, June 21, 2014

Crutchfield Customer Review (What's this?)

These speakers are on my Harley Davidson motorcycle fairing along with a Fusion 700 series Marine Stereo. What a great sound. These speakers sound better than I expected. I am a happy customer.

Pros: Water resistant marine speakers work no matter the weather Nice chrome look

Cons: None found

Great speakers

Written By Jonny S, Helena, MT on Thursday, June 19, 2014

Crutchfield Customer Review (What's this?)

I love these speakers, they sound fantastic in my boat! Not only do they sound great but they are cool looking speakers. I may have to redo the carpet in my boat to match speakers.

Pros: Great sound and nice looking.

Cons: Haven't found any yet

Good sounding speakers

Written By Joe D, Indiana on Tuesday, May 27, 2014

Crutchfield Customer Review (What's this?)

Bought these speakers for my boat and they sound great. Really like the look of them. Received them in a few days after ordering and costumer service was helpful in deciding which speakers to go with. Only ordered 2 to make sure I liked them and will be ordering 2 more.

Pros: look and sound great, received quickly, support team at Crutchfield was helpful

These are paired with my marine radio in a rock crawler

Written By, Mesa, AZ on Thursday, May 22, 2014

Crutchfield Customer Review (What's this?)

Great speakers for offroad use. I can spray them off when they get muddy and not have to worry.

Pros: Great sound in my buggy, water resistant

Cons: None

Nice Sound

Written By Aaron, Sandy, UT on Monday, May 19, 2014

Crutchfield Customer Review (What's this?)

These speakers sound great. They were easy to install, and look like they will handle the outdoor environment on the boat just fine.

Pros: Great sound, and great price. Good bang for the buck.

Cons: It would be easier to install them in a tower if mating terminal plugs were included.

Infinity 612 M Speakers

Written By Mike B, Bullhead City, Az on Wednesday, May 07, 2014

Crutchfield Customer Review (What's this?)

Changed out the factory speakers in my boat, always thought mine sounded great but the Infinity's sound is outstanding.

Pros: Very easy to install.

Cons: None

Infinity 612M

Written By Rob, Iowa on Sunday, May 04, 2014

Crutchfield Customer Review (What's this?)

Nice replacement speakers to my Rinker 232 BR. I replaced 3 pair of Sony's that were 10 years old. Hope they hold up like the Sony's as they weren't bad. The Infinity's have a crisp sound. Easy to install but have connection fittings compared to other speakers I have installed.

Pros: Sound and look great

Cons: Wire connector fittings are different than most.

infinity 612m

Written By Ronnie B, deland, fl on Saturday, March 22, 2014

Crutchfield Customer Review (What's this?)

Great speaker. The sound quality is great and you can't beat the price.

Pros: Price, quality sound

Cons: It should have a better gasket for the speaker

Good speakers.

Written By Anonymous, Santa Maria ca. on Monday, March 03, 2014

Crutchfield Customer Review (What's this?)

They sound good and they look great. Especially for there price.

Infinity Marine Speakers

Written By Frank C, Jax,Fl. on Monday, November 04, 2013

Crutchfield Customer Review (What's this?)

Look & sound great!

Cons: None

Infinity Delivers Again

Written By Jason, Elk Grove, CA on Tuesday, October 15, 2013

Crutchfield Customer Review (What's this?)

Good price, good sound quality. These speakers were installed in the hot tub and we could once again have our tunes jamming. I'm a big fan of infinity, and I still am.

Infinity 612M

Written By MSC, wet WA on Tuesday, October 15, 2013

Crutchfield Customer Review (What's this?)

Great sound from install in golf cart. Just what I was looking for!

Pros: Chrome look grill, Stainless screws & weather resistant

Cons: none

6-1/2" 2-way marine speakers

Written By Grampa1999, Redding, CA on Thursday, October 10, 2013

Crutchfield Customer Review (What's this?)

Just What I wanted

Pros: easy install

Cons: none


Written By Robert, Florida on Friday, September 20, 2013

Crutchfield Customer Review (What's this?)

One word (Amazing )!!!!!!!!!!!! Installed in my boat with a set of 6x9's and just pushing them with a head unit and it sounds just as good as my system in my small truck with amps.

good value

Written By RobatNC, Mooresville, NC on Friday, August 23, 2013

Crutchfield Customer Review (What's this?)

these speakers sound great for the price and are very clear. Turn up the base a bit on the head unit to really get them rocking. I just wish they made an 8" speaker simliar to the JL's that are way to expensive for a 10 year old boat.

Awesome speakers

Written By GregM, Walterboro, SC on Monday, August 19, 2013

Crutchfield Customer Review (What's this?)

Upgraded the factory speakers in our Glastron GT205 with these. They fit in the existing cut-outs with no mods. Great bass and much better overall range than the original speakers.

Pros: Great sound, easy installation

Infinity 612M

Written By JOHNe, ga on Monday, August 19, 2013

Crutchfield Customer Review (What's this?)

great sound better than expected good poonton speakers

Pros: easy insallation

Awesome speakers

Written By Chris, Las Vegas on Tuesday, July 16, 2013

These speakers are well worth the money. I have them ran off my deck and they sound great. I'm hooking them up to 4 channel 400 watt amp. If they sound this good off the deck I can only imagine how they'll sound with an amp!!!

Infinity 612M

Written By RC, Brea CA on Saturday, June 22, 2013

Crutchfield Customer Review (What's this?)

