Welcome to our eBay Store! ABOUT US PAYMENT SHIPPING RETURNS CONTACT US Menu Home Amplifiers Subwoofers Speakers Marine Loaded Enclosures Company Skar Audio SDR-8 D4 8" 700 Watt Max Power Dual 4 Ohm Car Subwoofer Please click on the images below to enlarge PRODUCT INFORMATION Description The Skar Audio SDR-8 D4 was designed to deliver hard hitting, low spectrum sound. Featuring a high flux ferrite motor, this versatile 8-inch woofer is conservatively rated at 700 watts max power. Dont let the size fool you, the SDR-8 D4 is capable of reproducing low end frequencies with authority. The SDR-8 D4 is the perfect solution for a 350-700 watt daily driver, featuring a 2-inch, high temperature copper voice coil that is attached to a sleek and attractive red spider system. The high roll foam surround and competition grade paper cone found on the SDR-8 D4, allows the woofer to produce riveting low end bass response, that will impress the listener every time it is playing. Specifications Skar Audio SDR-8 D4 - 8" Component Car Subwoofer Dual 4 Ohm Voice Coil Configuration Peak Power: 700 Watts RMS Power: 350 Watts Competition Grade Pressed Paper Cone High Roll Foam Surround Advanced Air Flow Cooling System 2" High Temperature Copper Voice Coil Motor Weight: 49 oz Frequency Response: 30 Hz - 350 Hz Sensitivity: 83.7 dB Fs: 39 Hz Re: 3.2 Ohms Qms: 5.1 Nref: 0.126% Qes: 0.68 Qts: 0.61 Nref: 0.14% Cms: 0.121 mm/N Bl: 7.35 n/a Vas: 6.98 L Mms: 72.8 gr Sd: 201 cm² Xmax: 8.8 mm Enclosure Recommendation Specifications Recommended Sealed Volume: 0.55 ~ 0.75 ft³ Recommended Ported Volume: 0.75 ~ 1.00 ft³ Port Area: 10.5 in² Port Length: 19.5" Tuning Frequency: 39 Hz Mounting Depth: 4.5625" Total Height: 5.5" Outside Diameter: 8.5" Cut-Out Diameter: 7.25" Magnet Diameter: 5.25" Enclosure specifications do not include subwoofer, bracing, and port displacement About us About skar audio Skar Audio was founded with the principle of designing and manufacturing the highest quality car audio products backed by world class customer support. We believe that our customers define who we are as a company, which is why we believe so strongly in putting them first. Founded in early 2012 by the current CEO, Kevin Schlenker, Skar Audio has grown from just a hobby, into a business that now employs a full time staff of nearly 20 people. We have a highly dedicated team that is constantly raising the bar and executing with precision, all while keeping our customers at our core. Since day one, our focus as a company has been to design and engineer products that are constantly raising the bar and defining new limits. We emphasize on designing competition grade products priced for the normal consumer, but without sacrificing build quality. It is important to us that if you see our products being used in the lanes, that you have access to obtaining those products. As a manufacturer, we utilize a network of brick and mortar retailers around the country to put the product in hands of certified technicians that know the product inside and out, and can easily help our customers with sales and installation. Skar Audio is located in the heart of the manufacturing district in Tampa, Florida. Our headquarters is home to the proud staff of nearly 20 people, who are audiophiles themselves and love to serve our customers everyday. With our facility being over 17,000 sq ft, and featuring show rooms, testing rooms, a new product development center, as well our warehouse and offices; we are happy to offer tours to local or visiting enthusiasts and customers to show them what we are all about. We take the hands on approach in delivering value to everyone we deal with, and maintain an open door policy at the office. payment options Safe and secure payment by PayPal returns policy If you’re having second thoughts or a sudden change of heart, don’t worry; you have 30 days to return any items from your purchase made on eBay, for a full refund. Return shipping will be provided If the product was purchased past the 30 days you have a 2-year warranty on your product and you can send it in to us to be tested and warrantied. contact us Feel free to contact us using eBay Messaging system using this LINK ADD OUR STORE TO YOUR FAVOURITES & RECEIVE EMAIL NEWSLETTERS ABOUT NEW ITEMS & SPECIAL OFFERS sign up Skar Audio was founded with the principle of designing and manufacturing the highest quality car audio products backed by world class customer support. We believe that our customers define who we are as a company, which is why we believe so strongly in putting them first. SHOP CATEGORIES Amplifiers Subwoofers Speakers Marine Loaded Enclosures Company > Shop pages About us Shipping Payment Returns Contact us Contact information Skar Audio Hours: Monday - Friday: 9:00 AM - 5:30 PM © 2020 Skar Audio, LLC.