Product Details: 6" x 8" (also mounts in most 5" x 7" locations) N-Series 2-way Coaxial Car Speakers. Power Handling: . Peak: 540 watts per pair / 270 watts each. RMS: 180 watts per pair / 90 watts each. Polypropylene cone material. Nitrile Butadiene Rubber NBR speaker surround. 3/4" Silk Dome Tweeters. CEA-2031 compliant: Yes. 1" Voice coil. Ferrite magnet motor structure. Top-mount Depth: 2. 63 / 67 mm". Cutout Dimensions: 5. 15" / 131 mm x 7. 36" / 187 mm. Impedance: 4 ohm. Frequency Response: 70 - 20000 Hz. Sensitivity: 88 dB. Authorized Internet Dealer. 1-year Manufacturer's Warranty. Priced Per Pair. Check out the N-Series Coaxial Speakers Owner's Manual | Nvx | | NSP68 540W Peak (180W RMS) 6x8in N-Series 2-Way Coaxial Speakers with 20mm Silk Dome Tweeters | Best Buy