<p>Package Includes:<br> (1) Pair of Polk Audio DB5252 5.25&quot; 600w Component Car/Marine/ATV/Motorcycle Speakers<br> (1) Rockville Rockmat RM12 12 Sq Ft Sound Dampening/Deadening Butyl Rubber Car Kit<br> <br> Features of DB5252: <br> (2) Polk Audio DB5252 5.25&quot; 600w Component Car/Marine/ATV/Motorcycle Speakers <br> High performance audio upgrade that delivers signature quality sound that goes beyond OEM factory systems<br> Marine certified with IP65 rating (water- and dirt-resistant) and tested for salt-fog, UV and humidity<br> Polypropylene and UV tolerant cone with waterproof inner and outer surrounds<br> Simple drop-in installation for any vehicle including cars, boats, ATVs—you name it<br> Zero tweeter protrusion and reduced mounting depth for a precise fit<br> Dynamic Balance technology offers a rich, clean, full-range sound<br> ¾” &amp; ½’, 20mm &amp; 13mm tweeter and midrange ensures clear, balanced mids and highs<br> 100 Watts at Continuous Power; 300 Watts at Peak Power</p> <p>Specifications:<br> Cut-Out Diameter: 4.76&quot; (121 mm)<br> Height: 0.28&quot; (7.11 mm)<br> Driver Mounting Depth - Bottom Mount: 2.02&quot; (51.2 mm)<br> Driver Mounting Depth - Top Mount: 1.74&quot; (44.2 mm)<br> Grille - Height: 17.55 mm<br> Complement Mid / Woofer - Diameter: 5.25&quot; (133.35 mm)<br> Complement Tweeter - Diameter: 0.75&quot; (19 mm)<br> Max Sensitivity: 91 dB<br> Nominal Impedance: 4 ohm<br> Total Frequency Response: 50Hz-23kHz<br> 600 Watts Peak Power Total Per Pair / 300 Watts Peak Power Per Speaker<br> 200 Watts RMS Total Power Per Pair / 100 Watts RMS Per Speaker</p> <p>Videos of RM12:<p> <center> <div class="videoframe"> <video height="360" width="640" onclick="this.play();" poster="http://www.audiosavings.com/Assets/thumbnails/rm12.jpg" src="https://player.vimeo.com/external/208659870.hd.mp4?s=1854b82725637febd650b21afced41f9e4ffc104&amp;profile_id=119" preload="none" controls="controls"></video> </div> </center><br /> <center> <div class="videoframe"> <video height="360" width="640" onclick="this.play();" poster="http://www.audiosavings.com/Assets/thumbnails/rm12-unboxing.jpg" src="https://player.vimeo.com/external/208659848.hd.mp4?s=8a5e2f66882436c6dbca053121d5058a4317e439&amp;profile_id=119" preload="none" controls="controls"></video> </div> </center><p> Features:<br> <br> Rockville Rockmat RM12 12 Sq Ft Sound Dampening Car Audio Door Kit 72 Mil+Roller<br> Rockville Rockmat RM12 - 12 Square Feet of the best sound dampening material on the market!<br> Contains 4 sheets of sound damping material – Each sheet is 12&quot; inch x 36&quot; inch (3 sq. ft. per sheet) <br> Paintable Surface<br> Recommended for use as a door kit or trunk lid kit<br> Increases SPL – The use of our Rockmat will not only make your sound more clear and eliminate distortion but it will make your music louder by <br> Eliminates sound leakage!<br> Improves Bass Quality and Reduces Bass Distortion<br> Kill unwanted noise, rattles, vibrations<br> Reduce exhaust and engine noise<br> Aluminum-coated for heat-resistance <br> 72mil thickness<br> Full car installation reduces unwanted noises 5-8 dB<br> &nbsp;</p> <p>Specifications:<br> Dimensions per sheet: 12&quot; inch Length x 36&quot; inch Width x 0.07' sheet Depth<br> Material Color: Silver<br>