Great sound and they look great. 100% satisfied

Pros: great sound and looks good

Cons: The speakers show the water spots. That's the only bad thing I could say about these speakers.

Nice Speakers!

Written By Jeff, Solomons, MD on Monday, November 21, 2011

Crutchfield Customer Review (What's this?)

See below...

Pros: Great sound! Wanted something that would sound good at a decent price, these speakers fit that bill. With my Key West DC 2020 the speakers are exposed to the elements so it just not make sense to go super high end but wanted something above a cheap marine speaker. SS installation screws included is a nice touch. These speakers appear to be built to stand up in the marine environment, we will see on that.

Cons: The hardware kit does not include the quick connectors for the speaker wires! And they are not the marine standard 250 size either. So I ended up soldering the wires directly on and then covering them in liquid electrical tape. Probably the better solution as in the long run as they sealed completely. If you get quick connects I would be sure to seal the entire connection in liquid electrical tape.

First impression

Written By PatG, Petaluma, Ca on Friday, August 12, 2011

Crutchfield Customer Review (What's this?)

Installed the speakers in my '84 Mastercraft the day before going on a weeks vacation. I have a 400W Alpine amp powering 2 sets of speakers along with a 10 inch sub. We cranked the music for the week and the speakers sound great. Plenty of speaker for my small boat. We also sit on the beach and listen to music and it was plenty loud and clear. Obviously I can't speak to the life span of the speakers, but so far so good. I have a blue boat and the speakers look great which is a plus.

The 5 rating is based on only a weeks experience and also comparing these to the Kenwood speakers, now deceased, that preceeded them. The Kenwoods were not close in performance but I was also overpowering them. Match your speakers RMS rating to amp or stereo. My Kenwoods were rated 35W RMS, lasted 4 years and don't compare to the performance of the Infinity.

would highly recommend

Written By Kim, St Louis, MO on Monday, July 11, 2011

Crutchfield Customer Review (What's this?)

We bought a set of these for our boat. They have great sound quality and have worked even after very strong storms and rain. I am very happy with the performance of the speakers AND the support and service from

Excellent Value & Sound quality

Written By Satisfied, Bend, OR on Wednesday, April 20, 2011

Crutchfield Customer Review (What's this?)

I bought two sets of these to replace the 10 year old Infinity Marines in my tower
that finally gave out.. Put simply,, they ROCK! The sound is incredible as well as
the look! I never liked the marine (white) & my tubs are polished aluminum so
already they look more like they belong there... Best part, I bought them from the
"open box" section of Crutchfield outlet & saved over $100! While they sound good
straight off the stereo I push the four with a 1000 watt Fosgate & they really sound

Infinity 612M

Written By Anonymous, New bern, NC on Saturday, April 09, 2011

Crutchfield Customer Review (What's this?)

Installed these speakers in my 95 MasterCraft Boat after discussing different
speaker selections with one of the Crutchfield sales personnel...Thank you
very much for the suggestion. These speakers rock...great clarity, great bass.
Would buy these speakers again and again.

Great Boat Speakers

Written By Peter, San Diego, CA on Wednesday, May 26, 2010

Puts ripples in the water with the bass it produces on my dual console fishing boat. I currently have a 500 watt amp that is split. One side drives the Bazooka in the cabinet, and the other side drives the two Infinity. Much clarity with the set up having all ranges covered high, medium, lows. I do also have two smaller front speakers, but this is where the fader of the radio comes in so I can control the volume around my imediate listening circle to hear the GPS and Marine Radio.


Written By CJ, Orlando, Fl on Saturday, June 20, 2009

Crutchfield Customer Review (What's this?)

Just Installed the speakers with a 1000watt amp in my boat and I am very impressed with them. Crystal clear and too loud, just how they should be

Get everything you’ll need to enjoy your new Infinity 612M

Designed for marine installations, the tinned copper wire is fully fire-rated for concealed installations.
The right tools will help keep your installation simple and clean.
JL Audio XM-WHTSC16 Speaker Wire

JL Audio XM-WHTSC16 Speaker Wire

16-gauge marine speaker wire — priced per foot

Item #: 13691692


Metra Crimp Tool and Connectors

Metra Crimp Tool and Connectors

Package contains crimp tool and over 150 pieces

Item #: 120CRIMPKT


Add to Cart
S&G Tool Aid 87615

S&G Tool Aid 87615

Window and Door Clip Removal Tool

Item #: 18187615


S&G Tool Aid 87650

S&G Tool Aid 87650

Door Trim and Panel Removal Tool

Item #: 18187650


Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6NGL


Add to Cart
Skewdriver Pro SPK4042

Skewdriver Pro SPK4042

Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)

Item #: 180SPK4042


Add to Cart
Spec Tools SQR-200a Squeeze Wrench

Spec Tools SQR-200a Squeeze Wrench

Narrow space ratchet kit with 18 sockets

Item #: 180SQR200A


Add to Cart
Install Bay IB35400

Install Bay IB35400

Premium door panel and trim tool

Item #: 12035400

Add to Cart
Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6LNGL


Add to Cart
Install Bay 3320

Install Bay 3320

Auto-ranging digital multimeter

Item #: 1203320

Add to Cart
Posi-Products™ Car Speaker Connectors

Posi-Products™ Car Speaker Connectors

8 connectors for installing car speakers

Item #: 669PP502


Add to Cart