Garage
Shop

1000W Alpine + Sound Dampening Material Bass Bundle

Alpine SWR-843D 8" Type R Subwoofer + Cache CDM Dead Shield Sound Dampening Material

Alpine
Shop all Alpine
EXCLUSIVE
Product videos
highlight-star-icon

8" Dual 4 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 swr843d_cdm

We apologize

This item has been discontinued

Product Highlights


8" Dual 4 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 4 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-843D Features:
  • 8" Dual 4 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

2 Channel Amp - Bridged

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

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

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

Mono Amp

4 Channel Amp

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

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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)
4 ohms
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-843D_CDM

Weight:

21.30lbs

Internal SKU:

swr843d_cdm

Internal Product ID:

36738

Product and How-to Videos


Customer Ratings & Reviews



5 star
81%
4 star
13%
3 star
6%
2 star
0%
1 star
0%



Durability
4.8
Value
4.8
Features
4.7
Design
4.7
Usability
4.8

Customer Reviews

Sort by:

Loading...

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

23

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

21

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

22

found this helpful.

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

20

found this helpful.

surprising.

The following review is for SWR-843D, which is a part of the bundle you are viewing.

I purchased one of these for my gf after she heard my system. I was a bit greedy and threw it in my car before she got it so I can give a review. I built a .6 cube net internal enclosure tuned to 34 Hz. I had it hooked up to my bxi 1210 at 4 ohms, giving it around its rms rating.

The sub sounds incredibly clean. Probably as clean as my mag 12. It blends seamlessly with my comps, mainly due to it's extension into the higher frequencies. I was surprised at the range of notes it hit. It never struggled with stuff over 100 Hz, and remained composed down to about 30 hz. After that it rolled off quickly. In terms of spl, its not going to rattle anything loose, but it is certainly adequate for filling in the low end for a lower power install. I would not hesitate to push this past its rated power, IF DONE SO WITH CAUTION. It has taken 400+ watts at times and it has yet to bottom out.

Overall, its a very good sub for what it is meant to do. It's very clean, very punchy, and there's times where it blends so well I forget its there. Alpine has made themselves a very nice little sub here.

By Charles on November 13, 2011

10

found this helpful.

Alpine SWR-843D

The following review is for SWR-843D, which is a part of the bundle you are viewing.

Got 3 in a sealed box and i love it

By Marcus on July 2, 2011

9

found this helpful.

Great value & sound

The following review is for SWR-843D, which is a part of the bundle you are viewing.

Simple to install, awesome prices and tech support. Thanks again Sonic!

By Adam on December 2, 2012

7

found this helpful.

8" type r = good value and sound

The following review is for SWR-843D, which is a part of the bundle you are viewing.

I blew my jbl 8" sub and replaced it with this beast, pounds my mr2 right good, roof mounted mirrror shakes and err thang good sub!

By isaac on September 20, 2012

7

found this helpful.

Alpine SWR843D Product Review

The following review is for SWR-843D, which is a part of the bundle you are viewing.

Good 8" sub for the price. Only shortcoming is that it does not reproduce low frequently as well as a larger diameter sub.

By A Reviewer of this Product on May 2, 2012

7

found this helpful.

Awesome! Go hard!

The following review is for SWR-843D, which is a part of the bundle you are viewing.

I bought one, I repeat one of these to put in a custom .5 cubic foot box over the hump in my 2008 silverado crew cab and DANG! This thing sounds like a quality 12" sub. Buy it and stuff it in and be amazed. I'm pushing it with 400watts @ 2ohms and it's not bottoming out.

By Gibmusic on October 17, 2011

8

found this helpful.

Add-ons


Similar Products

Best selling similar products

Boss Elite BV765BLC with Backup Camera

• Double DIN Bluetooth DVD Multimedia Receiver
• 6.5" Touchscreen Display
• 3 sets of 2 volts preamp outputs
• 7-Band Equalizer
• Wireless remote control included
• Includes Backup Camera

(1)

$179.99

Alpine Complete Audio Package

• 7" Double DIN Bluetooth Digital Multimedia Receiver
• 480W Peak (160W RMS) 6.5" 2-way Coaxial Speakers
• 10” Loaded Subwoofer Enclosure
• Class D 2 ohms Stable Monoblock Amplifier
• Remote Bass Knob for Alpine Amplifiers

(17)

$999.99

Kenwood DMX4707S with 6.5" Speakers

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.75" Capacitive Touchscreen Display
• Apple CarPlay and Android Auto Compatible
• 3 sets of 2 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready

(27)

$292.99

Alpine iLX-W670 with License Plate Backup Camera

• Double DIN Bluetooth Digital Multimedia Receiver
• 7" Capacitive Touchscreen Display Display
• Apple CarPlay and Android Auto Compatible
• 3 sets of 4 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Correction
• SiriusXM Satellite Radio Ready

(17)

$299.95

Planet Audio P695MBRC with Backup Camera

• Double DIN Bluetooth Digital Multimedia Receiver with USB and AUX
• 6.95" Capacitive Touchscreen Display
• Smartphone compatible
• 2 sets of 4 volts preamp outputs
• Built-in Preset Equalizer

(2)

$135.99

Related Searches


SWR-843D_CDM small

Item added to your cart.

Price: $140.08

Essential add-ons
NVX 20 ft. of True Spec 8 Gauge Speaker Wire

Flexible multi-strand cable bends and twists to meet your installation needs.

$64.99

$49.99

Add to cart
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

$6.99

Add to cart
NVX SDTK20

20 Square Feet of Sound Damping Material

$89.99

$59.99

Add to cart
Stinger RKXTK

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

$209.00

$92.99

Add to cart
Dynamat Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

$236.95

$149.95

Add to cart
NVX SDRLR1 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

$9.99

$7.99

Add to cart
NVX SDRLR2 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

$11.24

$8.99

Add to cart
Belva BAMMD1

Six Function Digital Multimeter

$14.99

$6.99

Add to cart
Belva BAMMD3

Nine Function Digital Multimeter

$29.99

$9.99

Add to cart
Save up to 10 different vehicles in your garage

Loading...
Identify your vehicle and submodel details
  • Owner’s manual
  • Vehicle’s insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver’s side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon