top of page




HXM8 - 8" Marine Coaxial 25mm Titanium Dome Tweeter


Manufactured to IP65 marine grade compliant specifications - Bridge mounted, 25mm titanium dome neodymium tweeter - Neodymium motor structure used on 5.25, 6.5 and 8 “ mid-woofers - Thermal molded, waterproof, Kevlar® cone - Radial zip-ring to enhance high frequency reproduction - UV-treated poly carbonate cloth surround - Thermal molded, poly carbonate fiber spider is moisture and fatigue resistant - High temperature, UV-treated, injected composite basket - Waterproof wire management includes ultra-flexible high-strand PVC jacketed wire - Integrated RGB LED lights - Integrated 12dB per octave crossover - White and Black Grills Included


Diamond Audio’s MOTORSPORT Series Speakers are for those that are passionate about great sound but also enjoy an outdoor lifestyle. Manufactured for marine, all-terrain, and recreational leisure activities, MOTORSPORT series are designed to provide high far-field audio performance while withstanding the harshest environmental conditions. Utilizing high-tech materials from the aerospace industry and built to meet stringent marine specifications, MOTORSPORT Speakers offer precision craftsmanship and high reliability while delivering that signature Diamond Audio sound quality.



  • 120W RMS
  • Mounting Diameter: 7 inches / 178mm
  • Mounting Depth: 3.01 inches / 76.5mm
  • Over-All Diameter: 8.58" / 218mm

Diamond Audio - 8" Marine Coaxial Speakers with 25mm Titanium Dome Tweeter

  • Speaker Size 8”
    Nominal Diameter (inch/mm) 8" (203mm)
    Description 3-Way
    Nominal Impedance (ohms)
    RMS Power Rating 120W RMS
    Frequency Response 35-23kHz
    Voice Coil Diameter (inch/mm) 1.52" (38.55mm)
    Power Handling (RMS/Peak) 120/500
    Qts 0.78
    Fs-Free Air Resonance (Hz) 58
    Vas (Liter) 0.689 (19.5)
    Xmax - Inch(mm) 0.2" (5mm)
    Over-All Diameter 8.58” (218mm)
    Sensitivity (1W/1M) 92dB
    Sensitivity (2.83V/1M) 95dB
    Mounting Diameter (inch/mm) 7" (178mm)
    Mounting Depth 3.01″ (76.4mm)
    Tweeter 25mm Titanium Dome
    Grille Yes
  • Authorized Internet Dealer for all Diamond Audio Products

bottom of page