It can be a sad sight when your subwoofer develops a hole. It’s possible for a subwoofer to develop a hole when throwing something in the back of your trunk or when installing a new subwoofer. You will not be able to enjoy your rocking bass subwoofer until it is repaired or replaced, and replacing a subwoofer can be very expensive depending on which one you have.
We know how painful a torn subwoofer sounds, so we put together this guide to help you in your repair! A subwoofer needs flexible vibrations in order to produce the best sound. Make sure when choosing glue that you are performing a repair that will be flexible, while also holding for a long time.
Subwoofer Hole Repair Methods
The glue you need to repair your subwoofer will depend on the method you accomplish the task. There’s a couple ways to go about doing the repair. You can use speaker adhesive which will form a flexible strong bond, but it will not cover larger seals. You can also use silicone to make a seal, which is good for small to medium size tears. Keep in mind, this will reduce the flexibility of your speaker depending on how large the tear is, and we do not recommend doing this for larger tears. For larger tears, we recommend patchwork with foam and adhesive to keep the audio quality sounding the best and also to keep your speaker functional longer than the other methods.
Speaker Adhesive is designed to help repair small tears in subwoofers and other speakers. It typically comes in black color to match most speakers on the market. Speaker adhesive is great for fixing small tears and creating strong seals without ruining the sound of your subwoofer.
This method will work best for longer and skinnier tears in your subwoofer cone. The idea is to apply a rubber or silicone composite directly into the seams that are torn and hope for a good seal. This method is less complicated than the patchwork method, but you will not be able to repair large tears this way. This repair will also most likely last a shorter amount of time before revision is necessary.
Here is a video explaining how to use the silicone seal on a subwoofer:
We recommend for larger holes (bigger than a penny) that you apply glue patchwork to your subwoofer. The important part is to use glue that will adhere to both your subwoofer cone material and the patchwork. This will of course depend on what you are using as a patchwork. Ideally, you are looking for material that is about the same thickness as what is currently used on your subwoofer cone.
Check out this video for information on how to patch your subwoofer hole with basic Walmart foam:
Keep in mind, in this video, there is a lot of glue applied in the repair. We recommend using less glue because it is rigid and the material should be able to flex with the subwoofer. Use enough to get the job done, but don’t overdo it.
Best Glue for Subwoofer Repair
Once you have decided on the repair method you are going to use to help your subwoofer get back into a functional form, you will need an adhesive that will get the job done. These products are our recommendations for each of the different methods. They’re the same products shown in the videos above.
For Small Tears
- Professional-Grade hexane-based rubberized adhesive specially formulated to form a permanent, flexible bond.
- Goes on black; dries black. This is the REAL THING!!
- Available size options: 1/2oz, 1oz, 2oz, 4oz, 8oz and 16oz
- NOT for attaching voice coils!
For Silicone Seal
- Sensor-safe, non-corrosive formula designed for superior adhesion to oily surfaces and long term durability
- Superior resistance to powertrain fluids including engine oil, transmission fluid, gear lube and coolants
- Retains high flexibility and eliminates the need for pre-formed, pre-cut, paper, rubber or cork gaskets; OEM specified and approved for dealership warranty requirements
- Temperature Range -65°F to 500°F (-54°C to 260°C) intermittent
- Suggested Applications: Valve covers, oil pans, intake manifold end seals, timing covers, and differential covers
- E6000 - 3.7oz Tube of E6000. Perfect for projects including glass, clay, beads, fabric, ceramics, wood, glass and metal, E6000 is a waterproof rubber-based compound that withstands washing and drying.
- Snip Tips - 4 snip tip applicator tips for E6000 3.7oz tubes.
- Dotting Tools - 5pc wood handle Pixiss art dotting stylus for pottery, clay, sculpting, nail art, paiting, blending, molding, marbling, swirls, rhinestones and more. Perfect for all sorts of working conditions.
- 10 Dotting Tips - 10 different sized tips create the perfect dotting tool set for getting in to the tightest of locations.
- Made to Last - E6000 is a great addition to your craft cupboard.