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Car Audio Door Soundproofing Kit

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Car Audio Door Soundproofing Kits

Our Car Audio Door Kits will significantly improve the quality of sound from your door's speakers, insulate the door for heat, and reduce overall noise into the vehicle. The typical door cavity acts like an empty room, bouncing sound waves back into the speakers and creating echos that distort your music. The doors are also one of the loudest parts of the vehicle, and are fortunately one of the easiest parts of the car to access. The Car Audio Door Kit has everything you need for a car door sound deadening project!

 

 

Features

  • For the best possible results soundproofing a car door, you must apply the right materials to the right locations!
  • All of our door kits add excellent thermal insulation to reduce heat transfer.
  • All Door Kits: Damplifier Pro™ is your first layer. Apply to damp metal vibrations and stop structural noise.
  • The best second layer depends on your specific door and project goals. Yes, 2nd layers can be combined for better results!
  • 2nd Layer Option: OverKill Pro™ isolates rattling plastic panels from the metal door panel.
  • 2nd Layer Option: Luxury Liner Pro™ beefs up the door, sealing the door cavity to block noise and improve mid-bass.
  • 2nd Layer Option: Mega Zorbe™ goes inside the door cavity to improve acoustics and reduce overall noise.
  • Accessories: Kits include Speaker Tweakers, required adhesives, and a roller 
  • Proudly made in the USA

 

 

Car Door Soundproofing Kit Options

OverKill Pro™ Car Door Kits 

 Materials   2-Door Kit   4-Door Kit   What is this for? 
 Damplifier Pro™   8 sheets (13.5 sq ft)   16 sheets (27 sq ft)   Apply to vibrating metal to stop structural noise 
 OverKill Pro™    2 sheets (18 sq ft)   4 sheets (36 sq ft)   Decouple vibrating plastic from hard surfaces 
 Speaker Tweakers   2 tweakers   4 tweakers   Goes behind a door speaker to redirect back waves 
 High Temp Spray Adhesive   1 can (16 oz)   1 can (16 oz)   Use to adhere the OverKill Pro™ 
 Wooden Hand Roller   1 roller  1 roller   Roll the Damplifier Pro™ to bond it to metal 

 

When is the OverKill Pro™ kit the best option? If you have vibrating plastic panels, we recommend combining Damplifier Pro™ on the metal with OverKill Pro™ to isolate the plastic panel from the metal door skin.

 

 

Luxury Liner Pro™ Car Door Kits 

 Materials   2-Door Kit   4-Door Kit   What is this for? 
 Damplifier Pro™   8 sheets (13.5 sq ft)   16 sheets (27 sq ft)   Apply to vibrating metal to stop structural noise 
 Luxury Liner Pro™   2 sheets (18 sq ft)   4 sheets (36 sq ft)   Seal the door cavity or install as a general barrier 
 Speaker Tweakers   2 tweakers   4 tweakers   Goes behind a door speaker to redirect back waves 
 High Temp Spray Adhesive   1 can (16 oz)   1 can (16 oz)   Use to adhere the Luxury Liner Pro 
 Wooden Hand Roller   1 roller  1 roller   Roll the Damplifier Pro to bond it to metal 

 

When is the Luxury Liner Pro kit the best option? If you want to increase speaker mid-bass or reduce overall noise from the door, we recommend combining Damplifier Pro on the metal with Luxury Liner Pro to seal the door cavity.

 

 

Mega Zorbe™ Car Door Kits 

 Materials   2-Door Kit   4-Door Kit   What is this for? 
 Damplifier Pro™    8 sheets (13.5 sq ft)   16 sheets (27 sq ft)   Apply to vibrating metal to stop structural noise 
 Mega Zorbe™    4 sheets (16 sq ft)   8 sheets (32 sq ft)   Cover metal in the door cavity with hydrophobic, absorptive foam 
 Speaker Tweakers   2 tweakers   4 tweakers   Goes behind a door speaker to redirect back waves 
 Wooden Hand Roller   1 roller  1 roller   Roll the Damplifier Pro™ to bond it to metal 

 

When is the Mega Zorbe™ kit the best option? If you want to improve speaker acoustics or reduce overall noise from the door, we recommend combining Damplifier Pro™ on the metal with Mega Zorbe™ inside the door cavity. 

