Infinity Reference 612m Marine Speaker

Infinity Reference 612m Marine Speaker Review

Whether you want to spend a day on the boat all by yourself or with family and friends, one is for sure – you will need a quality speaker to make your day even better. Marine speakers are specificallydesigned to provide good sound quality, while not getting damaged by the exposure to the salt, water, and UV rays.

Now, with a plethora of marine speakers out there, choosing a good one can be a confusing task, but we are here to help you out. This article is focused on one product only, as we believe that every good marine speaker deserves to get a carefullywritten and detailedreview. We will talk about the good and the bad of the Infinity 612m, leaving you to decide whether this pair of speakers would be the perfect one for your boat or not.

Click Here to See Our List of the 5 Best Marine Speakers.


Every person who wants only the best sound for their boat has heard of Infinity – one of the best companies when it comes to marine audio speakers. With that being said, here we have one of the best models that Infinity made – The Infinity 612m Loudspeaker. With high-quality materials and parts, this pair of speakers will last you a long time, withstanding all the elements. Not only that but also these speakers are easy on the eyes, thanks to their stylish and unique design. In addition, these speakers deliver excellent sound quality, since they have RMS of 75 watts, and their peak power is 225 watts. The frequency response is 50 Hz – 20 kHz that means you will enjoy the clear and loud sound while admiring the waves and the power of wind. If you’re looking to buy a marine speaker that has it all – well, this is the way to go.

Highlighted features:

  • Weight: 5 pounds
  • Dimensions: 10 x 5 x 5 inches
  • Power Handling, RMS: 75 Watts
  • Power Handling (Peak): 225 watts
  • Frequency response: 50 Hz – 20 kHz
  • Sensitivity: 92dB
  • Impedance: 4 Ohms
  • Mounting Depth: 2 – 5/8 inches
  • UV-resistant rubber surrounds
  • Polypropylene woofer cones
  • Polypropylene semi-dome tweeter

The package includes:

  • A pair of two-way 612m speakers
  • Mounting hardware
  • The manual


We must admit, we fell in love with the looks of this speaker the moment we saw it. Its design and silver color make it a shiny addition to any marine sound system and boat, making you proud of this unit. What we also love is that despite its shiny color, the speaker is not too much. It is kind of simple and stylish at the same time, which is why it is one of the best-looking marine speakers on the market. Best of all, you don’t have to worry whether this speaker will match with the looks of your boat because it certainly will.

Apart from the cool looks, this speaker is extremely well built. Polypropylene woofer cones are lightweight and stiff, ensuring durability. The woofer surround material is UV-resistant, protecting the speaker from harmful UV rays. Moreover, this material will ensure optimal cone-edge suspension and will also absorb distortion, making the lows strong and clear.

A magnet structure and a sealed cone are designed to withstand extra moisture, while the grille won’tlost its finish. Not only that, but this speaker also features a cast polymer basket that won’t corrode.

That being said, you can see why Infinity delivers some of the best marine audio speakers. For decades, they are dedicated to improving their products, so each time, theybring a better one. Without a doubt, this pair ofspeakers will handle all the elements, without actually compromising the sound quality.


Now, let’s get into the details of the sound quality. This is the two-way speaker,therefore; it can produce both lows and highs of good quality. In addition, the speaker features a grille-mounted 1 ¼ inches semi-dome tweeter. A tweeter is a speaker driver responsible for producing highest range frequency. What also adds up to the high-quality sound is 92dB sensitivity. With all this being said, it is not surprising that these speakers deliver clear sound without distortion. The treble is crisp and the bass is good, making the sound rich.

Thanks to the quality parts, this speaker works great without an amplifier. However, if you do want to have a loud and powerful sound system, keep in mind that this speaker is a 4-ohm. What’s more, the speaker has RMS of 75 watts and peak power of 225 watts. For those of you who are not familiar with the terms “peak power” and “continuous power”, here’s a brief explanation.

RMS (root mean square) power handling refers to the continuous power that a speaker can handle. On the other hand, the peak power handling refers to how much power a speaker can stand in short bursts.  Meaning, you will have to buy an amplifier that can bear the power of this speaker. If this information isn’t available in the product’s description, we suggest you contact the seller and ask whether or not a certain amplifier can handle this speaker. You probably don’t want to end up with a useless amplifier and wasted money, do you?


The installation is fairly easy though it will take some time. In addition, some users said they would appreciate mounting instructions. However, the package includes stainless steel mounting hardware, which makes the installation a whole lot easier.


Premium sound, top-notch design, and durability– we’ve told you that this speaker has it all. Surprisingly, this speaker comes at a reasonable price, which is one more reason why you should buy it. You can get this pair of speakers for under $200 and enjoy the perfect sound for years to come.


High-quality sound

Cool-looking design




The mounting directions could have been included in the package

The installation takes time


Well, that would be all from us. Now that you have a better understanding of what this pair of speakers has to offer you, you will be able to decide is it worth buying. With all the amazing features and few cons, we firmly believe you will be satisfied with this model. So, why not buy one and see it for yourself?

Review Summary
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Reviewed Item
Infinity Reference 612m Marine Speaker

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