How to Make a Subwoofer Box Sound Better

When you’re looking to improve the sound quality of your car audio system, adding a subwoofer is a great way to go. But if you don’t have the proper enclosure for your subwoofer, it will not sound as good as it could.

How to Make a Subwoofer Box Sound Better

This article will show you how to make a subwoofer box sound better. You can get the most out of your subwoofer and crank up the bass by following these simple steps! We’ll also give you tips on choosing the correct box for your needs. So read on to learn more!

What is a Subwoofer box

A Subwoofer box is an enclosure that houses the speaker. It helps keep your subwoofer from making sounds it should not be making, thus helping create a better sound.

A subwoofer is a type of speaker that helps create low-pitched sounds in music. A good box for a subwoofer will make the speaker louder and improve the quality of the sound. This will make listening to music more enjoyable.

10 Ways on How to Make a Subwoofer Box Sound Better

1. Tweak Your Subwoofer Box:

The first step is to make sure the subwoofer box you use for your subwoofers has what it takes to make them sound good. Some boxes are built better than others and might already be able to handle what your subwoofer can dish out.

If you used a premade subwoofer box, try using different screws/washers/bolts to secure the box better. If you built your subwoofer box, try using more bracing or different braces to reinforce it to handle more power. Create a larger port for higher airflow if your subwoofer is not producing enough sound.

2. Use Polyfill:

Polyfill helps to absorb sound and reduce its impact on the surrounding air. It is often used in a loose-fill form, making it easy to stuff into an enclosure. This helps to keep various frequencies from affecting each other, creating a more peaceful environment.

Polyfill works better in some enclosures than others, but it does have a noticeable positive effect on sound quality, especially in small studio subwoofer boxes.

3. Position Subwoofer Correctly:

When positioning your subwoofers, try to avoid putting them too close to corners. Bass waves can reflect off of walls, causing the subwoofer to focus on specific frequencies.

If possible, place your subwoofers at least 1 foot away from any walls, so they do not get unnatural echoes or reflections. This tip works best if you have two subwoofers positioned symmetrically around the listener.

Place 1 Foot Away From Any Walls

4. Use a Subwoofer That is the Right Size for Your Enclosure:

The best subwoofers are usually designed to work within specific-sized boxes. So, make sure you use the correct size when building your box or buying one that is premade. For an 8-inch subwoofer, you should probably use a 5-inch subwoofer for the best sound quality.

If you do not use the right subwoofer size for your box, the sub will play frequencies it is not supposed to and might break or underperform.

5. Use Sealed Enclosure:

The main purpose of a subwoofer enclosure is to keep the sound from escaping. A sealed enclosure is one where no air or sound can escape from it instead of an open-backed cabinet. In a car environment, all the sounds your subwoofers produce stay inside the box and do not affect other sounds inside the car.

This will balance your whole sound system and the sounds you experience the way they were meant to be heard, especially on long road trips where drivers might get tired of listening to their music.

6. Add Bass Boost:

You could also try adding a bass boost, preferably through an equalizer that allows you to adjust the levels of each frequency band. This will help keep your subwoofers’ sounds within a certain range, so they don’t mess up any other frequencies in your system.

Unfortunately, there is no quick way to explain how much extra bass boost you need, but if others complain that there is too much bass, it never hurts to turn down the bass a notch or add a bit of bass boost.

7. Make Room for More Power:

The next thing you can do is make sure your subwoofers have enough power to give off great sound quality. If you are using an amplifier with low wattage, try getting one with a higher wattage to push your subwoofers harder.

Using Higher Wattage Amplifier

This might not be the best solution if you’re using a higher wattage amp, but there may be other ways to modify your sound system to handle more power without costing too much money in the long run.

8. Replace Subwoofer Box:

A subwoofer box that is not constructed correctly will not perform well and can also damage your subwoofers. If you have a premade, replace it with one that has better bracing or uses other materials that provide more sound isolation. This is the costliest option on this list but might be necessary if your subwoofers are not performing well enough to satisfy your ears.

9. Use Crossovers:

If you have the right equipment, a crossover will help block out frequencies that do not need to be in your subwoofer’s range. This might include up to 3 or 4 different frequency bands, so it is tough to detail here.

The best way to use a crossover is to consult your car audio manual and see if it lists any specific instructions for the brand and model of subwoofer you have in your system.

10. Check Your Amplifier:

The last thing you can do to make your sound system louder is to check your amplifier and make sure it works properly or replace it with a stronger one. If you have a low-powered system, the only solution might be to get a new amp that can produce more power for all of your speakers.

Identify Type of Subwoofer Box

Before attempting how to make a subwoofer box sound better, you have to identify what type it is. There are three main subwoofer boxes: sealed, vented, and bandpass.

1. Sealed Subwoofer:

A sealed enclosure is one where the air pressure inside it remains constant. For example, when a subwoofer box is sealed, all of the air entering it exits through the ports on the front.

This type of subwoofer requires very little power to get loud. It has extremely accurate bass reproduction because no frequencies are wasted by being sent back into the subwoofer.

Requires Very Little Power to Get Loud

2. Vented Subwoofer:

A vented subwoofer enclosure is one where the air pressure inside it fluctuates. When a subwoofer box is vented, all of the air that enters it stays inside and causes the air pressure to increase.

This type of subwoofer requires slightly more power than a sealed one for the same output level and has less accurate bass reproduction because certain frequencies are being sent back into the subwoofer.

3. Bandpass Subwoofer:

A bandpass enclosure is one where the front and rear of the subwoofer are enclosed, but only a narrow opening between them is provided through which sound can pass.

The bandpass enclosure is a combination of sealed and vented enclosures. It provides accurate bass reproduction by not allowing any frequencies to be sent back into the subwoofer, but requires slightly more power than a sealed enclosure for the same output level.

Improving Sound Quality of Subwoofer Box

If you’re unhappy with the sound quality of your subwoofer box, there are several things you can do to improve it. This includes adding damping material, filling the box with damping material, and making other external modifications.

Damping materials reduce sound wave reflections. Without damping material, the sounds from the back of the woofer and the front of the woofer will mix destructively. The result is a highly complex signal that isn’t as loud as it could be if you had added damping material to your subwoofer box.

You Can Check It Out to: Hook Up Subwoofer to Tv

Essential Things to Consider When Making a Subwoofer Box Sound Better

1. Choose a box with the right size and shape of your subwoofer.

2. Choose carpeting and vinyl to cover the box with.

3. Choose a way of bracing the inside walls of the box, so it doesn’t vibrate too much.

4. Make double sure you choose a powerful amplifier for your subwoofer.

5. Think about the placement of your subwoofer in your vehicle, at least for sound quality purposes.

Think About the Placement

6. Make sure your subwoofer is in the correct type of enclosure for how you want it to sound.

You Can Check It Out to: Connect Dj Mixer to Amplifier


In conclusion, if you are looking to make your subwoofer box sound better, there are a few things that you can do. First, you can experiment with different materials and construction methods until you find one that gives you the sound you are looking for.

Additionally, be sure to fine-tune the placement of your subwoofer to get the best possible sound quality. By following these tips on how to make a subwoofer box sound better, you should be able to take your audio listening experience up a notch. What have been your favorite ways to improve the sound of your subwoofer box? Let us know in the comments below!

Jennifer Branett
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