While greater size does virtually mean greater power, there are a lot of other things you need to consider before investing into the best 18 inch subwoofer. Yes, it is an investment, this is probably going to cost you more than what you would spend on an amplifier and a subwoofer combined.
The biggest roadblock would be to get an 18 inch subwoofer to work with your car’s electrical system powering it. If you do think that your car can take that amount of load, another obstacle would be fixing this gigantic subwoofer in your car. If you manage to have those two things in order, you are officially ready for more power and more bass.
An 18 inch subwoofer is no joke and trust me when I say this, you will feel the bass to your very core. So if that is not necessarily your thing, you might want to go for smaller subwoofers with a less amount of bass and power. But for those of you who intend on playing your soul out of your body, you are on the right track.
There is obviously a much smaller market that caters to the 18 inch subwoofer folk and this is because of the problems that follow the accommodation of these subwoofers. This is not necessarily a bad thing as there are less options you would have to sieve through to get to the good ones and the brands producing the subs know they have an easier market so they produce products of good quality.
Since they do make a pretty huge dent in your bank account, you would undoubtedly want to be certain that you are getting the most out of your money. Consequently, to make things easier for you, given below is a list of some of the best 18 inch car subwoofers available in the market. It has taken a lot of research for me to be able to say, “You can blindly put your trust into these.”
Top 5: Best 18 inch subwoofers
Skar Audio ZVX-18v2

We are going to start off strong with a brand that everyone loves and adores. If you have been a car audio enthusiast for a while now and I am guessing, since you have been considering the fact that you are looking for 18 inch monster subwoofers, you probably have had products from Skar Audio or have always wanted to get some. Well now is a time as good as any. I could spend a lot of time just praising the brand for its regular and quality deliverance but we will probably be stuck here for long if I did. So we are going to jump straight into the subwoofer at hand, which is the Skar Audio ZVX-18v2.
Just like any other 18 inch subwoofer, this one is really high power. (You can expect this for all of the subwoofers that are going to be mentioned from here on out.) It has a RMS Power of 1600 Watts and its peak power sits at a massive 3200 watts. You might want to hold onto your seat when dealing with this one. Not only does it have great power, it also has very low impedance. This is rare when it comes to high power subwoofers.
This subwoofer has an impedance of 2 ohms, so it will not be too bad to your amplifier either. The competition grade cone that makes up the sub is surrounded by a high roll foam. This ensures that you get the best sound in terms of clarity. The voice coil used in this product can withstand a very high amount of heat and will not be causing any sound cuts due to temperature related reasons. If I were to put it across plainly, this is the most basic and thought through subwoofer design to ever have existed. It does not aim too high and does what it has to in the best of its capacity.
The price makes it a knockout product, as it is quite less in comparison to most subwoofers in this category. Easily a potential buy for people who want both power and longevity.
An overview:
- Decent amount of power
- Low impedance
- Strong make
- Fuller sound (Foam surround)
- Durable voice coil
- Low price point
DS18 TM-SN18 Troublemaker

Pathetic pun plug-in: If you want a subwoofer that will get you in trouble, go for the troublemaker. That joke did not hit home, did it? Well, this subwoofer will. This subwoofer is definitely not made for normal people. It is made specifically for people who like to make their presence known. You could quite easily hear this subwoofer from a mile away. If pissing off your neighbours and pumping out beats like you do not care about anything or anyone around you, is your brand, pick this subwoofer. Trust me, you will not regret it.
This subwoofer has a RMS Power of 5000 watts. Yes, you heard me, 5000 watts. And we haven’t even gotten to the best part yet. The peak power sits at a whopping 7500 watts. Now I am no medical expert but this amount of power in a subwoofer is probably enough to shatter your bones.(It’s not, but it sure as hell might feel like it.) This is not to say that all of the beats are just going to sound like mindless noise.
No, the best part about this subwoofer is probably the audio regulation it is capable of. The sensitivity of the speaker is 93.5 db which is just enough to cancel out any distortion that might be caused by either sounds of a frequency too low or one too high. This is normally a breaking point for a lot of subwoofers. Luckily, not for this one. You have got your eyes on just the right one.
It consists of 6 neodymium magnets to hold the kind of power that this subwoofer possesses. It also has a black aluminum 4 layer coil which can withstand a very high temperature, a feature that is almost essential in all subwoofers for the best possible performance. All of these components make up for a very sturdy and high quality construction. Downsides are quite basic and easy to spot, the huge price tag would be where I would start. Second would indefinitely be the power consumption but that just goes hand in hand with the kind of bass this subwoofer offers.
Other than that, if you really want a bass that could quite literally blow people away, you are looking at just the right product.
An overview:
- High power
- Ideal noise sensitivity
- Strong and sustainable build
- Expensive (X)
- High power consumption (X)
Lanzar Distinct (DCTOA18D)

