- Article number
- SPX-31M
- EAN
- 4007754221329
- Woofer Type
- Full-Range
- Nominal Diameter
- 3''
- Power Handling (RMS)
- 20 Watts
- Power Handling (max)
- 40 Watts
- Impedance (Z)
- 8 Ohms
- Sensitivity (SPL at 1m / 2.83V)
- 86 dB
- Frequency Response
- 100-22,000Hz
- Voice Coil Diameter
- 20 mm
- Magnet Weight
- 119 g
- DC Resistance (Re)
- 6.4 Ohms
- Voice Coil Inductance (Le)
- 0.18 mH
- Resonant Frequency (Fs)
- 110 Hz
- Mechanical Q (Qms)
- 3.707
- Electromagnetic Q (Qes)
- 0.69
- Total Q (Qts)
- 0.58
- Diaphragm Mass Inc. Airload (Mms)
- 1.9 g
- Mechanical Compliance of Suspension (Cms)
- 0.92 mm/N
- Surface Area of Cone (Sd)
- 32 cm2
- BL Product (BL)
- 3.64 Tm
- Compliance Equivalent Volume (Vas)
- 1.3 l
- Maximum Linear Excursion (Xmax)
- 1.1 mm
- Cone / Diaphragm Material
- Paper
- Surround Material
- Rubber
- Voice Coil Wire Material
- Copper
- Voice Coil Former
- Kapton
- Basket / Frame Material
- Stamped steel
- Magnet Material
- Ferrite
- Shielded
- Yes
- Overall Outside Diameter
- 93 mm
- Overall Depth
- 55 mm
- Baffle Cutout Diameter
- 71 mm
- # Mounting Holes
- 4
- Mounting Hole Diameter
- 4.3 mm