1 inch Titanium Tweeter. Oversized 1.5 CCAW Kapton Voice Coil. Large Magnet and Motor Structure. Pre-installed mounting screws included. Perfect for both marine, outdoor, and car use. Impedance: 4 Ohms. Frequency Response: 40Hz - 20KHz. Sound Pressure Level: 94dB @ 1w/1m. Total Diameter: 9.13. Cutout Diameter: 7.24. Total Height: 4.9. Mounting Depth: 3.5. New Page 4. Features: Rockville RMWK4 4 AWG Gauge Waterproof Marine/Boat Amplifier Wire Installation Kit. 20 Translucent, Twisted Pair, High Quality, Tinned-OFC Flexible PVC RCA Cable. 18 4 Gauge High Current, Low Impedance, Clear Flexible Power Cable with 3 Black Poly Woven Mesh to better resist chemicals in the battery compartment. 18 4 Gauge High Current, Low Impedance, Light Blue, Flexible Ground Cable. 25 16 Gauge 100% Tinned-CCA, White, Non-Transparent Resin PVC, Flat Speaker Cable. 25 Blue Remote Wire. (1) Silver Mini-ANL Fuse Holder Clear Shell and Clear Blue Bottom Bracket with Blue Waterproof Ring. (1) 120A Mini-ANL Fuse. (1) 80A Mini-ANL Fuse. (2) Ring Terminals. (2) Spade Terminals. (5) Speaker Cable Terminals. (1) Washer. (10) White Cable Ties The RMSTS80B marine speaker by Rockville is our step up series in our marine speaker lineup that offers a 1 titanium tweeter as well as more power handling! They have a larger magnet and can handle 500 watts RMS & 1000 watts peak! If you are using an external amplifier we recommend this series. Rockville engineers care about quality and sound more than anything else. The RMSTS80B was designed in a special molded ABS plastic basket. Our ABS baskets are un-breakable! You can smash these on the floor, or hit them with a sledge hammer and they will not break! We use the highest grade ABS plastic in the world! The polypropylene cone is reliable and sounds great. This same material is used on the top speakers on the market. We use rubber surrounds on these to eliminate unwanted distortion. In addition, rubber is a very waterproof material. The 1 titani