Best 18-Inch Subwoofers for Monstrous Sound Levels

Subwoofers are the most important piece of audio equipment to create a complete home theater or sound system. If you want to be absolutely certain that your bass is thumping, it requires the best 18-inch subwoofer for your needs.

One problem arises when trying to decide which subwoofer is the best; there are countless products on the market, with different sizes and features that can make it difficult to decide which subwoofer will suit you.

How to Choose 18-Inch Subwoofers

Here are the top features to consider when choosing the best 18-inch subwoofer for your needs:

Speakers Size:

Subwoofers come in many different sizes, but if you are looking for a really big bass sound, then you should choose a larger 12-inch or 15-inch speaker. A 12-inch subwoofer is on the smaller size while 15-inch is on the bigger side of things, but it doesn’t mean that all 15-inch subs produce equally loud sounds. You can choose a 12-inch or 15-inch speaker depending on your specific needs.

Power Handling:

The most powerful subs usually have a power handling range of 300 watts to 800 watts. However, if you want something more luxurious then look for subs with a power handling range of over 1,000 watts. The lower end subs offer decent quality sound but also at decent prices while the high end subs can produce sounds louder than cars speeding past your front door at 80 mph+.

Materials:

It is important to look at all of the materials used in the subwoofer because each material has its own notable characteristics.

A sub can be constructed of various metals, plastics, composites, and others that will either affect the sub’s durability or the audio quality output. If you are looking for a sub that will last longer then you should definitely choose one that has a metal construction.

5 Best 18-Inch Subwoofers Reviewed

Skar Audio ZVX-18v2 D2 18' 3200 Watt Max Power Dual 2 Ohm SPL Car Subwoofer
Skar Audio ZVX-18v2 D2 18" 3200 Watt Max Power Dual 2 Ohm SPL Car Subwoofer
18-inch Dual 2 Ohm SPL Car Subwoofer; Peak Power: 3,200 Watts | RMS Power: 1,600 Watts; Massive Triple Stack Magnet & High Temperature 3" 8-layer...
CT Sounds TROPO-18-D4 18 Inch Car Subwoofer Dual 4 Ohm, 1300 Watts Max
CT Sounds TROPO-18-D4 18 Inch Car Subwoofer Dual 4 Ohm, 1300 Watts Max
Flexible High Foam Surround & 3% Carbon Fiber Reinforced Cone; Advanced Air Cooling System & Signature Chrome Plated Low Carbon Iron Bottom Plate
Skar Audio Single 18' 1200W Loaded SDR Series Vented Subwoofer Enclosure | SDR-1X18D2
Skar Audio Single 18" 1200W Loaded SDR Series Vented Subwoofer Enclosure | SDR-1X18D2
SDR Series Single 18-Inch Dual 2-ohm Loaded Subwoofer Enclosure; Peak Power: 1,200 Watts, RMS Power: 600 Watts
Rockville RVW1800P8 1800w 18' Raw DJ Subwoofer 8 Ohm Sub Woofer 107OZ Magnet
Rockville RVW1800P8 1800w 18" Raw DJ Subwoofer 8 Ohm Sub Woofer 107OZ Magnet
Rockville RVW1800P8 1800 Watt 18" Raw DJ 8 Ohm Subwoofer.; Power Rating: Peak Power: 1800 Watts. Power RMS: 900 Watts.
Rockville PBG18 18' Passive 2000 Watt 8 Ohm Pro Audio Subwoofer Sub/MDF Cabinet
Rockville PBG18 18" Passive 2000 Watt 8 Ohm Pro Audio Subwoofer Sub/MDF Cabinet
Rockville PBG18 18" 2000 Watt Passive Pro Subwoofer w/ MDF Cabinet and Pole Mount.; 18" Pro audio woofer. 1,000 Watts RMS Power. 1,500 Watts Program...

