Diamond Audio 6"x9" 2-Way Coaxial Speakers w/Titanium Dome Tweeter (4Ω) - MS69CX
Meet the speaker that refuses to stay in one lane. 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.
The Diamond Audio MS69CX Coax-Sub speakers deliver bold, full-range sound with marine-grade durability—perfect for those who want powerful bass, clear highs, and reliable performance wherever the adventure leads.
Features
• Model: MS69CX (Coax-Sub Design)
• 6"x9" 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
What our Experts Think
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Delivers powerful full-range sound with enhanced mid-bass thanks to its innovative Coax-Sub design.
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1" titanium dome tweeter produces crisp, detailed highs and clear vocals, even at high volume.
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125W RMS power handling makes it an excellent match for aftermarket amplifiers.
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Marine-grade IP65 rating resists water, UV rays, dust, and harsh outdoor conditions.
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Durable Kevlar woofer cone and rubber surround ensure long-lasting performance.
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4Ω impedance offers broad compatibility with most car, motorcycle, UTV, ATV, and marine audio systems.
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A great choice for users who want strong bass, high output, and reliable outdoor durability from a premium 6"x9" coaxial speaker.
Q&A
Q: What makes the Diamond Audio MS69CX different from standard 6x9 speakers?
A: The MS69CX features a unique Coax-Sub design that delivers stronger bass, clear mids, and crisp highs from a single 6x9 speaker, reducing the need for a dedicated subwoofer in many installations.
Q: Are these speakers suitable for motorcycles, boats, and UTVs?
A: Yes. The IP65 marine-grade construction, waterproof Kevlar cone, UV-resistant materials, and rubber surround make them ideal for motorcycles, boats, ATVs, UTVs, and outdoor audio systems.
Q: How much power can the MS69CX handle?
A: Each speaker handles 125W RMS and 500W peak at 4 ohms, making them an excellent match for aftermarket amplifiers.
Q: Do these speakers produce clear high frequencies?
A: Yes. A 1-inch titanium dome tweeter with a built-in 12dB crossover delivers detailed, balanced highs with minimal distortion.
Q: Will these fit standard 6x9 speaker locations?
A: Yes. The MS69CX is designed for standard 6x9 speaker openings, but always verify your vehicle's mounting depth and cutout dimensions before purchasing.
Maintenance Tips
- Clean speaker grilles and cones with a soft, dry microfiber cloth.
- Avoid prolonged exposure to standing water, harsh chemicals, and high-pressure washing.
- Periodically inspect mounting hardware and wiring for a secure, corrosion-free connection.
- Use a compatible 4Ω amplifier with recommended power levels to prevent distortion and speaker damage.
- Keep volume below clipping levels and store vehicles or boats covered when not in use for maximum lifespan.
Damage 
Loss 
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