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1000W Alpine + Sound Dampening Material Bass Bundle

Alpine SWR-823D 8" Type R Subwoofer + Cache CDM Dead Shield Sound Dampening Material

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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_cdm

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Product Highlights


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

Description


Alpine brand icon

Authorized dealer

Alpine plus Sound Dampening Material Bass Bundle

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.

Alpine SWR-823D Features:
  • 8" Dual 2 ohm Type R Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 150-350 watts
  • Kevlar reinforced pulp cone woofer
  • 2-Piece Structural Parabolic diaphragm design
  • Injection molded Santoprene rubber surround
  • Alpine exclusive High Amplitude Multi-Roll (H.A.M.R) surround for impressive excursion and clean, accurate bass
  • FEA Optimized progressive NOMEX spider
  • Radial vented VC head sink
  • Concealed mount gasket system
  • Reinforced layer spider integration tinsel leads
  • Oversized 2-1/2" Voice coil
  • 4-Layer dual voice coil design
  • Voice coil made from 180°C high temperature wire on spiral cut aluminum former
  • Single-piece cast aluminum frame with Alpine Patent Pending Airflow Management System for efficient cooling
  • Airflow Management system controls the temperature of the voice coil by directing the air across the heatsink
  • One sided push terminals make installation and wiring fast and simple
  • Each terminal accepts up to 8 AWG wire for high power signal transfer
  • Concealed gasket mounting system hides the screw holes and makes for a clean install
  • Integrated grill technology allows for a seamless installation of a grill
  • US Patented Compound Radius Curve (CRC) design with integrated short sleeve configuration
  • CRC Machined motor structure creates a symmetrical magnetic field for less distortion and improves power handling
  • High-power, double-stacked strontium magnet structure
  • Newly redesigned for a 20% depth reduction
  • Frequency response: 28-400 Hz
  • Sensitivity: 83.5 dB
  • 1-year Sonic Electronix warranty
Cache CDM Features:
  • Four 12" x 36" Pieces of Dead Shield Sound Dampening Material
  • Eliminates Road Noise
  • Quiets Vibrations
  • Stops Rattles
  • Increases SPL
  • Reduces Heat
  • Simple To Install
  • Easy To Form Aluminum
  • Four step peel and stick installation
  • Increases sound quality and output
  • Up to 30% thicker than the leading competitors
  • Dimensions (each piece): 12"L x 36"W

Subwoofer Wiring Guide


Wiring Guide to Wire 1 1000W Alpine + Sound Dampening Material Bass Bundle Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

Wiring Guide to Wire 2 1000W Alpine + Sound Dampening Material Bass Bundle Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 1000W Alpine + Sound Dampening Material Bass Bundle Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

Wiring Guide to Wire 4 1000W Alpine + Sound Dampening Material Bass Bundle Subwoofers

2 Channel Amp

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
Type-R Series
Subwoofer Size
8"
Peak Power Handling
1000 watts
RMS Power Handling
350 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
2 ohm
Frequency Response
28 - 200 Hz
Sensitivity
83.5 dB
Xmax (millimeters)
14 mm
Subwoofer Design
Round / Circle
Main Cone Color
Dark Gray
Woofer Composition
Kevlar Fiber
Woofer Surround
Santoprene Rubber
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Bandpass
Ported / Vented
Sealed
Minimum Sealed Box Volume
0.15 cubic feet
Maximum Sealed Box Volume
0.50 cubic feet
Minimum Ported Box Volume
0.25 cubic feet
Maximum Ported Box Volume
0.60 cubic feet
Top-Mount Depth (Mounting Depth)
6"
Cutout Diameter
6-7/8"
Shallow Mount Installation
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SWR-823D_CDM

Weight:

21.30lbs

Internal SKU:

swr823d_cdm

Internal Product ID:

36739

Product and How-to Videos


Customer Ratings & Reviews


1000W Alpine + Sound Dampening Material Bass Bundle thumbnail image

5 star
83%
4 star
17%
3 star
0%
2 star
0%
1 star
0%



Durability
4.9
Value
4.9
Features
4.9
Design
4.9
Usability
4.9

Customer Reviews

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Excellent product

The following review is for CDM, which is a part of the bundle you are viewing.

This is great material and is very easy to put on with a heat gun!

By Matt on May 23, 2012

24 found this helpful


Great package deal value.

The following review is for CDM, which is a part of the bundle you are viewing.

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.

By Tyler on December 21, 2011

23 found this helpful


Great Price and Product

The following review is for CDM, which is a part of the bundle you are viewing.

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 :)

By Jeremy on April 2, 2012

24 found this helpful


WOW !! CAN'T BELIEVE THESE ARE 8"

The following review is for SWR-823D, which is a part of the bundle you are viewing.

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.

By cesar on February 22, 2012

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The battle against rattle

The following review is for CDM, which is a part of the bundle you are viewing.

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.

By robert paulson on July 14, 2011

22 found this helpful


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took a while to break in but once they did sound is just what i want

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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.