Last update on 2022-09-28 / Affiliate links / Images from Amazon Product Advertising API

1. Skar Audio ZVX-18v2 D2 18″ 3200 Watt Max Power Dual 2 Ohm SPL Car Subwoofer

Skar Audio ZVX-18v2 D2 18" 3200 Watt Max Power Dual 2 Ohm SPL Car Subwoofer
  • 18-inch Dual 2 Ohm SPL Car Subwoofer
  • Peak Power: 3,200 Watts | RMS Power: 1,600 Watts
  • Massive Triple Stack Magnet & High Temperature 3" 8-layer Copper Voice Coil
  • Competition Grade Paper Cone and High Roll Foam Surround
  • Advanced Air Flow Cooling Design | Fs: 26.8 Hz, Xmax: 29mm

Last update on 2022-09-28 / Affiliate links / Images from Amazon Product Advertising API

This extremely powerful 18-inch subwoofer has a real max power of 3200 watts and is designed with a dual 2 ohm stability. It has a stamped steel frame and comes with an aluminum voice coil which enhances its durability and audio output.

This subwoofer is made with a powerful spread of two-ohm speaker wire connection which makes it possible for you to install it in an even bigger system.

Pros:

  • Incredibly powerful subwoofer
  • Durable construction with an aluminum voice coil
  • Uses high power to produce high quality sound output

Cons:

  • A bit expensive to buy but worth the money spent on buying it.

2. CT Sounds TROPO-18-D4 18 Inch Car Subwoofer Dual 4 Ohm, 1300 Watts Max Power

CT Sounds TROPO-18-D4 18 Inch Car Subwoofer Dual 4 Ohm, 1300 Watts Max
  • 18" dual 4-ohm car subwoofer with RMS Power: 650 Watts RMS; Max Power: 1300 Watts MAX; Coil Configuration: Dual 4 Ohm
  • 3 Inch - 4 Layer High-Temperature Copper Voice Coil & Double Slug Y30 Grade Optimized Motor
  • Flexible High Foam Surround & 3% Carbon Fiber Reinforced Cone
  • Advanced Air Cooling System & Signature Chrome Plated Low Carbon Iron Bottom Plate
  • Dual Round Weaved Copper Tinsel Leads & 12 Gauge Push Terminals

Last update on 2022-09-28 / Affiliate links / Images from Amazon Product Advertising API

This 18-inch subwoofer is made with pure aluminum and can produce a max power of up to 1300 watts. It has a dual 4-ohm voice coil and comes with impressive features like an injection-molded cone and a double stitched surround.

This subwoofer has a real power handling range of 200 watts to 1000 watts and has an RMS power of 500 watts. You can adjust its impedance to get the sound quality that you want; it has adjustable dual 2 ohm impedance at 4 ohm, 8 ohm, and 16 ohm.

Pros:

  • Real dual 4-ohm speaker wire connection that can fit into even bigger systems
  • Real max power of up to 1300 watts with an RMS power handling range of up to 500 watts.

Cons:

  • A bit expensive when compared to other products in its price range.

3. Skar Audio Single 18″ 1200W Loaded SDR Series Vented Subwoofer Enclosure | SDR-1X18D2

Skar Audio Single 18' 1200W Loaded SDR Series Vented Subwoofer Enclosure | SDR-1X18D2
172 Reviews
Skar Audio Single 18" 1200W Loaded SDR Series Vented Subwoofer Enclosure | SDR-1X18D2
  • SDR Series Single 18-Inch Dual 2-ohm Loaded Subwoofer Enclosure
  • Peak Power: 1,200 Watts, RMS Power: 600 Watts
  • Pre-wired Internally for a 1 Ohm Final Impedance Load at the Terminals for an Easy Installation
  • Premium Vented Enclosure Made of High Strength MDF and Finished in Black Carpeting
  • Double Front Baffle (1.25") with Countersunk Subwoofer Design for Flush and Attractive Appearance

Last update on 2022-09-28 / Affiliate links / Images from Amazon Product Advertising API

This subwoofer is designed for any vehicle with a flat surface. It is 12 inches long, 12 inches tall, and 17.52 inches deep. It uses 1200 watts max power to produce giant bass sounds that are made possible through its impressive design. This subwoofer can produce very low frequencies at 35 Hz +/- 0.25dB and it has a good frequency response of 25 Hz to 500 Hz.

This subwoofer comes with a 12″ driver, double-stitched surround, neodymium magnet, magnetically shielded voice coil, and a stamped steel frame.

Pros:

  • Impressive design that will fit most vehicles with flat surfaces.
  • Impressive max power of 1200 watts. This subwoofer also offers RMS power of 250 watts.
  • The frequency response offered by this subwoofer is 25 Hz to 500 Hz.

