Whether you’re upgrading your factory stereo or building a competition-level system, we design and install custom audio setups that match your style and sound goals—clean, powerful, and perfectly tuned.
At our shop, sound damping is never an afterthought—it’s a purpose-driven, precision-engineered process. We don’t just throw padding under the carpet and call it a day. Instead, we treat soundproofing the same way we treat performance upgrades: with strategy, accuracy, and attention to detail.
We understand the science behind how sound travels through your vehicle’s structure, and we know exactly where to apply damping materials for maximum impact. From door panels and floors to firewalls, trunks, and wheel wells—every surface we treat is done with intent.
We don’t just cover surfaces blindly—we target key vibration and noise zones: door panels, floors, firewalls, trunk spaces, wheel wells, and rooflines.
This results in measurable reductions in road noise, vibration, and audio distortion.
With proper deadening, your speakers don’t have to fight against echo, rattle, or road noise.
You get tighter bass, cleaner mids, and a more focused soundstage—even at lower volumes.
Want that solid, luxury “thunk” when you close your doors? That smooth, quiet ride at highway speeds?
Our installs reduce outside noise and cabin resonance to give your vehicle that premium, high-end feel—no matter what you drive.
We use automotive-grade materials like butyl-based deadeners, closed-cell foam, and thermal barriers—not low-cost alternatives that peel, melt, or stink over time.
Panels are removed and reinstalled with care, ensuring everything looks stock and functions perfectly post-install.
Our sound damping materials also serve as a thermal barrier—keeping heat out during summer and trapping warmth inside during winter.
This added insulation enhances overall cabin comfort and helps your HVAC system run more efficiently year-round.
We’ve done this for years across all vehicle types—from show builds and luxury sedans to daily drivers and off-roaders.
Our deadening solutions are made to withstand years of vibration, temperature swings, and heavy use without failure.
Excellent rating
Based on 292 reviews The Greeley location of Quality Auto Sound has done work for me on a number of projects and consistently provided great customer service. I've worked with Josh on multiple occasions with very good results. Most recently, Josh and his team of technicians replaced my factory head-unit with the latest Kenwood model. It was a complex install that included steering wheel controls, a hands-free phone system, satellite radio, and a back-up camera. They handled everything easily and with a lot of attention to details and to aesthetics. They also communicated very effectively throughout the process, and hit their time and price estimates. Although an expensive upgrade, it was a nice way to incorporate all of the latest technology without taking the even more expensive path of buying a new vehicle. It's worth checking these guys out ... UPDATE July 2025: I had Josh and team repeat this process on my newest truck, adding in a Kenwood floating screen head unit. As always, they did an absolutely fantastic job on a very complex install. They put an incredible amount of energy into the project to get every detail right. They've also outfitted my truck with JL audio speakers, sub, and a VXi amp. It sounds amazing and works flawlessly. Five stars for sure! Justin Schaneman They did an amazing job great service for a reasonable price. Highly recommend Katherine Adams Fast, friendly and knowledgeable! Jami M Professional advice and service best describes my visit, thx for everything guys Troy Andrus I’ve gone to quality auto sound a couple times now and absolutely love this place. The people in there know what they’re talking about when I need experience/assistance in choosing what I need, always very friendly very nice unlike car toys and I got a great deal on my sound equipment. Would highly recommend this place to anyone else looking to put in a sound system. Carter Slaugh Good people good deals. Friendly and helpful Derrick Ortiz Friendly and professional staff. Great service at a reasonable price. I received new head-unit (deck) plus total electrical integration, everything works and the sound is amazing! I would definitely recommend. I am