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Diamond Audio

At Diamond Audio we are always striving to be the best. And when you already build the HEX series, the most critically acclaimed speaker systems available for the automobile, this can be a very challenging goal to achieve.

Our new HEX Pro takes everything we have ever learned about loudspeaker development to a whole new level. We start with an improved version of our award winning HEX Cone and our patented TDX Technology and combine that with the new Pro crossover for the very best speaker system ever offered for the mobile environment. Period!

Conventional speakers use large ceramic magnets surrounding the voice coil. These magnets retain heat. TDX™ motors use a small but very efficient neodymium magnet mounted inside the voice coil and are nearly 5 times more efficient than conventional designs. In conjunction with the motor design, TDX™ Technology utilizes a die-cast aluminum basket that helps to act as a heat sink for the encapsulated motor structure. This makes for the most advanced cooling process of any speaker available.

The HEX Pro sets a new benchmark in performance. With extremely low distortion, incredible accuracy and high thermal power handling. These speakers truly have no equal.

D363 - 6" Component Set


  • Textured Copolymer Cones
  • Rubber Surrounds
  • Proprietary Composite Frames
  • Flat Progressive Spider
  • Extended Pole Motor Design
  • Rubber Boot Magnet Protector
  • Aluminum Dome Tweeters with Ferro Fluid Cooling
  • Model Specific Crossovers
  • Shallow Mount
  • Power Handling NOM/MAX - 60/120 Watts
  • Sensitivity (2.83V/1m) - 91 dB SPL
  • Frequency Response - 54-20,000 Hz
  • Mounting Depth - 2.5 inches
  • Mounting Diameter - 5.4 inches

D353 - 5.25" Component Set


  • Textured Copolymer Cones
  • Rubber Surrounds
  • Proprietary Composite Frames
  • Flat Progressive Spider
  • Extended Pole Motor Design
  • Rubber Boot Magnet Protector
  • Aluminum Dome Tweeters with Ferro Fluid Cooling
  • Model Specific Crossovers
  • Shallow Mount
  • Power Handling NOM/MAX - 45/90 Watts
  • Sensitivity (2.83V/1m) - 90.5 dB SPL
  • Frequency Response - 63-20,000 Hz
  • Mounting Depth - 2.3 inches
  • Mounting Diameter - 4.7 inches

D373i - 5" x 7" Integrated 2-Way Speaker


  • Textured Copolymer Cones
  • Rubber Surrounds
  • Proprietary Composite Frames
  • Flat Progressive Spider
  • Extended Pole Motor Design
  • Rubber Boot Magnet Protector
  • Aluminum Dome Tweeters with Ferro Fluid Cooling
  • Model Specific Crossovers
  • Shallow Mount
  • Power Handling NOM/MAX - 60/120 Watts
  • Sensitivity (2.83V/1m) - 91 dB SPL
  • Frequency Response - 47-20,000 Hz
  • Mounting Depth - 2.4 inches
  • Mounting Diameter - 4.9 x 7.1 inches

D393i - 6" x 9" Integrated 2-Way Speaker


  • Textured Copolymer Cones
  • Rubber Surrounds
  • Proprietary Composite Frames
  • Flat Progressive Spider
  • Extended Pole Motor Design
  • Rubber Boot Magnet Protector
  • Aluminum Dome Tweeters with Ferro Fluid Cooling
  • Model Specific Crossovers
  • Shallow Mount
  • Power Handling NOM/MAX - 75/150 Watts
  • Sensitivity (2.83V/1m) - 91.5 dB SPL
  • Frequency Response - 47-20,000 Hz
  • Mounting Depth - 3 inches
  • Mounting Diameter - 4.9 x 8.4 inches

D363i Coaxial Speaker


  • Textured Copolymer Cones
  • Rubber Surrounds
  • Proprietary Composite Frames
  • Flat Progressive Spider
  • Extended Pole Motor Design
  • Rubber Boot Magnet Protector
  • Aluminum Dome Tweeters with Ferro Fluid Cooling
  • Model Specific Crossovers
  • Shallow Mount
  • Power Handling NOM/MAX - 60/120 Watts
  • Sensitivity (2.83V/1m) - 91 dB SPL
  • Frequency Response - 54-20,000 Hz
  • Mounting Depth - 2.5 inches
  • Mounting Diameter - 5.4 inches