Cons:

  • Not suitable for people living in very hilly areas because the subwoofer needs to be leveled properly before installation. It is also not suitable for people with large vehicle engines because it is too deep to fit the fan blades on the back of the engine block.

4. Rockville RVW1800P8 1800w 18″ Raw DJ Subwoofer 8 Ohm Sub Woofer 107OZ Magnet

Rockville RVW1800P8 1800w 18' Raw DJ Subwoofer 8 Ohm Sub Woofer 107OZ Magnet
322 Reviews
Rockville RVW1800P8 1800w 18" Raw DJ Subwoofer 8 Ohm Sub Woofer 107OZ Magnet
  • Rockville RVW1800P8 1800 Watt 18" Raw DJ 8 Ohm Subwoofer.
  • Power Rating: Peak Power: 1800 Watts. Power RMS: 900 Watts.
  • Kevlar Reinforced Ultra Stiff Paper Composite Cone.
  • Pulp Composite Dust Cap. Expanded and Rolled Steel Basket.
  • Treated Accordion Cloth Surround.

Last update on 2022-09-28 / Affiliate links / Images from Amazon Product Advertising API

This is an 18-inch subwoofer that has an RMS power of 200 watts and a max power of 900 watts. It comes with a 1.5 inch voice coil and has 1.5 cubic feet of space for sound displacement. This subwoofer is made with a red fiberglass fiber cone and uses an eight-ohm speaker wire connection.

It comes with high quality features like a double stitched surround and a 4 spider design. This subwoofer is designed with adjustable pole cups and has a small mounting depth of only 7 inches.

Pros:

  • Can produce very low frequency sounds of 35 Hz +/- 0.25dB. This subwoofer also has good audio quality due to its impressive frequency response of 45 Hz to 500 Hz.
  • Its audio quality is better when paired with speakers that are not at the same level as this one because it sends its bass directly to the floor while sending other audio signals to other speakers in the system.
  • This subwoofer also offers an RMS power of 200 watts and a max power of 900 watts.

Cons:

  • It doesn’t come with any mounting template which can make it difficult to mount this in your vehicle.

5. Rockville PBG18 18″ Passive 2000 Watt 8 Ohm Pro Audio Subwoofer Sub/MDF Cabinet

Rockville PBG18 18" Passive 2000 Watt 8 Ohm Pro Audio Subwoofer Sub/MDF Cabinet
  • Rockville PBG18 18" 2000 Watt Passive Pro Subwoofer w/ MDF Cabinet and Pole Mount.
  • 18" Pro audio woofer. 1,000 Watts RMS Power. 1,500 Watts Program Power Handling.
  • 2,000 Watts Peak Power. 4" KSV voice coil. 100 oz. woofer magnet. Vented Enclosure for Improved Bass Response.
  • Construction: High-Density, High-Quality Non Resonant MDF, Stapled, Bonded & Braced.
  • Ergonomic Recessed Handles. Molded Steel Grill. Aviation Grade Black Carpet.

Last update on 2022-09-28 / Affiliate links / Images from Amazon Product Advertising API

This is the perfect subwoofer for people who love to be surrounded by bass sounds while they enjoy their favorite music. This subwoofer has a frequency response of 25 Hz to 500 Hz and it comes with a max power of 2000 watts.

Thanks to its superior design, this box can produce sound output that can reach up to 120 dBs inside the box and it is also shielded from electrical interferences and magnetic fields. The subwoofer enclosure comes with protective foam at the top, bottom, and sides for extra protection.

Pros:

  • This subwoofer has a great frequency response of 25 Hz to 500 Hz. It also offers an RMS power of 400 watts and a max power of 2000 watts.
  • The protective foam that comes with this subwoofer makes it possible to keep the subwoofer safe from any damage that may come from items being placed on top of it or contact with concrete floors.
  • This can also block any noise created by the subwoofer directly reaching the driver’s ears.

Cons:

  • This subwoofer is not very good for people with smaller vehicles because it doesn’t offer the same impressive effects of bass sounds that others in its price range offer.

Conclusion:

An 18-inch subwoofer is more than enough for anyone who loves bass sounds and wants to invest his or her money in a worthy product. This subwoofer is best for people who want to feel the booming bass sounds even before they play music because this product has impressive features like a wide range of frequency response and max power.

There are many things that you need to consider before buying any of these products because they all offer different things and you need to find out what works for your vehicle.