These redesigned fifth-generation Type-R subwoofers include an abundance of enhanced features to achieve staggering power handing capabilities, cleaner output, deeper bass extension and ultra-responsive control than ever before.
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.
Onlinecarstereo is a long time authorized online retailer of Alpine products. We source ouor inventory straight from the manufacturer so you know you are getting original Alpine merchendise. We always strive to provide the cheapest price online and 100% total customer satisfaction and after market service.
- CEA-2031 Power Rating: 350 W RMS
- Power Range: 150 W-350 W RMS (efficace)
- MS Power Handling: 350 W RMS (efficace)
- Peak Power Handling: 1000 W PEAK (de crête)
- Mounting Depth: 4-1/2′′
- Mounting Diameter: 6-15/16′′
- Displacement: -0.050 ft3
- Added Volume: +0.035 ft3
- Frequency Response: 30 Hz-200 Hz
- Material: Reinforced Parabolic Cone Structure with Poly-Mica Dust Cap & Pulp-Kevlar Cone Body
- Design: 2-Piece Structural Parabolic
- Material: Injected Molded Santoprene®
- Design: High Amplitude Multi-Roll
- Material: Nomex®
- Design: Progressive Conex® Spider with Reinforced Layer Tinsel Leads
- Material: 38mm Voice Coil with High-Temp
- Design: 4-Layer DVC Winding on Spiral Cut
- Pole Geometry: Extended Pole Geometry
- Configuration: Compound Radius Curve
- Material: Cast Aluminum
- Design: Perimeter Vented Heat Transfer
- Layout: One Side
- Design: Heavy Duty 8 gauge Push with Housing, Banana Plug Jumper
- Design: Reinforced Layer Spider Integration (Patent #6,810,988)
- Design: Concealed Mount Gasket (Integrated Grille System Ready, US Pat #7,760,900)
- Pair of SWR-8D4
- Subwoofers are usually sold as a single unit unless otherwise noted.
- UPC: 793276012371
- Weight: 20
- Authorized Internet Dealer
*Warranty: 1 Year Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 30 days from the original date of purchase with proper return authorization. After the 30 day time period, products must be returned to their original manufacturer for the remainder of the manufacturer's warranty period.