N7C 7 Classic Series Speakers - 4 OHM - (Pair) White Sizes does matter! Our 7 speakers let you bring movies and televisions to life when used with home theater systems and make every note of music crystal clear when used with stereo systems in cars and boats. We have engineered these speakers with durability as much in mind as performance, using a special two part coating on our cast aluminum frame to enhance durability. These speakers are +/- 3dB from 35Hz to 19Hz. The 92 dB efficiency will allow you to drive this with most decent head units to a decent volume. If you want to crank, add a high power amp - these will handle 80W continuous and 300W peaks.4 OHM speakers are recommended for installing speakers in the same zone/channel.Features:100% WaterproofUV and Salt Water ResistantFull Range (No Crossovers)Spiderless (Less Resistance)Light (Neodymium Magnets)3 Year Warranty*Sold as a Pair WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.