See all parts that fit your 2004 F-150
Alpine SWR-823D 8" Type R Subwoofer + Cache CDM Dead Shield Sound Dampening Material
8" Dual 2 ohm Type R Subwoofer • 1000W Max • 150W-350W RMS • Kevlar Reinforced Pulp Cone Woofer • Four 12" x 36" Pieces of Dead Shield Sound Dampening Material • Eliminates Road Noise • Simple To Install • Increases sound quality and output
Learn more about the swr823d_cdm8" Dual 2 ohm Type R Subwoofer • 1000W Max • 150W-350W RMS • Kevlar Reinforced Pulp Cone Woofer • Four 12" x 36" Pieces of Dead Shield Sound Dampening Material • Eliminates Road Noise • Simple To Install • Increases sound quality and output
This Sonic Electronix Exclusive Bundle showcases an 8" Dual 2 Ohm Alpine Type R Series Subwoofer. This subwoofer is rated at 150-350 watts RMS of continues power and 1000 watts of Max power. The subwoofer is equipped with a Kevlar reinforced pulp cone and Injection Molded Santoprene rubber surround for rigidity and performance. It is also equipped with one sided terminals for a fast and simple installation . With an Airlow Management system that directs air across the heatsink for thermal power efficiency and sound clarity. This Alpine Type-R series subwoofer will produce tight and efficient bass over long periods of use. In order to improve the all around sound of your audio car system, this bundle also includes Four 12" x 36" pieces of Dead Shield sound dampening material. This dampening material will help reduce engine noise, vibrations, road noise and rattling to give you a higher sound quality. Four step peel and stick application makes installation simple and efficient. This sound dampening material is sure to improve the over all quality and output of your system.
Best selling similar products
Manufacturer:
Model Number:
SWR-823D_CDM
Weight:
21.30lbs
Internal SKU:
swr823d_cdm
Internal Product ID:
36739
Excellent product
This is great material and is very easy to put on with a heat gun!
24 found this helpful
Great package deal value.
I recieved this as part of a package deal. It is enough to cover the lid of my 98 Civic sedan trunk. This will clean up the sound of your lows by decreasing noise (rattles, distortion of sound, etc). This is the first step in noise reduction and everybody should start here.
I doubt it will create a noticable increase in sound from your speakers.
Very flexible, sticks like crazy! Easy to work with.
23 found this helpful
Great Price and Product
I found the price great for the product I got. Installation was very easy, product sticks very well (Remember to clean/prep the surface). I noticed a difference right away in my music as well as overall noise level while driving on the highway (Doors done - trunk is next). Not the thickest sound dampening out there but it def. helps :)
24 found this helpful
WOW !! CAN'T BELIEVE THESE ARE 8"
We bought 2 of these for a small truck. These are the nicest looking 8" subs. Both subs sealed and being pushed by an Alpine MRP-500 They sound like 2 10" subs! These wont rattle the car next to you but, people will wonder where you are hiding the big subs. Well worth it if you have limited space.
18 found this helpful
The battle against rattle
Got the sound dampening door kit with some speakers, the installer put it on the rear deck of my vehicle where my two rear speakers and factory sub are. The difference is night and day, expensive but quality, good to get with speakers or a sub.
22 found this helpful
solid value
took a while to break in but once they did sound is just what i want
14 found this helpful
Cancel
Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.