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Infinity 612M

6.5" 2-way Marine Speakers

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List price $169.95

$71.00

with warranty

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  • 6-1/2" 2-Way Marine Speakers
  • Power Handling:
    • Peak: 450 watts per pair / 225 watts each
    • RMS: 150 watts per pair / 75 watts each
  • Polypropylene cone woofer
  • treated UV rubber surround
  • Waterproof polypropylene semi-dome tweeter
  • Water and UV-Resistant construction
  • Corrosion-proof cast polymer basket
  • 4 ohms impedance
  • Stainless steel mounting hardware
  • Frequency response: 50-20,000
  • Sensitivity: 92 dB
  • Top-mount depth: 2-5/8"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Priced Per Pair

Product History:

Infinity 612M thumbnail
(newest, current model)
Lanzar VB6.1 thumbnail
(previous model, replaced by Infinity 612M)

Speaker Specifications

Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6-1/2"
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Semi-Dome
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Polypropylene
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Polypropylene
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
225 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
75 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
92 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
50 - 20,000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
2-5/8"
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Yes
Number of Speakers
This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

Please refer to the product image and description for further details about the speaker.

2

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
68%
4 Star
23%
3 Star
0%
2 Star
0%
1 Star
9%

Average Attribution Rating

Durability
4.3
Value
4.3
Features
4.3
Design
4.5
Usability
4.5

AVP

WA

Overall
Durability
Value
Features
Design
Usability

New Infinity system

July 29, 2014

I am very satisfied with the purchase of the speakers. They are installed and working great. The delivery went without a hitch. Was able to track the order and arrived on time. Great value and would purchase from this seller anytime again.

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Irish Wake

concord nh

Overall
Durability
Value
Features
Design
Usability

Sharp looking, sounds great

July 28, 2014

Purchased these for my Carver Yacht. They look sharp and the sound and quality of the speaker is great.

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Jay

Houston, Texas

Overall
Durability
Value
Features
Design
Usability

Great sounding speakers

May 26, 2014

I highly recommend these speakers they have great quality and workmanship.. Will last a long time without letting off sound. Highly also they scream and sound great. I highly recommend these speakers.. Great deal

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fisher

Hardwick, MN

Overall
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Value
Features
Design
Usability

Works great

May 26, 2014

Self installed these in the pontoon and they work great. Good sound and looks.

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TY

Bismarck ND

Overall
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Value
Features
Design
Usability

Great product for the money.

April 28, 2014

The speakers sound great in my boat, they also match the seat inserts so they look nice as well. Always had great luck with Infinity.

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Jrd1979

Wichita, KS

Overall
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Value
Features
Design
Usability

Great Sound

April 10, 2014

I bought these speakers after hearing them on my friend's boat and paired them with a Kenwood digital medial receiver. I was looking to replace an older Sony system. They sound great. I would recommend the speakers to anyone looking to upgrade the sound quality of their system.

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None

Dallas,Texas

Overall
Durability
Value
Features
Design
Usability

Nice Product

March 27, 2014

I ordered the Infinity Marine Grade 6.5 inch speakers and they are exceptional and I am enjoying them.

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jeremy

kansas

Overall
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Value
Features
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Usability

you will be happy

March 24, 2014

These are very loud and perfectly clear at loud volumes. I have them in a 17 ft boat hooked to 55 watt rms amp, they are clear/ loud and perfect for noisy environments, highly recommended, along with sonic electronix this is my 3rd or 4 th order and every time I am pleased, thank you!!!

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Dan

Upper Sandusky, Ohio

Overall
Durability
Value
Features
Design
Usability

Great value, powerful sound

February 10, 2014

I bought a pair of Infinity marine 612m for are golf cart because the old speaker buzzed when we would start turning up the power , but not the Infinity 612m they can handle the watts. very pleased .

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Roy

Houston, tx

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Value
Features
Design
Usability

Great value!! And sound!!

