I've had these going 2+ years with no problems.
Bazooka MAC8002B White Marine 8 Inch 2-Way Coaxial Speakers
FEATURES:
- Plated Speaker Terminals
- Stainless Steel Hardware
- Waterproof Woofer Design
- Nylon Composite Mounting System
- UV Resistant White Grills
- White Powder Coated Speaker Baskets
- Polyurethane Rubber Woofer Surrounds
- Poly-Mica Aquamarine Woofer Cones
- Aluminum Dome Tweeters
- 12db Per Octave Crossovers
SPECIFICATIONS:
- Power Handling: 150 Watts
- Sensitivity: 94 dB
- Frequency Response: 55Hz- 20kHz