How To Add Port a Sealed Sub Box Using PVC Pipe? – A Detailed Guide

Most of the people aren’t happy with their sub box and they are always looking for a way to make it look better.

That’s where this guide comes in. In this guide, you will be learning how to port a sealed sub box using PVC pipe? Here is a short answer!

In short, to add a port to a sealed sub box using PVC pipe, first collect all the items you need, next cut the PVC pipe, at least 18 inches long.

Then, determine the port size you need and cut a hole in the side of the box long enough to accommodate it. After that, dry fit the port and finally, glue and seal the port into place.

Keep reading to find out more, you’ll learn everything you need to know about porting a sealed sub box – from what you’ll need to step-by-step instructions.

So read on and get ready to add porting a sealed sub box to your DIY project repertoire!

You Might Be Interested In How To Make A Sealed Speaker Box Louder? 

Can I Port My Sealed Sub Box?

Adding a port, a sealed sub box is a popular modification for car audio enthusiasts. Many people want the ability to wirelessly send audio from their car audio system to their audio system in the car.

However, there are a few things to keep in mind before you take the plunge.

  • First and foremost, you need to make sure your sealed sub box has a standard RCA jack and an external power supply. If your box doesn’t have these features, you won’t be able to port it.
  • Next, you’ll need to get prepared to spend some time and money on hiring an installer. The process of porting a sealed sub box is not easy to do yourself, so it’s important to enlist the help of a professional.
  • Make sure you use the correct size PVC pipe – too small of a pipe could cause leakage.
  • Finally, consult with a professional before you take the plunge and make sure you’re doing everything correctly.

If you’re confident to do this yourself, continue reading!

What You’ll Need

Adding a sealed sub box is a great way to expand the bass boost range of your car audio system.

To do this, you’ll need the right materials and a bit of DIY know-how. Here’s what you’ll need:

  • Tape measure
  • PVC pipe of the desired size
  • Tape
  • Hack saw or Miter saw
  • Sealed sub box
  • Your car audio system
  • Glue
  • Screws

Once you have these items, follow these steps to add a sealed sub box using PVC pipe.

A Detailed Guide on How to Add Port a Sealed Sub Box using PVC Pipe?

Hiring a sub enclosure porter isn’t always an option, or you may just want to try it out yourself.

If that’s the case, follow this step-by-step guide to port a sealed sub box using PVC pipe.

Step 1: Choosing the Right Size Pipe

Make sure that you choose the right size pipe before starting – this will largely depend on the size of your sub box.

Finally, make sure to get professional help if you are not familiar with this process – it is definitely something that should be done by someone who knows what they’re doing!

Step 2: Determine the Length of the Port

After that you need to determine the length of the port. Measure from the front panel of your enclosure to the back and make a note of this number.

Next, you’ll need to calculate the length of the pipe. To do this, subtract the width of your enclosure from the length you’ve measured and cut the pipe accordingly.

You can use an online calculator also.

Step 4: Cut the PVC Pipe to Length

Cut the PVC pipe lengthwise so that the end with the hole is aligned with the opening in your sealed sub box.

If you are looking to port your sealed sub box, you will need the following materials – PVC pipe, sealing tape and a saw.

I recommend 18-inch length.

Once cut to length, peel off the adhesive sealant and screwdriver from both sides of the PVC pipe.

Place sealing tape over hole on one side of the pipe and stick it inside the sealed sub box. Now you’re ready to install!

Step 5: Dry Fit the Port

Let’s move on to step 5 – which is dry fitting the port. To dry fit the port, first place the pipe into your enclosure and make sure that it is snug against the back panel. 

Next, mark where you want to screw in the metal screws onto your back panel. Finally, use a saw to cut away any excess PVC pipe so that your screws will be flush with the surface.

Step 6: Glue the Port in Place

Step 6 of the 7-step process is to glue the port in place. This requires a strong adhesive that will stay put for a long time, so make sure you choose one wisely.

