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Updated: 06 Apr 2026

10 Best Marine Speakers Coaxial

#1 Best Pick
Kicker KM4 4-Inch (100mm) Marine Coaxial Speakers with 1/2-Inch (13mm) Tweeters, 2-Ohm, Charcoal and White Grilles

Kicker KM4 4-Inch (100mm) Marine Coaxial Speakers with 1/2-Inch (13mm) Tweeters, 2-Ohm, Charcoal and White Grilles

Brand: KICKER
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  • Pair KICKER 45KM42 4" Marine Speakers KM4. RMS Power Handling: 50 Watts. Peak Power Handling: 150 Watts.
  • Sensitivity: 89 dB. 1/2-Inch PEI Tweeter. Locking/Sealed Terminal Covers. UV-Treated Polypropylene Woofer With Santoprene Surround.
  • UV-Resistant Polymer Basket. 316L Stainless Mounting Hardware Included. Charcoal and White Grilles Included.
  • Meets or Exceeds ASTM Standards for UV and Salt/Fog Exposure. Frequency Response: 60 Hz - 20 kHz.
  • Impedance: 2 Ohms. Mounting Hole Diameter: 3.81" inches. Mounting Depth: 1.875" inches
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#2 Best Value
Polk Audio DB692 DB+ Series 6"x9" Three-Way Coaxial Speakers with Marine Certification, Black

Polk Audio DB692 DB+ Series 6"x9" Three-Way Coaxial Speakers with Marine Certification, Black

Brand: Polk Audio
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  • High performance audio upgrade that delivers signature quality sound that goes beyond OEM factory systems
  • Marine certified with IP55 rating (water- and dirt-resistant) and tested for salt-fog, UV and humidity
  • Polypropylene and UV tolerant cone with waterproof inner and outer surrounds
  • Simple drop-in installation for any vehicle including cars, boats, ATVs—you name it
  • Cut out Diameter 5.97" H x 8.8" W Bottom Mount - 3.83" Top Mount - 3.25"
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#3 Budget Pick
Jensen 6.5" Coaxial White MS6007WR Marine Speaker

Jensen 6.5" Coaxial White MS6007WR Marine Speaker

Brand: ASA
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  • 6-1/2 inch coaxial white marine speaker
  • one piece molded chassis
  • hole size: 5 inch
  • mounting depth: 2.4 inch
  • Fit type: Universal Fit
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#4 Top Choice
Polk DB652 Ultramarine Dynamic Balance Coaxial Speakers, 6.5" - Pair

Polk DB652 Ultramarine Dynamic Balance Coaxial Speakers, 6.5" - Pair

Brand: Polk Audio
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  • Dynamic Balance technology delivers signature quality sound
  • Marine certified (IP55); Polypropylene and UV tolerant cone with waterproof surrounds
  • 92 dB sensitivity (1 watt @ 1 meter); 40 Hz to 22kHz frequency response
  • 100W Continuous power handling; 300W Peak power handling
  • Includes removable sport grilles. Nominal Impedance- 4 ohms
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#5 Popular Choice
KENWOOD KFC-1613MRB/W 6.5 Inch 2 Way Coaxial Waterproof Marine Motorsports Boat Speakers, Pair, 4 Ohm, 100 Peak Watts (White)

KENWOOD KFC-1613MRB/W 6.5 Inch 2 Way Coaxial Waterproof Marine Motorsports Boat Speakers, Pair, 4 Ohm, 100 Peak Watts (White)

Brand: KENWOOD
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  • 6.5 Inch 4 ohm 2-Way Marine Motorsports Speaker. Perfect for ATV, UTV, Wave Runners, Motorcycle and Golf Carts. Any outdoor application.
  • Waterproof Polypropylene Cone, 1-Inch Aluminum Voice Coil, Balanced Dome Tweeter
  • Surround: Rubber - For durability in harsh environments, UV Resistant Grilles
  • Impedance: 4 Ohms, Frequency Response: 60 Hz - 20 kHz, Sensitivity: 87 dB
  • Mounting Depth 2-15/16”, Cutout: 5"
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#6 Top Pick
Skar Audio SK65M 6.5" 2-Way Marine Full Range 320 Watt Coaxial Speakers, Pair (White)

Skar Audio SK65M 6.5" 2-Way Marine Full Range 320 Watt Coaxial Speakers, Pair (White)

