Features:

(2) Polk Audio DB522 5.25" 600w Car Audio Marine/ATV/Motorcycle/Boat Speakers
High performance audio upgrade that delivers signature quality sound that goes beyond OEM factory systems
Marine certified with IP65 rating (water- and dirt-resistant) and tested for salt-fog, UV and humidity
100 Watts at Continuous Power; 300 Watts at Peak Power
Specifications:
Cut-Out Diameter: 4.76" (121 mm)
Height: 0.31" (8 mm)
Driver Mounting Depth - Bottom Mount: 2.01" (51.2 mm)
Driver Mounting Depth - Top Mount: 1.74" (44.2 mm)
Grille - Height: 17.55 mm
Driver Complement Mid / Woofer - Diameter: 5.25" (133.35 mm)
Driver Complement Tweeter - Diameter: 0.75" (19 mm)
Max Sensitivity: 91 dB
Nominal Impedance: 4 ohm
Total Frequency Response: 55Hz-22kHz
600 Watts Peak Power Total Per Pair / 300 Watts Peak Power Per Speaker
200 Watts RMS Total Power Per Pair / 100 Watts RMS Per Speaker
Rockville Rockmat RM2 Sound Dampening Speaker Deadening Kit (2) 12" x 12" Sheets
Paintable Surface
Speaker kit for (2) speakers (Each speaker requires 2 sheets)
Kill unwanted noise, rattles, vibrations
Aluminum-coated for heat-resistance
72mil thickness
Increased flexibility
Available in both black and silver
Dimensions per sheet: 12" inch Length x 12" inch Width x 0.07' sheet Depth
Reduces unwanted noises 5-8 dB
Adhesive temperature range of -100F to 300F (-60C to 150C).
High-Tack Self-adhesive
Material Color: (Silver)
Weight: 1.32 Lbs.
Unit Dimensions: 12.4" x 12.4" x 0.47" inch