CFC180-4 6-1/2" Carbon Fiber Woofer 4 Ohm

Key Specs:

• Nominal Diameter: 6-1/2"
• Power Handling (RMS): 40 Watts
• Power Handling (MAX): 80 Watts
• Impedance: 4Ω
• Frequency Response: 50 – 5,000 Hz
• Fs: 52 Hz
• Qts: 0.43
• Vas: 0.41 ft³
• Sensitivity: 90.6 dB 2.83V/1m
• Voice Coil Diameter: 1"
• Maximum Linear Excursion: ±4 mm

Lightweight Carbon Fiber with Efficient Cooling

The Dayton Audio CFC180-4's woven carbon fiber cone provides a stiff, lightweight diaphragm that resists unwanted flexing. This helps preserve detail throughout the woofer’s operating range while providing the strength needed for low-frequency reproduction. Its distinctive woven finish also gives the driver a premium appearance that stands out well beyond its affordable price.

A 25 mm 4-layer voice coil wound on an aluminum former handles up to 40 watts RMS. The raised pole piece creates a more symmetrical magnetic field around the voice coil, helping maintain consistent motor force throughout its travel. A vented pole piece increases airflow through the motor for improved cooling and reduced power compression during extended use.

Detailed Response for Easy 2-Way Integration

With 4 mm of Xmax and response extending down to 50 Hz, the CFC180-4 provides useful bass capability for compact speaker systems. A low-loss rubber surround and large-diameter flat spider provide stable suspension and smooth cone travel. The poly dust cap adds damping to help control unwanted resonances.

Its 50 to 5,000 Hz frequency response makes the CFC180-4 a great choice for compact 2-way speaker designs. The stamped steel frame features a low-profile mounting flange suitable for either flush or surface mounting, providing flexibility for a wide variety of enclosure designs. Its 4Ω impedance also makes it well suited for home, portable, and custom audio applications.