Once it’s sealed, don’t move or bump the box around too much – this might dislodge and break your port. Make sure your port is level and straight before applying glue – this will ensure a neat, finished product.

Finally, wait until the adhesive has dried completely before moving on to Step 7.

Step 7: Seal the Port

To install a port, start by cutting a hole in the wall large enough to fit the PVC pipe through. Make sure the area is clean and free from any debris or obstructions.

Next, seal up any holes in the wall and around your port with sealant – this will keep moisture and noise out! Insert the PVC pipe into the hole, making sure it is flush with the wall surface.

Hold onto ends of pipe and pull tight, tightening up any gaps around the port (if needed).

Finally, make sure the area is clean and ready for installation!

Learn Here How To Secure Sub Box In Trunk?

Step 8: Let the Caulk Dry

After following the instructions in Step 8, your ported sub box is now ready for use! To port your sealed sub box, you will need a PVC pipe and some caulking.

Make sure to read the directions carefully before starting so that you don’t end up making any mistakes. Once everything is set up correctly, enjoy listening to your tunes in style!

Tips and Warnings

Adding a ported sub box is a great way to improve the bass response of your car audio system.

But before you get started, be sure to read this guide first to ensure a successful installation.

Here are some tips and warnings to keep in mind:

  • Insert the PVC pipe into the opening, then seal it off with glue or a clamp.
  • Before starting, be sure to identify the location of the port and mark it on the pipe.
  • Cut a hole in the bottom of your sealed sub box big enough for your PVC pipe to fit through.
  • Make sure your ported sub box is level before caulking around the edges (or using any other finishing touches).
  • Once you’ve got the basics down, it’s time to get to work!

The porting process is easy – just follow above steps:


Now that you know everything you need to port a sealed sub box, it’s time to get started! In this detailed guide, we walked you through the entire process, from start to finish.

Make sure to have all the necessary supplies on hand before starting and be sure to follow our step-by-step guide to a T to ensure a successful port.


How long does it take to install my ported boxes, and how much does it cost?

It can take up to two days to install a ported box, and the cost of the installation will vary depending on the complexity of the project.

However, expect to spend anywhere from $30 to $50 on materials like PVC pipe, connectors, sealant, sandpaper and screws.

What type of conduit should I use for my conduits, and what size is best for me?

When installing a conduit for your security box, you’ll want to make sure that it is properly installed so that it does not interfere with any existing wiring or plumbing systems.

Here is guide for How To Keep Sub Box From Moving In Trunk?

PVC pipe is a popular and easy to use conduit for this purpose as it’s flexible, light in weight, and can easily be concealed.

Depending on the space you have available and the type of box you are installing, you may opt for different sizes of PVC pipes.

For example, if you are installing a small port security box, then a small diameter pipe might be ideal.

On the other hand, if you are installing a large port security box, then a larger diameter pipe might be better suited.

What type of fittings should I use for my ports, and what size is best for me?

When it comes to port fittings, the size is determined by the size and type of port that you are installing.

For example, if you are installing an RCA jack port, then your fitting needs to be RCA standard sized. When it comes to port additions to a sealed sub box, you will need fittings made of PVC pipe.

How do I know if my ports are installed properly?

To make sure that your ports are installed properly, follow these steps:

  • Check the following: Is there enough space around the port, does the port sit flush against a wall or ceiling, is there any water coming in or out of the port?
  • If you’re not sure if your ports are installed properly, you can contact a professional to install them for you.
  • You can also use a PVC pipe to port a sealed sub box – just follow these easy steps: measure and cut out the necessary pieces, snake it through the opening in your roof, and screw it together at each end.

How many ports can I fit in a single sealed sub box?

Normally, a sealed sub box that uses PVC pipe allows you to fit up from 1 to 4 ports.

So, in order to fit the required ports, you’ll need a 20-inch length of the tubing and an 18-inch adapter.

Make sure that the adapters are inserted into the ends of the pipes so that they are tight and watertight.