Access exclusive offers, news and more.
450W Max Powered 12" Loaded Subwoofer Ported Enclosure System
• 12" GT Series Subwoofer
• GT Series Mono block Car Amplifier
• 450W Peak
• 150W RMS
• 12" Single Ported Subwoofer Enclosure
• Variable low-pass filter (40-200 Hz, 24 dB/Octave)
JBL's GT-BassPro12 powered subwoofer enclosure gives you the bass you and your vehicle deserve. Now you'll really be able feel your music's kick as you drive down the road. JBL designed this all-in-one bass system to shine in any car. It has been tuned for tight and responsive low notes.
Sonic Electronix, one of the leaders in car audio, recently visited Harman, the premium global audio and infotainment group, at their research and development locations in Northridge, California and Detroit, Michigan. The purpose of these visits was to utilize and combine the powerful brand of Harman and the industry leading knowledge behind Sonic Electronix to begin working together on developing future car audio projects.
Five Sheets of 18" x 32" (20 sq. ft.) Tri-Layer Sound Damping Material (Sound Deadening) Adhesive Black Foam Rubber
Internal Product ID:
Better than EVER
I really like the upgrades over the previous design. The rubber may be a little thinner but the foam definitely makes up for it. I love how easy it is to manipulate into the small spots on the installation to make it so much easier. I love the direction NVX took adding the foam to the design.
Keep it up guys.
10found this helpful.
love my base package. it came with an amp and it was an easy install. It really upgraded my factory sound and it hits super nice and loud.
6found this helpful.
Using this product in the door areas for mid bass improvement. I used 2 of the SDBBP40 (without the third layer of foam) to cover the whole inside of the vehicle. When I ran out of material and needed a bit more for the doors, I was thrilled to Find NVX added a dampening material with the foam backing. This is a NVX install all the way: speakers, amps, cables...
7found this helpful.
Great value, excellent product
I'm not sure how there could be a complaint here. I was pleased with the quantity of material I received given the price I paid. It's extremely adhesive material and very easy to roll down. It's malleable, yet heavy. It worked very well for the trunk and rear doors, and I may need a smaller quantity to cover the front doors, but that's still a full car under $100. 5 stars.
7found this helpful.
Decided to try this over the regular sound dampener due to the foam layer. So far it seems to be working and has minimized the rattling from my bass speaker in the trunk.
6found this helpful.
Works amazingly well, Super easy Install.
This multi layer sound deadening is great. In the past I have used multiple layers to get the best results for my vans and this stuff combines them to cut install time in half. Noise inside my camper van is significantly cut making long drives much more pleasant. The sheet size is perfect to cover large areas. My only complaint is that some of the foam layer tore while rolling making it hard to get super clean look. But since most areas get hidden this is not a problem
4found this helpful.
It work so good my trunk stop from shaking, and it was a great price
5found this helpful.
Best bang for your buck
I would recommend this product because I feel it compares very greatly to other high end brands of their competition. The only negative thing I have to say about it is that the top foam layer can rip very easily if your not very careful and try to rush the install. There’s no smell compared to brands of the same price of similar items .
1found this helpful.
The NVX SDRF40 bundled package arrived in ONE day, of the offered 2-day FREE shipping to PA! You can’t beat that.
Accurate tracking information, great value and very fast shipping.
Consider me a return customer!
Best selling similar products
• 150 watts Single 12" Subwoofer Enclosure
• 4 ohms Impedance
• Spring-loaded Terminal Posts
• Enclosure Dimensions: 10" TD x 12-1/2" BD x 19-3/4" W x 14-7/8" H
Belva BPKG212v2 Complete Amplified Bass Package
• Works with both Factory and Aftermarket Audio Systems
• Dual 12" Belva Subwoofers
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit
• Single 10" Sealed Subwoofer Enclosure with Built-In Amplifier
• 10" Subwoofer(s)
• Built-In/Includes Class D Amplifier
• Set of Terminals
• Enclosure Dimensions: Enclosure Dimensions: 12-3/8" TD x BD x 9-7/8" W x 3-1/8" H
• Low Profile Ported Subwoofer System
• 200 Watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
Rockford Fosgate Punch P300-10
• 10" Subwoofer 300 Watts RMS
• Rockford Fosgate Sealed Enclosure
• 300 Watt Class-D Mono Block
• Bass Remote Included
• Low And High level Inputs
Save up to 10 different vehicles in your garage