The Sound Of Water
Naturally, sound works exactly the same on the water as it does on land. A source of vibrations sends waves through the atmosphere, our ears pick them up, and our brain tells us what they sound like. While marine audio operates a lot like car audio does, it is a separate field. With such constant high humidity, the generally unrelenting sunshine, and the often high temperatures all commonly encountered at sea, selecting audio equipment for the boat in your life is a different quest than making your sedan bump.
Kenwood 1177524

Wireless controls: The amplifier comes with a wireless remote control for adjusting the volume and changing music tracks. The remote control makes it easy to control the amplifier from anywhere around your boat within the suitable radius.
Compact design: This amp has a compact design unlike some of its competitors that appear bulky. Its compact design makes it possible to fit even in the smallest spaces in your boat while still making it easier to conceal.
Class D amplifier: The Kenwood 117752is categorized as a Class D marine amplifier, and this comes with many benefits. For instance, it minimizes power wasted as heat and has higher conversion of amplifier power.
Bluetooth technology: This amp is one of the few marine amps that boasts of having Bluetooth capability. Its Bluetooth functionality allows a user to connect their Bluetooth capable portable devices such as smartphones and music players to their boat.

Four channels: You will be amazed to find out that this amplifier comes with channels. This means that you will be able to connect more speakers, including a subwoofer for enhanced audio and bass.
Pyle Hydra PLMRA420
The Pyle Hydra PLMRA420 is designed as a bridgeable amp. It has channels that can be bridged into dedicated channels. Bridging the amp channels makes it possible to increase its overall power output. You can bridge its channels to power a more powerful marine subwoofer for enhanced bass.
Lacks output controls
Our Verdict: Boat owners looking for an affordable marine amp with Bluetooth support and wireless control should include this amp in their shortlist. Moreover, you can charge your connected Bluetooth device with its USB port. However, you can only pair one device at a time.
No wireless controls
Our Verdict: If you are looking for a really affordable marine amplifier, then you should consider the Clarion XC24It’ll serve you just like the expensive options, but it does not come with Bluetooth functionality and wireless control.
RMS Power
An amplifier’s RMS power rating indicates the power rating that will make each connected speaker sound best. Higher RMS power results to better audio quality. However, you will have to consider the maximum and minimum RMS power rating for the speakers as well. In most cases, subwoofers demand higher RMS rating when compared to speakers. Thus, consider the RMS of your marine speakers and subwoofer before investing in an amplifier.
Ease of Installation

Some marine amps do not come with installation kits. If you’re not careful, you might end up buying an amp that does not have wiring or a matching installation kit. In such cases, you’ll be required to order separate installation kits. The best way forward is investing in an amplifier that comes with an installation kit that is ideal for the sea environment.
In general, the installation kit should come with marine rated cables and any other necessary connectors. Also, the amplifier should be easy to install even in smaller spaces.
RMS Continuous Power
The RMS rating of an amplifier describes the amount of driving power at which each speaker will sound its best.
The higher the number usually relates in the better sound quality but you will need to figure out the optimum minimum and maximum power for your speakers.

Your subwoofer may require a higher RMS than your aftermarket speakers and its vital that you check the ratings before choosing your amplifier.
Kenwood KAC-M1814
All products come in a variety of shapes and sizes – and marine amplifiers are no different. You’ll find a wide range of different casings, dimensions, and weights out there when you look at these products. Respectively, your choice should be influenced by how reliable they are, how much room you have available to site your new amplifier, and when you are going to set it on your watercraft.
The stronger the casing, the more knocks and abuse your amplifier will be able to withstand. In terms of the size of your amplifier, be sure that you buy something that fits in the space that you have available – and pay heed to any recommended clearances.
The more channels your marine amplifier has, in theory, the more versatility you get. More channels, with the right planning, means that you can extend a sound system later if your initial budget is limited. Having a couple of spare channels also means you can bridge channels to install a more bass-oriented speaker – but more on that later.
In short, if you want to run and stick with a couple of speakers and keep things simple, a two-channel amp will do the job.
RMS power is something you’ll need to take greater account of when it comes to planning your sound system. That goes for even the simplest of marine audio set-ups, not just when you get into more complicated systems. If you don’t match up the RMS ratings of speakers with their assigned channels on our marine amplifier, you are going to hit trouble immediately. When you begin thinking about any marine audio system, in any setting, and with any equipment configuration, the main thing to remember is to pay attention to the RMS ratings of all pieces of the sound system.
When it comes to the task of speaker specification, take great care to ensure that you buy an amplifier which features a top RMS output per channel that in no way exceeds the top RMS rating of each speaker that you’re going to be installing. Failing to take this step correctly will mean that your whole sound system will fail to work properly..