0ur opinion:

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2-way 4' speakers (pair) * 2-ohm impedance for extra power (compatible with all factory or aftermarket car stereos) * Plus 0ne woven-glass-fiber woofer cone with rubber surround * 3/4' M.M.D. dome tweeter * computer-optimized outboard crossovers with tweeter level control *


Some more accessories for this product for you:
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Some more accessories for this product for you:

• Dynamat 10115 Original Speaker Kit Two 10-in. x 10-in. Sheets
• Dynamat 10135 Original Door Kit With four 10" x 32" sheets
• Dynamat 10415 Xtreme Speaker Kit Two 10-in. x 10-in. Sheets
• Dynamat 10435 Xtreme Door Kit With four 12" x 36" sheets
• Crimp Tool and Connectors Over 150 pieces

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Buyer's feedback: - * The Kappa Legacy ...
I have been upgrading my cars stereo systems for the past twenty years. If you are looking for the best speakers money can buy--- Infinity Kappa is not it! However, if you are an everyman's audiophile on a budget looking for accurate reproduction and durability out of a speaker, you need to look at the Kappa series. I have tried a potpourri of top brands over the years and keep coming down to two names for the application I am looking for. For accurate full range on a budget it's infinity Kappa. For accurate vocal reproduction it's Focal. Focal is a bit pricier but for that special clean vocal performance they are a quantum leap better. I am upgrading my old Jaguar now with these 4" Infinities Kappa mainly because they are 2 ohm high efficiency speakers and can keep up with the superfluous bass the factory built in bass chamber produces.
Kappa 2-ohm high efficiency speakers are perfect to upgrade the original system in your car especial if you don't plan additional amplification. They require less power to produce sound and the result is very accurate reproduction at low to the upper mid ranges of volume--on a budget.