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The final stop in your quest for the best car sound deadening materials on the market.

       At ResoNix, we specialize in high-performance car audio products designed to help you get the most out of your sound system. From advanced sound deadening materials to premium cables and accessories, everything we offer is developed with a focus on delivering real results. Whether you are a DIY installer or a seasoned professional, our products are crafted to make a noticeable difference in your audio experience. Plus, all of our sound treatment products are proudly made in America, ensuring the highest standards of quality and performance.

       What sets us apart is our dedication to quality, performance, and integrity. We do not rely on flashy marketing or gimmicks to stand out. Instead, we focus on designing products that are backed by real-world data and tested to perform at the highest level. When you choose ResoNix, you are getting solutions that are engineered with care, manufactured with precision, and proven to work. Every material we use and every product we sell is carefully selected to help you achieve the best possible results.

       At ResoNix, we are not just about selling products. We are here to support you every step of the way. Whether you need help selecting the right materials or guidance on installation techniques, we are dedicated to providing the expertise and support you need to succeed. Our goal is to help you build a better system, the right way, with products you can trust and results you can hear.

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  • Sale! ResoNix Sound Solutions CLD Squares Sound Deadening Material Sound Deadener Constrained Layer Damping Car Audio Sound Deaden Mat

    ResoNix CLD Squares: Sound Deadening Material

    $69.00$340.00
    This product has multiple variants. The options may be chosen on the product page
  • ResoNix Sound Solutions Super Max Mega Pro CLD Squares Sound Deadener Automotive Sound Deadening Material Free Roller Marine Industrial HVAC Sound Deadening Reduction Material for Vehicle Truck Semi 18 wheeler cars

    ResoNix Mega CLD Squares: Heavy Duty Sound Deadening Material

    $155.00$285.00
    This product has multiple variants. The options may be chosen on the product page
  • ResoNix Sound Solutions Lite CLD Rectangles Sound Deadener Automotive Sound Deadening Material Free Roller Marine Industrial HVAC Sound Deadening Reduction Material for Vehicle Truck Semi 18 wheeler cars

    ResoNix LITE – CLD Rectangles – Lightweight Sound Deadening – 9 Pieces (36 Square Feet)

    $145.00
  • ResoNix Sound Solutions Butyl Rope Gasket Sealant Tape For Car Audio, Automotive, RV and Recreational Vehicle, Motorhome, and industrial use.

    ResoNix Butyl Rope – Butyl Sealant Tape

    $20.00
  • ResoNix Sound Solutions Sample Kit

    ResoNix Sample Kit

    $1.00
  • Close up of ResoNix Sound Solutions Fiber Mat Black Edition. This is a Car, Automotive, Marine, aviation, and industrial Sound Absorber that is also used as Sound Deadening Foam

    ResoNix Fiber Mat Black Edition – Self Adhering Automotive Sound Absorber & Decoupler

    $90.00$99.00
    This product has multiple variants. The options may be chosen on the product page
  • ResoNix Sound Solutions Fiber Mat Silver Acoustic Absorber and Thermal Insulator hoodliner material installed on car hood for heat rejection and noise reduction

    ResoNix Fiber Mat Silver – Car Hood Liner & Sound Absorber

    $115.00
  • ResoNix Sound Solutions Lockout Hydrophobic Melamine Composite sound absorber for cars for midbass rear wave absorber and midbass diffuser, and Marine engine compartments sound absorber and thermal Insulator. Generator cover sound absorber.

    ResoNix Lockout – Automotive & Marine Sound Absorbing Sheet

    $225.00
  • ResoNix Sound Solutions Guardian Hydrophobic Melamine MLV Composite sound absorber for cars rear wave absorber midbass diffuser and Marine engine compartments Mass Loaded Vinyl Thermal Insulator

    ResoNix Guardian – Automotive & Marine Sound Absorbing Pad

    $330.00
  • ResoNix Barrier MLV Mass Loaded Vinyl Replacement Automotive Marine Commercial Industrial noise reduction

