- Article number
- ND65-4
- Woofer Series
- ND Series
- Woofer Type
- Full-Range
- Nominal Diameter
- 2.50"
- Power Handling (RMS)
- 15 watts
- Power Handling (max)
- 30 watts
- Impedance (Z)
- 4 ohms
- Sensitivity
- 83 dB @ 2.83V/1m
- Frequency Response
- 85 - 20,000 Hz
- Voice Coil Diameter
- 19 mm
- DC Resistance (Re)
- 3.5 ohms
- Voice Coil Inductance (Le)
- 0.44 mH @1 kHz
- Resonant Frequency (Fs)
- 89.5 Hz
- Mechanical Q (Qms)
- 5.56
- Electromagnetic Q (Qes)
- 0.68
- Total Q (Qts)
- 0.61
- Diaphragm Mass Inc. Airload (Mms)
- 2.5g
- Mechanical Compliance of Suspension (Cms)
- 1.26 mm/N
- Surface Area of Cone (Sd)
- 15.6 cm²
- Volume of Displacement (Vd)
- 5.4 cm³
- BL Product (BL)
- 2.68 Tm
- Compliance Equivalent Volume (Vas)
- 0.53 liters
- Maximum Linear Excursion (Xmax)
- 3.5 mm
- Cone / Diaphragm Material
- Black Anodized Aluminum Cone
- Surround Material
- Rubber
- Voice Coil Wire Material
- Copper
- Voice Coil Former
- Kapton® / Polyimide
- Basket / Frame Material
- Steel
- Magnet Material
- Neodymium
- Shielded
- Yes
- Overall Outside Diameter
- 64 mm
- Overall Depth
- 48 mm
- Baffle Cutout Diameter
- 52 mm
- # Mounting Holes
- 4
- Sealed Volume
- 0.05 ft.³
- Sealed F3
- 102 Hz
- Vented Volume
- 0.08 ft.³
- Vented F3
- 53 Hz
