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Alpine 8" Type-R Series Dual 4-Ohm Mobile Subwoofer - SWR-8D4

Abt Model: SWR8D4
Regular Price $179.99
$154.95  
350W RMS/1000W Peak Power Handling/ Reinforced Parabolic Cone Structure With Poly-Mica Dust Cap And Pulp-Kevlar Cone Body/ 38mm Voice Coil With High-Temp/ Cast Aluminum Frame/ Heavy Duty 8 Gauge Push With Housing, Banana Plug Jumper Terminals/ HAMR Surround/ Spider With Reinforced Layer Spider Integration/ Redial Vented VC Heat Sink And Airflow Management System/ Machined CRC Motor Structure/ Black Finish
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Product Details

Alpine 8" Type-R Series Dual 4-Ohm Mobile Subwoofer, Model SWR8D4

Features:

  • Extreme bass fits in more places
    The Type-R Subs have been completely redesigned again to offer more installation flexibility and application versatility to build the ideal sound system. At 4-1/2" for the 8", 5 - 7/8” for the 10”, and 6 - 3/8” for the 12”, these new designs offer a near 20% reduction in mounting depth, while offering even greater output capability
  • More Excursion = More Output
    The new FEA-Optimized Motor Structure together with our revolutionary High-Amplitude Multi Roll (HAMR) Suspension Design gives the new Type-R Subwoofers the highest X-max and SPL output in the category. With a real world, measured 21mm of X-max, allow the new Type-R Subwoofers to deliver the best-in-class bass output, ultra-low distortion, and unparalleled sound quality
  • More Motor Force = More Control
    Starting with a new ten piece, segmented magnet structure, the new Type-R subwoofer has over 20% more motor force than its predecessor delivering more accurate, louder and cleaner bass with even more control. This new magnet assembly is also an integral part of the next generation of Alpine’s Patented Radial Vented VC cooling system
  • Keep it Cool = Keep it Playing
    Alpine’s Patented Radial Vented VC Heatsink and Airflow Management System (US Patent #7,634,101) helps to minimize power compression and ensures reliable long playing time by actively eliminating output-robbing heat away from the Voice Coil. The new one-piece cast aluminum frame with integrated shorting sleeve uses the entire frame as a heatsink, to allow for sustained power output and handling, even in the most extreme of applications
  • FEA Optimized = Maximum Linearity
    Alpine’s Patented Compound Radius Curve pole geometry ensure for an ultra symmetrical magnetic field, while optimizing flux density to greatly reduce distortion, while further improving power handling and output
  • Improved Power Handling
    The oversized black anodized 40 mm voice coil offers more than 35% more surface area, allowing for increased power handling to 350W RMS / 1000W Peak. To get the best performance, we recommend you pair Type-R subs with Alpine’s new PDX digital amplifiers
  • 4 Unique Alpine Technologies
    • FEA Optimized HAMR Surround
      The High-Amplitude Multi Roll Surround Design allows for extreme excursions without sacrificing valuable cone area. FEA Optimized for linearity and made with injection-molded Santoprene®, the HAMR surround is a key part of the suspension system that allows for extreme excursions with accurate, distortion-free control
    • FEA Optimized Spider w/reinforced Layer Spider Integration
      Ensures reliable and consistent control of the tinsel-leads to eliminate any possible mechanical noises or interference typical of many high-excursion designs
    • Redial Vented VC Heat Sink & Airflow Management System
      Actively manages voice coil temperatures by forcing air directly across the heatsink system
    • FEA Optimized Machined CRC Motor Structure
      Creates a symmetrical magnetic field while optimizing flux density to greatly reduce distortion, while further improving power handling and output

Specifications:

Power Handling

  • CEA-2031 Power Rating: 350W RMS
  • Power Range: 150 W-350W RMS (efficace)
  • RMS Power Handling: 350W RMS (efficace)
  • Peak Power Handling: 1000W PEAK (de crête)

General

  • Frequency Response: 30 Hz-200 Hz

Diaphram

  • Material: Reinforced Parabolic Cone Structure with Poly-Mica Dust Cap & Pulp-Kevlar Cone Body
  • Design: 2-Piece Structural Parabolic

Surround

  • Material: Injected Molded Santoprene®
  • Design: High Amplitude Multi-Roll

Spider

  • Material: Nomex®
  • Design: Progressive Conex® Spider with Reinforced Layer Tinsel Leads

Voice Coil

  • Material: 38mm Voice Coil with High-Temp
  • Design: 4-Layer DVC Winding on Spiral Cut

Motor Structure

  • Pole Geometry: Extended Pole Geometry
  • Configuration: Compound Radius Curve

Frame

  • Material: Cast Aluminum
  • Design: Perimeter Vented Heat Transfer

Terminals

  • Layout: One Side
  • Design: Heavy Duty 8 gauge Push with Housing, Banana Plug Jumper

Tinsel Leads

  • Design: Reinforced Layer Spider Integration (Patent #6,810,988)

Gasket

  • Design: Concealed Mount Gasket (Integrated Grille System Ready, US Pat #7,760,900)

Approximate Dimensions:

  • Mounting Depth: 4-1/2"
  • Mounting Diameter: 6-15/16"
  • Displacement: -0.050 ft3
  • Added Volume: +0.035 ft3

Approximate Weight:

  • Shipping: 10 lbs

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Alpine 8" Type-R Series Dual 4-Ohm Mobile Subwoofer

Alpine 8" Type-R Series Dual 4-Ohm Mobile Subwoofer

In Stock


More reasons to buy the Alpine SWR-8D4 from Abt Electronics
  • Abt.com is an authorized dealer (Learn More).
  • The Alpine SWR-8D4 is Brand New.
  • The Alpine SWR-8D4 Ships in a Factory Sealed Box.
  • Abt ships this product for free!
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