    ResoNix Barrier – Moldable Noise Barrier MLV Replacement

    $345.00
  • ResoNix Sound Solutions CCF Strips Foam Rings Installed around midbass speaker in a car door

    ResoNix CCF Strips – Foam Speaker Ring Strips For Speaker-To-Panel Coupling

    $20.00
  • ResoNix Sound Solutions Sound Deadening Material Installation Roller For Sound Deadener

    ResoNix Roller – Sound Deadening Roller

    $25.00
  • Sale! ResoNix Sound Solutions CCF Decoupler Sound Deadening Foam Tape

    ResoNix CCF Decoupler Tape – Sound Deadening Foam Tape

    $35.00$55.00
    This product has multiple variants. The options may be chosen on the product page
  • Sale! ResoNix Sound Solutions Closed Cell Foam CCF Decoupler 7S 3S 3F Gasketing Decoupling Car Audio Sound Deadening Foam Sound Absorber Heat Thermal Insulator Insulation

    ResoNix CCF Decoupler Sound Deadening Foam Sheets – 13.5 Square Feet

    $55.00$99.00
    This product has multiple variants. The options may be chosen on the product page
  • ResoNix Sound Solutions Volkswagen VAG VW Audi Porsche Lamborghini Bugatti Bentley OEM Interior Wire Harness Tape For Sound Deadening

    Audi/VW OEM Wire Harness Tape

    $15.00
    This product has multiple variants. The options may be chosen on the product page
  • Velcro To Secure MLV Mass Loaded Vinyl in car home commercial industrial

    ResoNix MLV Compatible Velcro ®

    $16.00
  • ResoNix Sound Solutions Planet Waves dual coaxial solderless custom rca cable and rca end connector system being DIY assembled

    Solderless Custom Length RCA Cable System

    From: $0.00
  • Remote DSP Tuning Service

    $800.00$1,250.00
    This product has multiple variants. The options may be chosen on the product page
  • ResoNix Sound Solutions DSP Tuning Measurement Microphone In Car

    Sound System Design & Installation Consultation Service

    $250.00
  • Sale!

    ResoNix Stage-2 2-Door Sound Deadening Kit

    From: Original price was: $440.00.Current price is: $355.00.
  • Sale! ResoNix Sound Solutions Stage 3 Door Kit

    ResoNix Stage-3 2-Door Sound Deadening Kit

    From: Original price was: $810.00.Current price is: $685.00.
  • Sale!

    ResoNix Stage-4 2-Door Sound Deadening Kit

    From: Original price was: $1,340.00.Current price is: $1,140.00.
  • Sale!

    Porsche 911 – ResoNix Sound Deadening & Sound Treatment Kit

    Original price was: $1,060.00.Current price is: $992.00.
  • ResoNix Sound Solutions Ford Bronco Sound Deadening Kit

    ResoNix Ford Bronco Sound Deadening Kit

    Original price was: $1,487.00.Current price is: $1,287.00.
  • Sale! ResoNix Sound Solutions Polaris Xpedition XP5 Sound Deadening Material Kit with ResoNix CLD Squares sound deadener, ResoNix Fiber Mat sound absorber, and ResoNix Barrier noise barrier to reduce noise of side by side utv

    ResoNix Polaris Xpedition Sound Deadening Kit

    Original price was: $690.00.Current price is: $599.00.
  • Sale!

    ResoNix Sound Proofing Kit For Sedan, Crossover, & Truck – Entry Level

    Original price was: $3,180.00.Current price is: $2,899.00.
  • Sale!

    ResoNix Full Sound Proofing Kit – Sedan, Crossover, & Truck

    Original price was: $8,174.00.Current price is: $7,699.00.
  • Mundorf U60S-PS1.1 PS Sound AMT Tweeters

    PS Sound – Mundorf U60S-PS1.1 AMT Tweeters

    From: $1,099.00
  • Karma Mobile Audio Allure 1 Inch Tweeter Speaker For Car Door Dash Sail Panel A Pillar component set 1 inch tweeter

    Karma Mobile Audio: Allure 1 Tweeter (Pair)

