(2) Rockville RVL69W 6x9" 600w Cast Aluminum Car Subwoofers Sub Woofers Competition 6x9 300W Peak / 150W RMS woofer. Power Handling Per Speaker: 300 Watts Peak / 150 Watts RMS Per Speaker, 9 pounds each!. 6 x 9" Single Voice Coil 4 Ohm subwoofer Plays extremely loud mid-bass and low frequencies. Double 70oz. Double Stacked Magnet Structure, 2" High Temperature Voice Coil, Frequency Response: 40Hz-8KHz Sensitivity: 92db @ 1W/1M. Mounting Depth 4-3/4", Butyl Rubber Surround. High Strength Pulp Cone, Cutout diameter: 8.9" x 6.1", Mounting hole diameter: 4 holes - 0.263" x 0.335" These weigh in at 9 pounds each! These are heavier than many 12" subwoofers! These can easily handle a high powered external amp. These are rated with 150 watts RMS each, however, they can handle even more than that from our testing. These are rated with strict standards. You will not be let down, we guarantee! Usually, in competitions, the one thing missing from some of the top vehicles is having mid-bass. With these speakers, you will be able to hear the mid-bass loud and clear, even if you have incredibly loud bass! You can install these in any 6x9 location, or you can install them in an empty 6x9 enclosure. Rockville RVL69W Competition 6x9 300W Peak / 150W RMS woofer Power Handling Per Speaker: 300 Watts Peak / 150 Watts RMS Per Speaker 9 pounds each! 6 x 9&#034; Single Voice Coil 4 Ohm subwoofer Plays extremely loud mid-bass and low frequencies Double 60oz. Double Stacked Magnet Structure 2&#034; High Temperature Voice Coil Frequency Response: 50Hz-8KHz Sensitivity: 92db @ 1W/1M Mounting Depth 4-3/4&#034; Butyl Rubber Surround Non-pressed Paper Cone Cutout diameter: 8.9&#034; x 6.1&#034; Mounting hole diameter: 4 holes - 0.263&#034; x 0.33&#034; Application: 6x9&#034; Midrange Speaker Basket Type: Open, Expanded Aluminium Basket Dustcap: Phase Plug Bullet 2&#034; High Temperature TIL + CCAW Voice Coil Impedance: 4 Ohm Overall Depth: 4.8inch / 122mm Mounting Depth: 4.57inch / 116mm Revc: 3.2 Ohm SPL: 85.1 dB Fo: 52.3 Hz Vas: 9.966 Ltr Cms: 151.653u M/N Md: 50 g Krm: 1.010K uOhm BL: 9.713 Tm Erm: 0.993 Qms: 4.067 Mms: 61.167 g Qes: 0.681 Mmd: 59.353 Kg Qts: 0.584 Kxm: 31.844 mH No.: 0.202 % Exm: 0.65 Rms: &#034;4.938&#034; kg/s Piston Diameter: (Oval) 201.5 x 136 mm Le:1.518 mh Vd: 150.584 cu. cm Sd: 21.512 sq. cm