- Article number
- ND140-8
- Woofer Series
- ND Series
- Woofer Type
- Midwoofer
- Nominal Diameter
- 5.25"
- Power Handling (RMS)
- 40 watts
- Power Handling (max)
- 80 watts
- Impedance
- 8 ohm
- Sensitivity
- 84.5 dB @ 2.83V/1m
- Frequency Response
- 54 - 8,000 Hz
- Voice Coil Diameter
- 25 mm
- DC Resistance (Re)
- 7.8 ohms
- Voice Coil Inductance (Le)
- 1.44 mH @ 1 kHz
- Resonant Frequency (Fs)
- 56.5 Hz
- Mechanical Q (Qms)
- 5.01
- Electromagnetic Q (Qes)
- 0.79
- Total Q (Qts)
- 0.68
- Diaphragm Mass Inc. Airload (Mms)
- 10.4g
- Mechanical Compliance of Suspension (Cms)
- 0.76 mm/N
- Surface Area of Cone (Sd)
- 86.6 cm²
- Volume of Displacement (Vd)
- 34.6 cm³
- BL Product (BL)
- 6.05 Tm
- Compliance Equivalent Volume (Vas)
- 7.74 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
- 138 mm
- Overall Depth
- 70.5 mm
- Baffle Cutout Diameter
- 120 mm
- # Mounting Holes
- 4
- Sealed Volume
- 0.36 ft.³
- Sealed F3
- 75 Hz
- Vented Volume
- 0.84 ft.³
- Vented F3
- 37 Hz
