- Article number
- ND91-4
- EAN
- 0844632090448
- Woofer Series
- Dayton Audio ND series
- Woofer Type
- Full-Range
- Nominal Diameter
- 3.50"
- Power Handling (RMS)
- 30 watts
- Power Handling (max)
- 60 watts
- Impedance (Z)
- 4 ohms
- Sensitivity (SPL at 1m / 2.83V)
- 85.6 dB
- Frequency Response
- 65 - 17,000 Hz
- Voice Coil Diameter
- 25 mm
- DC Resistance (Re)
- 4.3 ohms
- Voice Coil Inductance (Le)
- 0.83 mH @ 1 kHz
- Resonant Frequency (Fs)
- 74 Hz
- Mechanical Q (Qms)
- 4.24
- Electromagnetic Q (Qes)
- 0.45
- Total Q (Qts)
- 0.41
- Diaphragm Mass Inc. Airload (Mms)
- 4.8g
- Mechanical Compliance of Suspension (Cms)
- 0.96 mm/N
- Surface Area of Cone (Sd)
- 30.4 cm²
- Volume of Displacement (Vd)
- 12.2 cm³
- BL Product (BL)
- 4.59 Tm
- Compliance Equivalent Volume (Vas)
- 1.4 liters
- Maximum Linear Excursion (Xmax)
- 4.6 mm
- Cone / Diaphragm Material
- Aluminum Cone
- Surround Material
- Rubber
- Voice Coil Wire Material
- Aluminum
- Voice Coil Former
- Kapton® / Polyimide
- Basket / Frame Material
- Steel
- Magnet Material
- Ferrite
- Shielded
- Yes
- Overall Outside Diameter
- 103.5 mm
- Overall Depth
- 63.4 mm
- Baffle Cutout Diameter
- 85 mm
- # Mounting Holes
- 4
- Sealed Volume
- 0.01 ft.³
- Sealed F3
- 132 Hz
- Vented Volume
- 0.03 ft.³
- Vented F3
- 73 Hz