Brand: Skar Audio
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  • 6. 5" 2 Way Coaxial Full Range Marine Grade Speakers, Pair
  • Peak Power: 320 Watts (Pair)
  • RMS Power: 160 Watts (Pair)
  • Premium Microfiber Composite Mineral Filled Mid Woofer Cone with Butyl Surround
  • 1" Marine Grade Silk Dome Tweeter Mounted on Top of Mid Range for Balanced Sound
  • Impedance: 4 Ohms
  • 1. 2" SV Voice Coil.Sensitivity: 88 dB, Frequency Response: 57 Hz 20, 000 Hz
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#7 Top Pick
Pyle 6.5" Marine Boat Speakers, Waterproof 2-Way Outdoor Stereo, 120W Full Range Audio for Boat, ATV, UTV, Black (Pair)

Pyle 6.5" Marine Boat Speakers, Waterproof 2-Way Outdoor Stereo, 120W Full Range Audio for Boat, ATV, UTV, Black (Pair)

Brand: Pyle
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  • COMPLETELY WATERPROOF: This is a marine speaker that’s completely waterproof and can be used for several vehicles because it can withstand heavy water splashes and other outdoor conditions
  • 120 WATTS POWER: The speaker has a 20 Oz. circuit magnet for a full range audio and complete stereo speaker sound system. The power output is 60 Watts RMS/120 Watts peak. It has a frequency response of 45Hz-16Khz and 4 Ohms impedance
  • WEATHER RESISTANT: It’s a weather resistant speaker made of Polypropylene cone with cloth surround for a rugged and durable design. It is also engineered with heavy duty molded ABS plastic basket and grill construction to combat sun damage
  • LOW PROFILE DESIGN: Constructed with a low profile design and 1” Aluminum voice coil that can be easily used on boats, marine watercraft and other vehicles. The classic black look also gives extra style to the vehicle
  • 6.5” STANDARD SIZE These marine speakers are easy to install with 6.5 inches standard size, complete wirings and mounting hardware. It has a universal standard OEM replacement size with a mounting depth of only 2.48” and cut-out size of 5.31”
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#8 Top Pick
Pyle 6.5 Inch Dual Marine Speakers - 2 Way Waterproof and Weather Resistant Outdoor Audio Stereo Sound System with 400 Watt Power, Polypropylene Cone and Butyl Rubber Surround-1 Pair

Pyle 6.5 Inch Dual Marine Speakers - 2 Way Waterproof and Weather Resistant Outdoor Audio Stereo Sound System with 400 Watt Power, Polypropylene Cone and Butyl Rubber Surround-1 Pair

Brand: Pyle
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  • COMPLETELY WATERPROOF: This is a marine speaker that’s completely waterproof and can be used for several vehicles because it can withstand heavy water splashes and other outdoor conditions
  • 200 WATTS POWER: The speaker has a 20 Oz. circuit magnet for a full range audio and complete stereo speaker sound system. The power output is 200 Watts RMS/400 Watts peak. It has a frequency response of 85Hz-20Khz and 4 Ohms impedance
  • WEATHER RESISTANT: It’s a weather resistant speaker made of Polypropylene cone with cloth surround for a rugged and durable design. It is also engineered with heavy duty molded ABS plastic basket and grill construction to combat sun damage
  • LOW PROFILE DESIGN: Constructed with a low profile design and 1” Aluminum voice coil that can be easily used on boats, marine watercraft and other vehicles. The classic black look also gives extra style to the vehicle
  • 6.5” STANDARD SIZE These marine speakers are easy to install with 6.5 inches standard size, complete wirings and mounting hardware. It has a universal standard OEM replacement size with a mounting depth of only 2.48” and cut-out size of 5.31”
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#9 Top Pick
Polk Audio DB402 DB+ Series 4" Coaxial Speakers with Marine Certification, Black

Polk Audio DB402 DB+ Series 4" Coaxial Speakers with Marine Certification, Black

Brand: Polk Audio
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  • High performance audio upgrade that delivers signature quality sound that goes beyond OEM factory systems
  • Marine certified with IP55 rating (water- and dirt-resistant) and tested for salt-fog, UV and humidity
  • Polypropylene and UV tolerant cone with waterproof inner and outer surrounds
  • Simple drop-in installation for any vehicle including cars, boats, ATVs—you name it
  • Cut out Diameter - 4.09" Bottom Mount - 2" Top Mount - 1.79"
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#10 Top Pick
Polk Audio DB522 DB+ Series 5.25" Coaxial Speakers with Marine Certification, Black

Polk Audio DB522 DB+ Series 5.25" Coaxial Speakers with Marine Certification, Black

Brand: Polk Audio
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  • High performance audio upgrade that delivers signature quality sound that goes beyond OEM factory systems
  • Marine certified with IP55 rating (water- and dirt-resistant) and tested for salt-fog, UV and humidity
  • Polypropylene and UV tolerant cone with waterproof inner and outer surrounds
  • Simple drop-in installation for any vehicle including cars, boats, ATVs—you name it
  • Cut out Diameter - 4.76" Bottom Mount - 2.01" Top Mount - 1.74"
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