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CFC150-4 5-1/4" Carbon Fiber Woofer 4 Ohm
Quick Overview
The Dayton Audio CFC150-4 combines high sensitivity, useful excursion, and premium cone construction in an affordable 5-1/4" 4Ω woofer. Its woven carbon fiber cone, 3.5 mm Xmax, and detailed response provide a solid foundation for compact 2-way systems, while the raised and vented pole piece improves magnetic symmetry and voice coil cooling. With 89 dB sensitivity, 40 watts RMS power handling, and response from 50 to 7,000 Hz, the CFC150-4 offers an impressive combination of bandwidth, output capability, and value.Product Highlights
- Woven carbon fiber cone combines low mass and excellent rigidity for clean, detailed sound
- Raised pole piece creates a more symmetrical magnetic field for controlled displacement
- 3.5 mm Xmax provides impressive low-frequency capability from a compact 5-1/4" woofer
- Vented pole piece improves voice coil cooling to help reduce power compression
- 89 dB sensitivity and 50 to 7,000 Hz response make it an excellent choice for compact 2-way designs
Product Manuals / Spec Sheets / Downloads
Dayton Audio CFC150-4 Specification SheetBuying Options
Step up your next compact speaker project with the Dayton Audio CFC150-4. This 5-1/4" 4Ω woofer combines a woven carbon fiber cone with a refined motor and suspension system to deliver strong output, clear midrange, and solid low-frequency performance from a space-conscious design. With premium materials, versatile mounting, and an affordable price, it’s a great fit for compact 2-way speakers, custom builds, and value-focused DIY projects.
Key Specs:
- Nominal Diameter: 5-1/4"
- Power Handling (RMS): 40 Watts
- Power Handling (MAX): 80 Watts
- Impedance: 4Ω
- Frequency Response: 50 – 7,000 Hz
- Fs: 77 Hz
- Qts: 0.70
- Vas: 0.148 ft³
- Sensitivity: 89.0 dB 2.83V/1m
- Voice Coil Diameter: 1"
- Maximum Linear Excursion: ±3.5 mm
Lightweight Carbon Fiber with Efficient Cooling
The Dayton Audio CFC150-4's woven carbon fiber cone provides a stiff, lightweight diaphragm that resists unwanted flexing. This helps preserve detail throughout the woofer’s operating range. Its distinctive woven finish also gives this compact woofer a premium appearance that stands out well beyond its price.
A 25 mm 2-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.
Smooth Excursion with Versatile Mounting Options
With 3.5 mm of Xmax and extension down to 50 Hz, the CFC150-4 provides useful bass capability for its size. 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 response extending to 7,000 Hz gives designers plenty of flexibility when pairing the CFC150-4 with a tweeter in a compact 2-way system. The stamped steel frame features a low-profile mounting flange suitable for either flush or surface mounting. Its 4Ω impedance also makes it well suited for a variety of home, portable, and custom audio applications.
Premium Performance for Budget-Conscious Builds
At 89 dB sensitivity, the 5-1/4" CFC150-4 can produce satisfying output without requiring excessive amplifier power. Carbon fiber construction, thoughtful motor features, and versatile mounting make it an appealing choice for space-conscious speaker projects. Its affordable price makes those features accessible to budget-conscious builders.
| Speaker Series | Carbon Fiber |
| Model Number | CFC150-4 |
| Color | Black |
| Unit of Measure | Each |
| UPC | 848791012266 |
| Warranty - Parts | 5 Years |
| Warranty - Labor | 5 Years |
| Weight | -- lbs. |
| Speaker Type | Woofer |
| Nominal Diameter | 5-1/4" |
| Power Handling (RMS) | 40 watts |
| Power Handling (max) | 80 watts |
| Impedance | 4 ohms |
| Sensitivity | 89.0 dB @ 2.83V/1m |
| Frequency Response | 50-7,000 Hz |
| Voice Coil Diameter | 25 mm |
| DC Resistance (Re) | 3.6 ohms |
| Voice Coil Inductance (Le) | 0.35 mH @ 1 kHz |
| Resonant Frequency (Fs) | 77 Hz |
| Mechanical Q (Qms) | 4.13 |
| Electromagnetic Q (Qes) | 0.84 |
| Total Q (Qts) | 0.70 |
| Diaphragm Mass Inc. Airload (Mms) | 10.5g |
| Surface Area Of Cone (Sd) | 85.1 cm² |
| BL Product (BL) | 4.7 Tm |
| Compliance Equivalent Volume (Vas) | 4.18 liters |
| Maximum Linear Excursion (Xmax) | 3.5 mm |
| Cone / Diaphragm Material | Carbon Fiber |
| Surround Material | Rubber |
| Basket/Frame Material | Stamped Steel |
| Magnet Material | Ferrite |
| Overall Outside Diameter | 148 mm |
| Overall Depth | 68 mm |
| Baffle Cutout Diameter | 120.2 mm |
| # Mounting Holes | 4 |