- Article number
- ND105-4
- Woofer Series
- ND Series
- Woofer Type
- Midwoofer
- Nominal Diameter
- 4"
- Power Handling (RMS)
- 30 watts
- Power Handling (max)
- 60 watts
- Impedance
- 4 ohms
- Sensitivity
- 86.8 dB @ 2.83V/1m
- Frequency Response
- 60 - 10,000 Hz
- Voice Coil Diameter
- 25 mm
- DC Resistance (Re)
- 3.7 ohms
- Voice Coil Inductance (Le)
- 0.76 mH @ 1 kHz
- Resonant Frequency (Fs)
- 78.7 Hz
- Mechanical Q (Qms)
- 7.42
- Electromagnetic Q (Qes)
- 0.66
- Total Q (Qts)
- 0.61
- Diaphragm Mass Inc. Airload (Mms)
- 7.4g
- Mechanical Compliance of Suspension (Cms)
- 0.55 mm/N
- Surface Area of Cone (Sd)
- 51.5 cm²
- Volume of Displacement (Vd)
- 20.6 cm³
- BL Product (BL)
- 4.52 Tm
- Compliance Equivalent Volume (Vas)
- 1.97 liters
- Maximum Linear Excursion (Xmax)
- 4.0 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
- 105 mm
- Overall Depth
- 67 mm
- Baffle Cutout Diameter
- 93 mm
- # Mounting Holes
- 4
- Sealed Volume
- 0.1 ft.³
- Sealed F3
- 84 Hz
- Vented Volume
- 0.3 ft.³
- Vented F3
- 41 Hz
