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Alpine SWR-823D

350W 8" Type-R Dual 2 ohm Subwoofer

Alpine
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• 1000W Peak
• 150-350W RMS
• Kevlar Reinforced Pulp Cone Woofer
• Santoprene Rubber Surround
• Progressive NOMEX Spider
• 4-Layer Dual Voice Coil

Learn more about the swr823d

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

swr8d2 thumbnail

Alpine Type-R SWR-8D2

OUR PRICE: $169.95

View item

Product Highlights


• 1000W Peak
• 150-350W RMS
• Kevlar Reinforced Pulp Cone Woofer
• Santoprene Rubber Surround
• Progressive NOMEX Spider
• 4-Layer Dual Voice Coil

Description


Alpine brand icon

Authorized dealer

Product 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

Alpine products are warranted solely by Sonic Electronix, Inc. under the same period and terms as the original Alpine warranty. Sonic Electronix is not an Authorized Alpine Dealer and Alpine requires all merchandise purchased by Sonic Electronix customers to be returned solely to Sonic Electronix. Alpine products are also covered by our Standard Return Policy for returns on exchanges or refunds within 30 days from the date of purchase.

Product history:

Alpine SWR-8D2 thumbnail
(newest, current model)
Alpine SWR-823D thumbnail
(previous model, replaced by Alpine Type-R SWR-8D2)

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Alpine SWR-823D Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Alpine SWR-823D Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Alpine SWR-823D Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

Wiring Guide to Wire 4 Alpine SWR-823D Subwoofers

2 Channel Amp

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)
2 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)
4-1/2"
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
Sonic Electronix

Item Details


Manufacturer:

Model Number:

SWR-823D

Weight:

10.50lbs

Internal SKU:

swr823d

Internal Product ID:

34384

Product and How-to Videos


Customer Ratings & Reviews



5 star
50%
4 star
50%
3 star
0%
2 star
0%
1 star
0%



Durability
4.5
Value
4.5
Features
4.5
Design
4.5
Usability
4.5

Customer Reviews

Sort by:

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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.

By cesar on February 22, 2012

8

found this helpful.

solid value

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

By mitch on February 12, 2013

4

found this helpful.

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