Alpine KTX-EBKT
Subwoofer mounting brackets
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Alpine KTX-EBKT Universal Subwoofer Mounting Bracket
Product overview:
The Alpine KTX-EBKT is a heavy-duty universal mounting kit designed to securely fasten your subwoofer enclosure to your vehicle’s floor, trunk, or walls. A sliding sub box is not only a nuisance but can be a serious safety hazard in the event of an accident. This all-inclusive kit is built with 7mm powder-coated steel, providing a rock-solid foundation that prevents your enclosure from moving, ensuring both the safety of your gear and the consistency of your audio performance.
Features
Seamless Connectivity
The KTX-EBKT is engineered for "no-drill" integration with many of Alpine's modern enclosures. It is fully compatible with PrismaLink™ and R-Series Shallow Enclosures, utilizing pre-drilled holes for a direct bolt-on setup. For other Alpine Halo or universal third-party enclosures, the kit remains highly versatile; while some drilling may be required, the brackets are designed to accommodate a wide variety of mounting surfaces and box styles.
Safety & Convenience
Security is the primary focus of this kit. By anchoring your subwoofer enclosure, you eliminate the risk of it becoming a projectile during sudden stops or sharp turns. The kit is truly all-inclusive, arriving with everything from the heavy-duty brackets to a 4mm hex wrench and various lengths of tapping screws. This convenience means you won't have to make extra trips to the hardware store to find specialized fasteners for your install.
Enhanced Audio & Ambiance
Beyond safety, the KTX-EBKT actually improves your bass experience. By firmly securing the enclosure, it minimizes "baffle movement" during high-excursion playback. This reduces the diffraction of sound waves and unwanted vibrations, resulting in harder-hitting, cleaner bass and a more premium audio ambiance. Your music will sound more controlled and impactful because the energy is directed into the cabin rather than being wasted on moving the box.
Fine Tune Your Sound
The brackets are finished in a matte black powder coat, allowing them to blend seamlessly into your trunk’s interior for a professional, "factory" look. With 7mm thick steel construction, they are far more durable than standard L-brackets found at local hardware stores. This robust design allows you to "fine-tune" your enclosure’s placement for optimal acoustics, knowing that once it is bolted down, it will stay exactly where you want it regardless of your driving style.
Full Specs:
| Category | Specification |
| General | |
| Color | Black |
| Material | 7mm Steel |
| Finish | Black Powder-Coated |
| Compatibility | Alpine PrismaLink, R-Series Shallow, Halo, & Universal |
| Mounting Locations | Vehicle Floor, Trunk, or Walls |
| Installation Type | Bolt-on (No-drill for select Alpine models) |
| What's in the Box | |
| Brackets | (2) Metal Mounting Brackets |
| Screws | (12) M6x20, (8) M6x16, (2) M5x20 Machine Screws |
| Washers | (20) M6 Black Washers, (2) M5 Spring Washers |
| Tools | (1) 4mm Hex Wrench |
| Warranty Information | |
| Parts/Labor Warranty | 1 Year Limited |
What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.