Diamond Audio MS69CX 6" x 9" Motorsport Series (500W Max / 125W RMS) 2-way Coaxial Speakers w/Titanium Dome Tweeter (4Ω)

Diamond Audio MS69CX

The Diamond Audio MS69CX 6"x9" 2-way coaxial Coax-Sub speakers blend midrange clarity, crisp highs, and surprising low-end authority into one rugged, marine-ready package. Designed for boats, ATVs, UTVs, motorcycles, and outdoor audio systems, these speakers deliver powerful, full-range performance in environments where ordinary speakers tap out.

Engineered to IPX65 marine-grade specifications, the MS69CX is built to withstand water, salt, UV exposure, and extreme conditions. The UV-treated waterproof Kevlar cone with rubber surround ensures durability and tight, responsive bass, while maintaining excellent midrange accuracy for vocals and instruments.

At the top end, a 1" high-output titanium dome tweeter delivers crisp, detailed highs that cut through wind and ambient noise with precision. The integrated 12dB Bessel crossover network ensures smooth frequency transition, creating a balanced and natural soundstage across the full spectrum.

What sets the MS69CX apart is its “Coax-Sub” design, combining the output of a coaxial speaker with enhanced low-frequency capability. With a frequency response of 46Hz–20kHz and 125W RMS / 500W MAX power handling, these 6x9 marine speakers provide rich bass extension without the need for a dedicated subwoofer in many applications.

The super high-energy ferrite motor system and milled aluminum top plate enhance efficiency and control, while the T-yoke back plate design improves cooling by 35%, allowing for higher power handling and long-term reliability. A cast aluminum basket adds strength and vibration resistance for demanding environments.

Features :

• MS69CX (Coax-Sub Design)
• 6" x 9" 2-way Marine Coaxial Speakers (4Ω)
• 125W RMS / 500W Max Power Handling
• 1" Titanium Dome Tweeter for Crisp Highs
• Kevlar Waterproof Cone with Rubber Surround
• IPX65 Marine-Grade Compliant Construction
• Enhanced Low-frequency "Coax-Sub" Performance
• Advanced Cooling Motor Structure for Durability
• Fully Waterproof Cone and Surround for Marine Environments

Specifications :

• 6" x 9" Motorsport Series 2-way Coaxial Marine Speakers
• Power Handling:
  • Peak Power : 500 Watt
  • RMS Power : 125 Watt
• Nominal Impedance : 4Ω
• Frequency Response : 46Hz - 20KHz
• Voice Coil : 1.66" (42.2mm)
• Free-Air Resonance (Fs) : 46Hz
• Total Speaker Q Value (Qts) : 0.57
• Equivalent Compliance (Vas) : 23.5Liters
• Sensitivity (1W/1M) : 87.4dB
• Sensitivity ( 2.83V/1M) : 91.1dB
• Xmax (mm) : 0.315" (8mm)
• Mounting Depth : 3.81" (97mm)
• Mounting Diameter : 5.98" x 8.85" (152mm x 225mm)