Diamond Audio 6"x9" 2-Way Coaxial Speakers w/Titanium Dome Tweeter (4Ω) - MS69CX

Diamond Audio MS69CX — 6"x9" 2-Way Marine Coaxial Speakers with Titanium Dome Tweeter (4Ω)

The Diamond Audio MS69CX is a 6"x9" 2-way coaxial speaker engineered for riders, boaters, and off-road enthusiasts who demand full-range performance in harsh environments. Built to IPx65 marine-grade specifications, the MS69CX combines a UV-treated waterproof Kevlar cone, a 1" titanium dome tweeter, and Diamond Audio's proprietary "Coax-Sub" design to deliver powerful bass extension, clear midrange, and crisp highs — all from a single speaker.

With a frequency response of 46Hz–20kHz and 125W RMS / 500W MAX power handling, the MS69CX eliminates the need for a dedicated subwoofer in many marine and powersports applications. A 12dB Bessel crossover network ensures smooth frequency transitions, while the T-yoke back plate motor design improves cooling by 35% for sustained high-power performance and long-term reliability.

Key Features

• IPx65 marine-grade construction — waterproof, UV-resistant, salt-resistant
• "Coax-Sub" design for enhanced low-frequency output without a dedicated subwoofer
• 1" high-output titanium dome tweeter for crisp, detailed highs
• UV-treated waterproof Kevlar cone with rubber surround for durability and tight bass
• 12dB Bessel crossover network for smooth, natural frequency transition
• Super high-energy ferrite motor with milled aluminum top plate for efficiency
• T-yoke back plate design improves motor cooling by 35%
• Cast aluminum basket for strength and vibration resistance
• Compatible with boats, ATVs, UTVs, motorcycles, and outdoor audio systems

Specifications

• Power Handling: 125W RMS / 500W MAX
• Impedance: 4Ω
• Frequency Response: 46Hz – 20kHz
• Sensitivity (1W/1M): 87.4dB
• Sensitivity (2.83V/1M): 91.1dB
• Voice Coil: 1.66" (42.2mm)
• Fs (Free Air Resonance): 46Hz
• Qts: 0.57
• Vas: 0.829 ft³ (23.5L)
• Xmax: 0.315" (8mm)
• Mounting Depth: 3.81" (97mm)
• Mounting Diameter: 5.98" x 8.85" (152mm x 225mm)