Diamond Audio 6.5" 2-Way High Output Marine Speaker (4Ω) - HXM65F4BK

Diamond Audio HXM65F4BK — 6.5" HXMFB Series 2-Way High Output Marine Coaxial Speaker (4Ω)

The Diamond Audio HXM65F4BK is the 4Ω variant of the HXMFB Black Series — the latest evolution of the legendary HXM and HXMF coaxial platforms. Built for marine and motorsports applications that demand higher output, deeper bass response, and more extended high-frequency performance, the HXM65F4BK combines a carbon fiber cone, a neodymium motor structure, and an oversized 1.5" titanium dome tweeter into a waterproof, fiber-reinforced composite basket — delivering 150W RMS with 95dB sensitivity in a compact 2.52" mounting depth.

Available in both 2Ω and 4Ω configurations to optimize system design, the HXMFB series is engineered for Harley Davidson motorcycles, boats, UTVs, and custom marine builds where class-leading output and durability are non-negotiable.

Key Features

• HXMFB Black Series — evolved from the HXM and HXMF platforms with higher output and improved bass response
• Carbon fiber cone for lightweight rigidity and accurate midrange reproduction
• Oversized 1.5" titanium dome tweeter for extended, detailed high-frequency performance
• Neodymium motor structure for high efficiency and compact form factor
• Fiber-reinforced composite basket for waterproof durability in marine and outdoor environments
• 2" voice coil for high power handling and heat dissipation
• 95dB sensitivity — efficient output from motorcycle and marine amplifiers
• 4Ω impedance — compatible with standard motorcycle and marine amplifiers
• Compact 2.52" mounting depth for tight fairing and marine installs

Specifications

Power & Sensitivity

• Power Handling: 150W RMS / 450W MAX
• Sensitivity (1W/1M): 95dB
• Impedance: 4Ω
• Voice Coil Diameter: 2"

Thiele/Small Parameters

• Re (Ω): 1.8
• Qms: 7.506
• Qes: 0.369
• Qts: 0.352
• Fs (Hz): 105
• Vas (L): 6.172
• Cms (mm/N): 0.288
• Mms (g): 8.024
• Sd (m²): 122.718
• BL (T*M): 5.068
• Xmax (mm): 2.75

Dimensions

• Mounting Depth: 2.52" (64mm)
• Cutout Diameter: 5.44" (138.06mm)
• Overall Diameter: 6.61" (167.79mm)
• Overall Height: 3.03" (77.02mm)

Construction

• Cone Material: Carbon Fiber
• Tweeter Diaphragm: Titanium (1.5")
• Basket Material: Fiberglass Reinforced Polymer
• Magnet Type: Neodymium
• Surround Material: Rubber
• Speaker Type: Horn-Loaded Coaxial