As far as budget friendly, affordable subwoofers go, this is probably the only subwoofer you will find with a price tag as low. Especially when we are talking about 18 inch subwoofers. While the fascination of getting massive subwoofers is understandable, you really need to have the practical aspect, aka, the installation of the subwoofers in check. While this does come under the ‘big subwoofers category’ in terms of power, its deliverance could easily be compared to that of a 12 inch or 8 inch subwoofer.
With a RMS Power of 300 watts, you get exactly what you paid for. The peak power of this subwoofer is about 600 watts. Overall, it gets the job done and for the price of it, it definitely does deliver but the whole ordeal of installing a massive subwoofer to only get a RMS Power of 300 watts, seems a little redundant.
The only other thing, I would say, that goes in favour of the Lanzar Distinct (DCTOA18D) is sustainability and dependability of the product. Because it is a very basic model that adheres to the very basic functions, the longevity of this subwoofer is quite high in comparison to most other subwoofers. A strong make and high quality components ensure that this subwoofer, even though not that big of an investment, will last you a lifetime. The foam surround helps in creating a fuller and deeper sound which does enhance the whole music experience. All in all, for the price there is nothing wrong with the product and it does hold up for quite a while.
If you are looking for a low power subwoofer that will last you forever without ripping you a new one, go for the Lanzar Distinct (DCTOA18D).
An overview:
- Affordable
- Sustainable
- Great sound delivery
- Low power (X)
B&C 18SW115-4 18-Inch Neodymium Subwoofer

This might seem a little too expensive and if I am being completely honest, it kind of is. But you will be getting all that you pay for with this speaker. It has just the perfect amount of power, neither too much nor too little. It has a RMS Power of 1700 watts and a peak power of 3400 watts.
It is easily one of the higher power subwoofers and it does what it is supposed to do and a lot of people know that it does it well. There are a couple of features that make this product stand out and justify the hefty price tag that it comes with. Sure it is going to burn a hole through your pocket but it is going to burn it with a 4.5 inch long copper coil and a demodulation ring.
The bigger the voice coil and the more sustainable it is, greater the audio quality and life of your subwoofer. It is going to last you a good while and it is going to make sure that while it does, it gives you nothing but the best.
Besides the usual noise sensitivity that helps regulate the sound, this subwoofer also consists of a demodulation ring made up of aluminum. This ring further aids the smooth flow of audio. You will not be listening to any high pitched, harsh sounds with this subwoofer. It has a neodymium magnet at its core which ensures both good delivery and longevity. It does have a high impedance of 4 ohms but the heat is dissipated by the ventilated construction of the subwoofer. The neodymium magnet also helps take in some of the heat and enhance the overall functioning of the subwoofer.
So if money is not an issue for you and you want to invest into a reliable and good quality subwoofer, this one is definitely right up your alley.
An overview:
- High Power
- 4.5 inch long voice coil
- Ventilated design
- Consists of a demodulation ring
- Strong core magnet
- High impedance (X)
- Expensive (X)
Audiopipe TXXBD2W18D2

Audiopipe as a brand of car audio output systems has delivered numerous best selling products in the past. Their products are both reasonably priced and at par with the ever evolving market. This subwoofer by the Audiopipe is no exception to their usual product delivery. It delivers everything you could expect out of a subwoofer and probably more. It is an absolute banger in terms of both power output and power consumption.
It has a RMS Power of 1500 watts and its peak power sits at 3000 watts. This is average for a lot of 18 inch speakers and is amazing for the price you are getting it at. It has an impedance of 2 ohms on a dual coil, which means the power consumption is also ideal for most cars. It has a 2 inch voice coil and a 250 ounce magnet.
Overall, it provides all of what you would want from a subwoofer and is an easy buy for people who want to save some extra money and still get the best out of what they spend.
Conclusion
Limited options in no way means compromise and the above given list is an evidence of that. While there are numerous options available in the market, choosing the right one can be quite difficult. Now that you have a list of some of the best selling subwoofers in the market, the filtration process might seem quite easy. Just apply your preferences and make a pick.