    $499.00
  • Karma Mobile Audio Allure 6 Midbass Speaker For Car Door Woofer midwoofer component set 6 inch midbass driver

    Karma Mobile Audio: Allure 6 Midbass (Pair)

    $450.00
  • Karma Mobile Audio Aspect 3 three inch Midrange speaker drivers for car audio with their grille installed

    Karma Mobile Audio: Aspect 3 – 3 Inch Midrange Speaker (Pair)

    $199.00
  • Karma Mobile Audio Aspect 6.1 6-inch midbass car audio speaker driver with tweeter installed in its pod for easily installation

    Karma Mobile Audio: Aspect 6.1 – 6 Inch Component Speaker Set

    $299.00
  • Pair of Karma Mobile Audio Aspect 6.9 6x9 Midbass driver. 6x9 woofer speaker for car audio.

    Karma Mobile Audio: Aspect 6.9 – 6×9 Midbass Speaker (Single Driver)

    $199.00
  • Accuton Automotive C30AM Ceramic Tweeter

    $4,300.00
  • Accuton Automotive C100AM Ceramic Midrange Speaker

    $4,300.00
  • Accuton Automotive C165AM Ceramic Midbass Speaker

    $4,300.00
  • Micro Precision Z-Studio High End Car Audio Tweeter

    Micro Precision Z-Studio Tweeter

    $4,300.00
  • Micro Precision Z-Studio 100F Mkii 3.5 inch high end car audio midrange speaker

    Micro Precision Z-Studio 100 F MK II 3.5″ Midrange

    $4,300.00
  • Micro Precision Z-Studio 170 6.5 Inch High-End Car Audio Midbass Speaker

    Micro Precision Z-Studio 170 6.5″ Midbass

    $4,300.00
  • Micro Precision 7-Series 7.28 MkIV Tweeter Silver Pair

    Micro Precision 7.28 MkIV Tweeter

    $1,100.00
  • Micro Precision 7.16 Mk iii Midbass Driver Sitting Upright

    Micro Precision 7.16 Mk III 6.5″ Midbass

    $800.00
  • Micro Precision 5-Series Amplifier

    Micro Precision 5-Series 2-Channel Stereo Amplifier

    $1,500.00
  • Micro Precision 7-Series DC/DC Converter

    $1,500.00
  • Micro Precision 7 Series Amplifier Black

    Micro Precision 7-Series Mono Amplifier

    $1,500.00
  • MIcro Precision Z Studio 4C 4-Channel Amplifier

    Micro Precision Z-Studio Z-ST 4c 4-Channel Amplifier

    $9,999.00
  • Sale! Audiomobile Evo 2412 12 Inch Subwoofer Front

    Audiomobile Evo 2412 – 12″ Dual 4-ohm Subwoofer

    Original price was: $550.00.Current price is: $500.00.
  • Sale! Audiomobile Elite 3210 10 Inch 3-ohm Subwoofer Front

    Audiomobile Elite 3210 – 10″ 3-ohm Subwoofer

    Original price was: $650.00.Current price is: $600.00.
  • Sale! Audiomobile Encore 4412 Front

    Audiomobile Encore 4412 – 12″ Dual 4-ohm Subwoofer

    Original price was: $700.00.Current price is: $650.00.
  • Sale! Audiomobile Encore 4415 15 inch Subwoofer

    Audiomobile Encore 4415 – 15″ Dual 4-ohm Subwoofer

    Original price was: $850.00.Current price is: $750.00.
  • Sale! Blackhole Tile Sound Absorber sound deadener For Car Doors

    Blackhole Tiles

    $220.00$350.00
    This product has multiple variants. The options may be chosen on the product page
  • ResoNix Sound Solutions BMW Mercedes Benz Volvo MOST25 MOST150 Amplifier Audio Interface

    ResoNix EZ V-M150 Interface – 2018+ Volvo OEM Pre-Amp Audio Interface

    $920.00
  • ResoNix Sound Solutions Trioma Valse MOST150 Digital Preamplifier Preamp Interface For Volvo VW Mercedes

    Valse MOST150 Interface – Mercedes, Volvo, VW MOST150 Optical Audio Interface

    $850.00

Thank You!

