Along with the new 8” woofer, the 10” and 12” S-Series subwoofers have been re-designed from the ground up. The mounting depth of the 10” and 12” subwoofers are almost 1” more shallow than previous models at just over 4.5” for the 10” models and just over 5” for the 12” models, allowing them to fit into a wide variety of installation applications.
Diameter : 8 Inch
Maximum Power : 900 Watts
Low Frequency Response : 34 Hz
High Frequency Response : 200 Hz
Impedance : 4 Ohm
Frequency Response : 34-200 Hz
RMS Power Range : 300 Watts
Shallow Mount : No
Number of Voice Coils : Dual
Mounting Depth : 3-3/4 Inches
2 Alpine S-W8D4
S-W8D4 S-Series 8" 900 Watts Peak Power Dual 4-ohm Car Subwoofer
Impedance: 2 or 8 ohms
Cone Material: Kevlar-Reinforced Pulp
Surround Material: Rubber
Sensitivity: 83.4 db @ 1 watt
Frequency Response: 34-200hz
RMS Power Handling: 300 watts RMS
Peak Power Handling (Watts): 900
Custom-Stamped Steel Frame
Push-Type Insert Terminals with Dual Voice Coil Jumper System
Strontium Ferrite Double-Stacked Magnets
Clean, Concealed Mount Gasket System
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 1 year from the original date of purchase with proper return authorization.
Estimated Shipping Time for Special Order items is 1-3 weeks.
You may call our Customer Service Department at 310-526-8635 for a more accurate shipping estimate.
Special Order Product
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Consumer Priority Service was founded on the belief that consumers deserve
better service. Putting the satisfaction of the consumer at the forefront of our
corporate policy has driven our company to be among the very best at post sale service
both on and offline. Our lineup of consumer protection products can be found at
America’s largest retailers as well as America’s best boutique shops. Although some
of our Authorized Dealers compete with each other they all share one common belief
– Consumers Deserve A Better Service Provider. That is why your retailer has selected
Consumer Priority service, a place where you, our mutual customer, is Always Our
Why Do I need This?
Consumer Priority Service Extended Protection plans provides you with easy protection
from potentially high future repair costs. Planning ahead and taking action now
can save you the stress of dealing with unqualified servicers should your product
become defective. Saving time and money is in everybody’s best interests. We are
here for you.
What is Covered?
CPS Protection Plans are extensions of your manufacturers’ written warranty a few
added bonus features. Any malfunctions that would normally be covered within the
terms and conditions of the original written warranty would be covered through the
life of the Consumer Priority Service Extension. "Our Shield Means You're Protected."
Benefits of owning a Consumer Priority Service Plan
Zero Deductible All CPS plans are zero deductible. This means that ALLcosts
associated with Parts and Labor to repair your defective product are covered. Owning
a CPS service plan means you’re FULLY COVERED.
With CPS you can file a claim for repair or replacement 24 hours a day 7 days a
week through our consumer network at www.cpscentral.com
In-Home parts and labor protection plans provide service for your products at your
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With our Express On-Site Upgrade plan you can now upgrade any of our service
plans to include door-to-door service. We'll pickup your defective product from
your home or workplace, repair or replace it, and return it to you.
Product Replacement Plan
Any product that plugs in or takes a battery qualifies for this program. If your
product fails to operate properly under the terms of its written warranty, we will
replace it, No Questions Asked!
Consumer Priority Service provides complete coverage across all 48 contiguous states.
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If our authorized service center determines your product to be beyond economical
repair or they have unsuccessfully attempted to repair your product three times,
we will replace your product.
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Owning a CPS service plan virtually guarantees that you will get years of use from
your product through the duration of the plan.