This set of Kenwood triaxial 6 x 9 speakers perfect for any muscle car or truck owner looking to improve their audio experience. Each set includes two 6 x 9 speakers and grilles. Specifications:Woofer: 6 x 9 ConeTweeter: 5 cm coneSuper tweeter: 1.2 cm ceramicPower: 400W peak; 45W RMS4 Ohm impedenceSensitivity 9135 Hz- 20 kHz7.8 oz magnet