       Thank you for scrolling down this far! If you made it here, you are probably interested in what we have to offer. Let me tell you a little bit more about us. ResoNix is a company that produces the highest-performing automotive sound treatment materials on the market, including constrained layer dampers (CLD), sound absorbers, noise barriers, and decouplers. In addition to our own industry-leading products, we also sell and distribute a carefully curated selection of items from other premium brands, making ResoNix a one-stop shop for high-quality car audio systems. Every product we offer has been chosen or designed with one goal in mind—delivering the best results possible that you can trust.

       What makes ResoNix different? First, it starts with our approach. ResoNix was born out of frustration with the subpar performance and misleading claims of other sound treatment products in the market. We needed materials that met the highest possible standards for real-world applications, and when we couldn’t find them, we created them. Our products are backed by in-depth knowledge of how sound treatment works, both in theory and in practice. We have combined years of hands-on experience with data-driven research and testing to create a line of products that outperforms anything else available. From our CLD Squares to our Fiber Mat sound absorbers, every material is engineered without shortcuts and designed to provide unparalleled performance.

       ResoNix is also proud to say that all of our sound treatment materials are made in America. This isn’t just a talking point, it’s a reflection of our commitment to quality and accountability. We also partner with other car audio manufacturers such as Accuton Automotive, Micro Precision, and Karma Mobile Audio who share our values and meet our exacting standards, ensuring that every product we produce and sell is built to last and performs as promised. For example, our CLD Squares feature a specially formulated butyl compound with no fillers or gimmicks, combined with a high-grade aluminum layer that delivers superior damping performance. These materials are not just “good enough.” They are the best on the market, as confirmed by independent testing and real-world standardized test results.

       But our products are only part of the story. At ResoNix, we believe that customer support and education are just as important as the materials we sell. We don’t just want you to buy our products; we want you to use them to their full potential. That’s why we provide detailed resources, personalized advice, and unmatched customer service. Whether you’re a seasoned professional or a DIY enthusiast, we’re here to help you make the right choices for your specific application. From choosing the right materials for your goals to providing step-by-step guidance on installation techniques, our mission is to make your project a success.

       What really sets ResoNix apart is our real-world experience. ResoNix started as a necessity for Apicella Auto Sound, where we specialized in building high-end car audio systems that demanded absolute perfection. We know what it takes to create a system that not only sounds amazing but also performs flawlessly in a moving vehicle. Unlike many other companies that rely solely on marketing buzz, we understand the practical challenges of treating and working within automotive environments. This means we don’t just design products that look good on a spec sheet. We design, produce, and sell solutions that work better than anything else on the market.

       Take, for example, our ResoNix Guardian sound absorber. It was created because no other product could fully meet the needs of automotive applications. Featuring hydrophobic melamine foam for superior absorption and thermal insulation, Guardian outperforms competitors in every measurable way. Similarly, our Fiber Mat products are among the only ones made in the USA using advanced fibrous technology for maximum acoustic performance. And when it comes to our ResoNix Barrier, we’ve moved beyond outdated materials like mass-loaded vinyl to offer a flexible and shapeable noise barrier that is thinner, heavier, and easier to work with, while still being incredibly effective.

       At ResoNix, we don’t just stop at sound treatment. We also distribute high-end audio products, including Accuton Automotive and Micro Precision, and offer services like Remote DSP Tuning, and Sound System Design & Installation Consultation services. Whether you’re looking for products to quiet road noise, improve the clarity of your sound system, or solve noise issues in industrial or marine environments, we have the expertise and products to help. Everything we do is rooted in the belief that quality and performance should always come first.

       If you’re tired of misleading claims, subpar materials, and poor customer service, ResoNix is here to change the game. We’re not here to sell you something you don’t need or offer generic, off-the-shelf solutions that fall short. We’re here to provide the best tools, the best guidance, and the best results in the industry. At ResoNix, it’s not just about making your car quieter or your sound system better, it’s about doing it right, every time.

-Nick Apicella
Founder, Owner, & Operator of ResoNix Sound Solutions