Planning your subwoofer box design

1. Determine the minimum depth of your box. ...
2. Determine the minimum height and width of your box. ...
3. Determine the available space in your vehicle. ...
4. Sketch out your box. ...
5. Determine the internal dimensions and volume of your box. ...
6. Calculate the internal box volume in cubic inches.

How do you calculate subwoofer box?

You simply measure the height, width and depth (in inches), multiply them together and then divide that number by 1728. If the box has internal measurements of 6" high*18" wide*12" deep then the volume of the box is 1296/1728=. 75 ft^3.

What should I build my sub box with?

Enclosures should be built with very dense and heavy wood. We recommend MDF (medium density fiberboard) or Medite (high density fiberboard), They are rigid, heavy and not porous like some particle boards. We recommend 3/4" (19mm) MDF although 1/2" (12.5mm) MDF is acceptable for woofers 8" and smaller.

How can I make my subwoofer box sound better?

For sealed enclosures, a method to improve the sound is to fill the enclosure with polyfill. Polyfill is a material that will slow down the airflow within the subwoofer, therefore giving you a tighter and cleaner bass production than before.

Do subs hit harder in a ported box?

Air flowing through the port adds to the boom. Another reason ported subs hit so hard and deep is that the air flowing in and out of the port creates an audio effect like that made by a whistle or blowing across the mouth of a bottle, and that tone adds to and strengthens the note the cone plays.

Subwoofer Box Volume Explained - Gross vs. Net vs. Air

44 related questions found

What makes a subwoofer hit harder?

Every type of subwoofer requires a certain power output by an amplifier. Matching up the power requirement of the subwoofer to the output of an amplifier can make the subwoofer hit harder.

How thick should a fiberglass sub box be?

the normal that I use for fiberglass boxes is 1.5oz cloth/mat (whichever you prefer) I like to work with mat sometimes better than cloth just depends on the box and size/shape. but you try to shoot for 1/4" thickness. This is well laid meaning little to no air bubbles.

Which way should my subwoofer face in my truck?

Facing the subwoofer upward while in the trunk, gives you big bass without consuming a lot of space. This direction offers crisp sound with a slight advantage to high frequencies and treble, and won't rattle loose parts in your vehicle as much.

Does subwoofer box shape matter?

I've heard mentioned that you should try to include at least one angle in the design to eliminate the possibility of standing waves inside the enclosure, but the general consensus around here is that the shape doesn't matter.

How do I get more bass on my subwoofer?

Just follow these simple steps for great bass:

1. Remove the distortion.
2. Flatten the signal, open the low-pass filter.
3. Adjust the subwoofer gain and low-pass filter.
4. Adjust the bass boost and subsonic filter.
5. Match the subwoofer level to the receiver volume.

What happens if a subwoofer box is too small?

As the size of the enclosure increases, the mechanical limits of the woofer will be easier to reach. If the box is too small (by a reasonable amount) add power. ... If the port becomes too small, it may result in port noise, or allow the woofer to simply unload.

How much airspace do I need for a 15 inch sub?

15 inch drivers: 5.0 to 9.0 cubic feet.

Does bigger box mean more bass?

A bigger sealed box will give you lower bass than a smaller sealed box but you lose much of the tightness in the bass.

Is a ported box louder than sealed?

PORTED / VENTED SUBWOOFER ENCLOSURES

These types of enclosures, when built with the properly calculated volume and tuned to the correct frequency for the subwoofer, are generally louder than a sealed enclosure. ... They allow subwoofers to reproduce the lower frequencies found most often in Rap and Hip Hop music.

How deep should a subwoofer box be?

A good rule of thumb is to add at least 2 to 3 inches to the size of the subwoofer. For example, a 10-inch sub should have a front panel at least 12 to 13 inches square. Size the depth of the box to create the volume you require for your box.

Is fiberglass good for subwoofer box?

Having a fiberglass enclosure for the subwoofer can maximize the space available in any vehicle. Aside from saving space, vehicle owners can also have a lot more options in enclosing their subwoofer. Another distinctive advantage of using subwoofer enclosure made of fiberglass is the wider variety of available designs.

Can you fiberglass over MDF?

If you apply wet fiberglass to the mdf it will stick and not come off with out a grinder or napalm, lol. No, seriously, it will stick to mdf really good. If you are trying to put mdf on dry fiberglass then just get somemore resin and mold some glass to the mdf and current glass structure. I did this with my box today.

Does fiberglass make a good subwoofer box?

Introduction: Custom Fiberglass Subwoofer

Most car trunks have "dead" space in the wheel wells thats perfect for fitting a subwoofer without taking up valuable trunk space. Working with fiberglass is not very difficult and can produce some great results when you need a complex or custom shaped enclosure.

Is a capacitor needed for subs?

Voltage Stability

Capacitors offer some small amount of protection for amplifiers from potentially damaging under-voltage surges over time if you play loud music regularly. But most of the reason for adding capacitors is to keep your car voltage stable.

What Ohm is best for subs?

In general, when you increase the resistance of the subwoofer and amplifier in a car audio system, you will receive a more controlled bass note from the components. 4-ohm Subwoofers are best for people who are looking for the most accurate and clear audio reproduction.

Does a capacitor increase bass?

A capacitor helps supply power to the subwoofer's amplifier during times of peak performance. The capacitor connects to the battery and stores power for the amplifier so that when high power consumption occurs (playing bass-heavy music loudly), the amplifier and subwoofer receive enough power.