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REDCATT 31NFR 3″ Full-range woofer 8 ohms
€17.95
The REDCATT 31NFR is a compact 3.0″ full-range woofer with an anodized aluminum cone, neodymium motor, 8 ohm impedance and extended frequency response for hi-fi, column, outdoor and portable audio designs.
Available on backorder
Highlights of the REDCATT 31NFR
- 3.0″ full-range driver with extended frequency response
- Hard anodized aluminum cone with NBR single-roll surround
- Neodymium magnetic circuit with copper demodulation cup
- 30 W AES power handling, 60 W continuous and 120 W peak
- 84.49 dB sensitivity with 8 ohm nominal impedance
- Suitable for hi-fi, column, outdoor and portable products
Product details REDCATT 31NFR
REDCATT 31NFR 3.0″ Full-Range Woofer 8 Ohm
The REDCATT 31NFR is designed as a high-efficiency full-range woofer for compact systems that need broad bandwidth from a small driver. Its lightweight hard anodized aluminum cone and NBR single-roll surround help deliver extended high-frequency response, stable output and low harmonic distortion across its working range.
A neodymium magnetic circuit keeps the motor compact while maintaining a strong, stable flux gap. REDCATT’s motor design is optimized to reduce flux modulation, and a copper demodulation cup over the T-pole further supports low-distortion performance. This makes the 31NFR a practical choice for space-conscious woofer applications where clarity and consistency matter.
With 30 W AES power handling, 60 W continuous power and 120 W peak capability, the 31NFR offers useful output for its size. Key parameters include a 115 Hz resonant frequency, 84.49 dB sensitivity, 6.30 ohm DC resistance, 0.880 Qts and 0.85 liter Vas, giving designers a clear basis for compact loudspeaker development.
The 31NFR fits hi-fi columns, outdoor and portable products, multi-way systems and other compact speakers. Installation dimensions include a 71.5 mm baffle cutout, 45.3 mm mounting depth from flange to rear and four mounting holes, while the recommended sealed alignment is a very compact 0.05 liter enclosure with Qtc options of 0.85, 0.707 or 0.6.
Specifications
| Article number | 31NFR |
| EAN | 9507533114927 |
| Woofer Type | Full-Range |
| Nominal Diameter | 3" | 80 mm |
| Power Handling (RMS) | 30 Watt |
| Power Handling (max) | 120 Watt |
| Continuous Program Power | 120 Watt |
| Impedance (Z) | 8 Ω |
| Sensitivity (SPL at 1m / 2.83V) | 84.49 dB |
| Voice Coil Diameter | 25.4 mm |
| DC Resistance (Re) | 6.3 Ω |
| Voice Coil Inductance (Le) | 0.09 mH |
| Resonant Frequency (Fs) | 115 Hz |
| Mechanical Q (Qms) | 1.51 |
| Electromagnetic Q (Qes) | 0.94 |
| Total Q (Qts) | 0.88 |
| Diaphragm Mass Inc. Airload (Mms) | 2.5 g |
| Mechanical Compliance of Suspension (Cms) | 7.7 mm/N |
| Surface Area of Cone (Sd) | 28.3 cm² |
| BL Product (BL) | 3.5 Tm |
| Compliance Equivalent Volume (Vas) | 8.5 L |
| Maximum Linear Excursion (Xmax) | 1.7 mm |
| Driver's Mechanical Losses (Rms) | 0.12 kg/s |
| Cone / Diaphragm Material | Aluminum |
| Surround Material | Rubber |
| Voice Coil Former | Kapton |
| Basket / Frame Material | Plastic |
| Magnet Material | Neodymium |
| Overall Outside Diameter | 78.7 mm |
| Overall Depth | 453 mm |
| Baffle Cutout Diameter | 715 mm |
| Bolt Circle Diameter | 84 mm |
| # Mounting Holes | 4 |
| Article number | 31NFR |
| EAN | 9507533114927 |
| Woofer Type | Full-Range |
|---|---|
| Nominal Diameter | 3″ | 80 mm |
| Power Handling (RMS) | 30 Watt |
| Power Handling (max) | 120 Watt |
| Continuous Program Power | 120 Watt |
| Impedance (Z) | 8 Ω |
| Sensitivity (SPL at 1m / 2.83V) | 84.49 dB |
| Voice Coil Diameter | 25.4 mm |
| DC Resistance (Re) | 6.3 Ω |
| Voice Coil Inductance (Le) | 0.09 mH |
| Resonant Frequency (Fs) | 115 Hz |
| Mechanical Q (Qms) | 1.51 |
| Electromagnetic Q (Qes) | 0.94 |
| Total Q (Qts) | 0.88 |
| Diaphragm Mass Inc. Airload (Mms) | 2.5 g |
| Mechanical Compliance of Suspension (Cms) | 7.7 mm/N |
| Surface Area of Cone (Sd) | 28.3 cm² |
| BL Product (BL) | 3.5 Tm |
| Compliance Equivalent Volume (Vas) | 8.5 L |
| Maximum Linear Excursion (Xmax) | 1.7 mm |
| Driver's Mechanical Losses (Rms) | 0.12 kg/s |
| Cone / Diaphragm Material | Aluminum |
| Surround Material | Rubber |
| Voice Coil Former | Kapton |
| Basket / Frame Material | Plastic |
| Magnet Material | Neodymium |
| Overall Outside Diameter | 78.7 mm |
| Overall Depth | 453 mm |
| Baffle Cutout Diameter | 715 mm |
| Bolt Circle Diameter | 84 mm |
| # Mounting Holes | 4 |