 

 

Resources

 Damplifier Pro™ Product Sheet  Damplifier Pro Product Sheet  
 Damplifier Pro™ Spec Sheet   Damplifier Pro™ Technical Spec Sheet 
 Damplifier Pro™ Install Guide   Damplifier Pro™ Install Guide 
 Mega Zorbe™ Product Sheet  Mega Zorbe™ Product Sheet
 Mega Zorbe™ Install Guide  Mega Zorbe™ Install Guide 

 

 

Material Testing

Mega Zorbe ™ - Noise Reduction Coefficient

 Frequency (Hz)   125   250   500   1000   2000   4000   NRC 
 1/2" Mega Zorbe™   0.11   0.12   0.25   0.42   0.77   0.94   0.40 
 1" Mega Zorbe™ Pro   0.18   0.23   0.50   0.82   0.99   0.99   0.65 
 2" Mega Zorbe™ Pro   0.31   0.60   0.75   0.90   1.00   1.00   0.80 
 3" Mega Zorbe™ Pro (stacked)   0.42   0.67   0.81   0.96   1.00   1.00   0.85 
 4" Mega Zorbe™ Pro (stacked)   0.53   0.80   0.90   0.99   1.00   1.00   0.90 

 


Damplifier Pro™ Adhesion
 

 Tested Properties   Performance 
 Salt Spray Aging  Pass
 Heat Aging   Pass
 Humidity Aging  Pass
 Environmental Cycle Aging   Pass
 400°F Sag (4 hours)  Pass
 -40°F Cold Slam (4 hours, 6 slams)   Pass

 

 

Installation Instructions

All Car Door Kits:

  • Remove the plastic door panel and any vapor barriers or liners.
  • Damplifier Pro™ should be adhered directly to the door's metal. Cut with a utility knife and roll on with the hand roller.
  • The outside metal is often unsupported and very floppy, so you'll want more coverage there.
  • The inside metal (where the lock and window mechanisms are) is more reinforced and needs less coverage.
  • We recommend at least 60% coverage on the outer door metal and 40% coverage on the inner metal.
  • Speaker Tweakers should be adhered 3 to 8 inches behind the speaker with the ridges facing the speaker. Use Super Strong Tape or super glue as an adhesive. 

 

OverKill Pro™ Door Kits:

  • To stop rattling plastic, install OverKill Pro™ between the metal door skin and the plastic panel. By filling that space, we can isolate (or decouple) the two hard surfaces and prevent the hard surfaces for rattling against each other.
  • For rattling areas where you don't have 3/8" of clearance, switch to the thinner OverKill™ closed cell foam or force the OverKill Pro™ to compress. 
  • The key to the best results is to fill open spaces and minimize contact points between two hard surfaces. OverKill Pro™ can be used anywhere you have plastic panels!
  • See this video to watch Jeffrey Hald, a pro installer, show how to install OverKill Pro™ in a car door.
  • Alternate strategy: Apply OverKill Pro™ directly on top of Damplifier Pro™ inside the door cavity. Even though it's closed cell foam (and not as absorptive as Mega Zorbe™), it will cover the very reflective metal to reduce reverb - similar to putting a carpet in an empty room.

 

Luxury Liner Pro™ Door Kits:

  • Sealing up the door cavity with a dense barrier is the best overall method to soundproof a car door.
  • Use Luxury Liner Pro™ to turn your door into a speaker box and increase mid bass. 
  • We recommend adhering the Luxury Liner Pro™ mechanically or with Dual Lock™ reclosable fasteners to completely seal the opening.
  • See this video to watch Mark at CarAudioFabrication install Luxury Liner Pro™ in a car door.
  • Alternate strategy: Apply Luxury Liner Pro™ directly on top of Damplifier Pro™ inside the door cavity with 100% coverage. Luxury Liner Pro™ is the best MLV sound barrier for stopping sound from getting through the door.

 

Mega Zorbe™ Door Kits:

  • Adding Mega Zorbe™ inside the door cavity is the most effective treatment for improving car audio. It's also an excellent approach for general door noise reduction.
  • Apply Mega Zorbe™ directly on top inside the door cavity with 80-100% coverage. It's an easy peel and stick application.
  • Because Mega Zorbe™ is hydrophobic, there are no water exposure concerns. Water flecks right off.
  • See this video to watch T-Fade at Everyday Audios install Mega Zorbe™ in a car door.
  • Alternate strategy: Combine Mega Zorbe™ inside the door cavity with Luxury Liner Pro™ to seal the door cavity for the best possible car audio.

 

 

Common Product Uses

  • Soundproof and improve your car audio overall
  • You can also use Damplifier Pro™ sound deadening mats on your:
    • Floors
    • Doors
    • Trunk
    • roof
    • Hood
    • Firewall
  • Use Luxury Liner Pro™ on:
    • Floors
    • Doors
    • Trunk
    • Cabin firewall
  • Use Mega Zorbe™ on:
    • Doors
    • Roof
     

 

Contact us if you have any questions!