Diamond Audio MS69CX 6x9" Motorsport 2-Way Coax-Sub Speakers w/ Titanium Dome Tweeter (Pair)

The Diamond Audio MS69CX is a first-of-its-kind Motorsport Series "Coax-Sub" — a 6x9" that combines the best of a speaker and a subwoofer in one, delivering high output with real low-end extension. Built to take abuse across marine, motorcycle, and powersports applications, it's a competition-grade choice for baggers, boats, and side-by-sides.

Why we recommend them

Diamond drew on decades of driver design to create the Coax-Sub, pairing a deep-drawn basket and heat-shedding voice coil with a 1" high-output titanium dome tweeter. The result is high sensitivity plus tremendous low-end from a single 6x9 — the kind of full-range punch that usually takes a separate sub. It's built to IPx65 marine-grade specs with a UV-treated, thermal-molded waterproof Kevlar cone and rubber surround, and the T-yoke back plate is drilled for 35% more cooling and higher power handling.

Fitment & install notes

Sold as a pair. 4-ohm. Mounting depth 3.82", 5.984" x 8.858" cutout. 12dB Bessel crossover network. Great for factory 6x9 locations that need real low-end without a separate sub. Pair with a strong amp to feed them.

Features & Specifications

• 6x9" 2-way Motorsport Coax-Sub marine speakers (sold as a pair)
• Power: 120W RMS / 240W max
• Impedance: 4-ohm
• 1" high-output titanium dome tweeter
• IPx65 marine-grade, UV-treated waterproof Kevlar cone, rubber surround
• High-energy ferrite motor, milled aluminum top plate, cast aluminum basket
• T-yoke back plate drilled for 35% more cooling, 12dB Bessel crossover
• Mounting depth 3.82", cutout 5.984" x 8.858"
• Great for baggers, boats, side-by-sides, and powersports