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The outdoor environment presents special challenges. Water, high humidity, wide temperature range and relentless exposure to the sun take a toll on ordinary speakers. Many environmental speakers compromise durability or sound quality. Not so with the Polk Audio Ultra Marine Series. Designed and styled specifically for use in outdoor leisure activities, the Ultra Marine Series isn't just a car speaker labeled for use on a boat, hot tub or outdoor kitchen.

The MM651UM is a component coaxial speaker that can be installed in a tower canister or traditionally mounted in a boat. A unique tweeter-on-grille design eliminates the traditional tweeter post, resulting in a totally sealed front. With waterproof materials, it will stand up to just about any harsh marine environment while sounding great. The MM651 UM is available with silver spokes and black hub (SB) or black spokes and silver hub (BS).

The MM6501 UM is a dedicated component separates system that reliably produces great sound by using advanced materials. This top performing speaker system also can be mounted in a boat or can enclosure. The MM6501 UM is available as a system with silver spokes and black hub (SB).

The Ultra Marine Series also brings the very lowest frequencies on board with superb definition with the MM1040 UM subwoofer. A special grille for this subwoofer, the MM10G UM, is available in combinations of silver spokes/black hub (SB) and black spokes/silver hub (BS).
MM6501UM
6.5" Component Separate Speaker
  • Features
  • Specifications
  • Sealed Crossover Assembly Built Into Back of Magnet results in less space needed for installation
  • Stainless Steel Heavy Duty Input Terminals will not corrode or tarnish
  • Passes The Most Rigorous 600 Hours of Salt Fog and UV Testing
  • Stainless Steel Heavy Duty Input Terminals will not corrode or tarnish
  • Marine Certified: passes the most rigorous 600 Hours of Salt Fog (B117-03) and UV (D4329-99) Testing
  • Dynamic Balance® Driver Technology for pure, distortion free sound
  • Neodymium driver magnets for lightweight, high power performance
  • Light weight and rigid Carbon Composite Basket
  • Woven Glass Composite Cones feature tremendous stiffness-to-mass ratio
  • Lower mass means faster transients and finer detail
  • Klippel Optimized Components for the best possible performance, even at extreme listening levels
  • Large-Diameter Voice Coil (30mm) increases reliability and power handling capacity

MSRP: $349.95

  • Woofer Size: 6.5"
  • 1” soft dome tweeter
  • Frequency Response :40 Hz-25kHz
  • Nominal Impedance: 4 ohns
  • Power Handling (continuous): 125 watts
  • Power Handling (peak): 250 watts
    Efficiency: 92db
  • Mounting Depth: 2.625”
  • Cutout Diameter: 5.062”
  • Certified for marine use

MSRP: $349.95
MM651UM
6.5" Component Coaxial Speaker
  • Features
  • Specifications
  • Completely Sealed front design prevents water intrusion
  • Rugged, Built-On Grille Includes Tweeter Mount which eliminates the traditional tweeter post
  • Sealed Crossover Assembly Built Into Back of Magnet results in less space needed for installation
  • Stainless Steel Heavy Duty Input Terminals will not corrode or tarnish
  • Dynamic Balance® Driver Technology for pure, distortion free sound
  • Neodymium driver magnets for lightweight, high power performance
  • Light weight and rigid Carbon Composite Basket
  • Woven Glass Composite Cones feature tremendous stiffness-to-mass ratio
  • Lower mass means faster transients and finer detail
  • Klippel Optimized Components for the best possible performance, even at extreme listening levels
  • Large-Diameter Voice Coil (30mm) increases reliability and power handling capacity
  • Marine Certified: passes the most rigorous 600 Hours of Salt Fog (B117-03) and UV (D4329-99) Testing

MSRP: $239.95

  • Woofer Size: 6.5"
  • 1” soft dome tweeter
  • Sensitivity: 92 dB
  • Frequency Response:
  • 40Hz—25KHz
  • Power Handling (continuous): 100 Watts
  • Power Handling (peak): 200 watts
  • Nominal Impedance: 4 ohms
  • Mounting Depth: 2.625”
  • Cutout Diameter: 5.062”
  • Certified for marine use

MSRP: $239.95
MM1040UM
10" Subwoofer
  • Features
  • Specifications
  • Stainless Steel Heavy Duty Input Terminals will not corrode or tarnish
  • Passes The Most Rigorous 600 Hours of Salt Fog and UV Testing
  • Light weight and rigid Carbon Composite Basket
  • Dynamic Balance® Driver Technology for pure, distortion free sound
  • Polymer Woofer Cones and Butyl Rubber Surrounds will not break down over time and will survive the rigors of harsh marine environments
  • High Temperature Copper Voice Coil (50mm) and Polyimide Former for extremely low distortion bass output
  • Heavy Duty Stainless Steel Heavy Duty Input Terminals will not corrode or tarnish.
  • Will accommodate speaker wire up to 8 AWG or twisted pairs of 12 AWG
  • Klippel Optimized Components for the best possible performance, even at extreme listening levels. Available Matching Grille provides protection
  • Marine Certified: passes the most rigorous 600 Hours of Salt Fog (B117-03) and UV (D4329-99) Testing

MSRP: $199.95

  • Subwoofer size: 10”
  • Frequency Response: 24 Hz-200Hz
  • Nominal Impedance: 4 ohns
  • Power Handling (continuous): 350 watts
  • Power Handling (peak): 700 watts
  • Efficiency: 91db
  • Mounting Depth: 1.1875”
  • Cutout Diameter: 9.125”
  • Certified for marine use

MSRP: $199.95
MM10GUM
10” Component Subwoofer Grille for the MM1040 UM
MSRP: $29.95