May 6, 2013

I bought these speakers for an audio tube I was building for my atv and they sound great.

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Rebel Yell

Denver, NC

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Durability
Value
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Usability

They Suck

June 20, 2012

Purchased 4 of these to replace blown factory speakers. Have 320 amp 4 Channel JL amps powering them. Rated at 60 watts per channel. Speakers cannot handle any pressure at all. Have lows turned completely out of them and they still break apart with half volume. Sonic is great to purchase from, but the Infinitys are a major bust. For the money, Im going back with JLs.

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Truckracer

Norman, OK

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Value
Features
Design
Usability

Not impressed..

April 23, 2012

I installed 4 of these 3 days ago, powered from a Kenwood KMR-550 into an Infinity 5761a amp. Sound was ok at low volume levels but quickly turned harsh when cranking it up just before it turned into full blown distortion. I have owned several sets of Infinity speakers in multiple applications and have never had any that sounded like these. I have pulled them out and I am going to try some Kenwoods.

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Scott

Kansas City, MO

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Value
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Usability

Infinity Marine 612 Speakers

March 30, 2012

Just finished putting 2 pair of the 612s in my Crownline 270 BR. Great sound, plenty of bass!! Great looks, Looks like they are well designed. I appreciate the technical help I had matching up the speakers with my Sony Receiver, 800 watt power amp and 300 watt powered subwoofer. The sound is amazing. Can't wait till summer.

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skipper

loveland ohio

Overall
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Value
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Usability

great speakers

January 21, 2012

Just finished putting a pair of the 612s in my deckboat. I also installed a pair of the 6912s. Great sound, plenty of bass!! Great looks, Looks like they are well designed. Have a sony receiver that they are hooked up to. Thought I might need a amp, but after hearing them, I think they are fine. 52 watts is fine for me!!! Sonic was very easy to order from. Good prices, and service was fantastic! Will be using Sonic for all my stereo needs. Can't wait till spring. Hope you hear me out there!!

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big dog

california

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Value
Features
Design
Usability

great speakers

November 10, 2011

I bought these for my 232 sunesta deck boat. What a great speaker and what a HUGE upgrade. Replaced factory JBL. Should have done it years ago we are now rocking the lake with some real tunes.

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Frank

Pittsburg, TX

Overall
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Value
Features
Design
Usability

Great speaker

September 15, 2011

These speakers have been way better than I expected. I recommend these speakers to anyone who is looking for a good looking, sounding marine speaker.

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Pete

Lighthouse Point, Fl

Overall
Durability
Value
Features
Design
Usability

Much Better

September 13, 2011

My original Clarion marine speakers had rotted out in a short amount of time. I chose the 612M because of Infinity reputation and the look. For a small increase in purchase price over the Clarions I was shocked after installation of how much better they sounded and they look great. I get many compliments on the look. I would recommend these speakers for sure.

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mecforyou

Cedar Rapids Iowa

Overall
Durability
Value
Features
Design
Usability

made it 1 year

February 6, 2011

Loved the looks of these speakers. We run them off a 600w amp. The first year and into the 2nd year they sounded GREAT but the wife loves stereo wars and 1/2 way through last summer the first speaker went and by the end of summer the other 3 gave up. I don't think any speaker could have held up and most would have been gone the first year. I'm looking at there 6*9 to replace these and adding 4 more of the 612M and a sub. So yes I'm buying these again.

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ItalianDJP

Ca

Overall
Durability
Value
Features
Design
Usability

Infinity Marine 612m

December 15, 2010

Excellent Speaker. Clean highs, decent mid range punch. Good when turned down or jaming loud n long

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chad

tr. NJ

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Durability
Value
Features
Design
Usability

worth the money

December 13, 2010

They last in the weather and sound great!!

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Product Summary

Manufacturer

Model Number

612M

UPC

050667110239

Weight

7.00lbs

Internal SKU

612m

Internal Product ID

18858

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Infinity 612M