If you spend your week commuting around the St. Joseph and Kansas City, MO area, a premium car stereo upgrade can completely transform your daily drive. But if you have just installed powerful new component speakers from DS18 or Skar, or threw a massive American Bass or Soundstream subwoofer in the trunk, you might notice an annoying side effect: your car’s metal panels rattle and vibrate every time the bass drops.
To get the absolute best performance out of your aftermarket car audio gear, you need sound deadening. Here is the science behind why it is the most important addition to your custom installation.
The Problem: Your Car Doors Are Resonant Metal Cans
When automakers build vehicles, they use thin sheet metal to save weight and reduce costs. According to independent testing utilizing acoustic measurement software, a bare metal panel—like the outer skin of your car door—naturally resonates and peaks right around the 100Hz frequency area.
When your new high-powered DS18 speakers hit those mid-bass notes, the metal panels in your doors vibrate sympathetically. This vibration creates an unwanted acoustic energy that muddies your music and causes a lingering, annoying “ringing” sound inside the cabin.
The Solution: Constrained Layer Dampers (CLD)
To fix this, professional installers use high-quality sound deadening material known as a Constrained Layer Damper (CLD). When applied directly to the metal panels of your doors, floor, or trunk, it acts as a heavy shock absorber.
Independent acoustic testing measures exactly how effective these materials are at dropping the amplitude of the panel’s resonance. Because the decibel (dB) scale used in audio is logarithmic—not linear—even small reductions make a massive difference. In fact, every 3dB drop equates to cutting the resonant energy entirely in half. A premium sound deadening application can drastically reduce peak resonance, meaning your music stays crystal clear instead of shaking the metal around it.
Faster Decay for Tighter Bass
For car audio enthusiasts, it isn’t just about surviving the initial bass hit; it’s about the decay. Advanced audio testing measures how quickly a metal panel stops ringing 100 milliseconds after the audio hits. High-quality deadening material forces that resonance to decay rapidly. This is critical for car audio applications, ensuring that the heavy hits from your Skar or American Bass subwoofers sound tight, precise, and punchy instead of loose and rattling.
Protect Your Audio Investment
If you are investing in high-end gear like Soundstream amplifiers, skipping the sound deadening means you are leaving incredible audio quality on the table. Don’t let thin factory metal ruin your premium sound.
Ready to hear your music exactly as the artist intended, without the annoying vibrations? Whether you are located in St. Joseph, Kansas City, or anywhere within a 2-hour driving radius, the experts at Evergreen Audio and Tint are ready to build your dream system.
Call Evergreen Audio and Tint today at 816-617-2053 or visit our website at www.evergreen-audioandtint.com to schedule your custom audio and sound deadening installation!
