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4" 20 WT WOOFER
- 4 Ohm
- Program Power : 40 W
- Voice Coil Diameter : 19.1 mm
- Response : 231-13K Hz
- Sensitivity (1W/1m) : 86 db
Specification
Nominal Diameter
102 mm
Nominal Impedance
4 Ω
Nominal Power Handling (AES)
20 w
Program Power (AES)
40 w
Sensitivity (1W/1m)
86 db
Frequency Range
231-13K Hz
Magnet Material
Ferrite
Voice Coil Dia
19.10 mm
Winding Material
COPPER
Former Material
SV COATED KRAFT
Winding Type
Outside
T/S Parameters
Resonant Frequency (Fs)
231 Hz
DC Resistance (Re)
3.5 Ω
Electrical Q (Qes)
4.04
Mechanical Q (Qms)
3.46
Total Q (Qts)
1.86
Compliance Equivalent Volume (Vas)
0.74Ltrs
Peak Diaphragm Displacement Volume (Vd)
0.009 Ltrs
Effective Surface Area of Cone (Sd)
54 cm^2
Reference Efficiency (no)
0.22%
Moving Mass including air load (Mms)
2.63 gms
Motor Strength (BL)
1.82 T-m
Voice Coil Inductance @ 1 KHz (Le)
0.12 mH
Efficiency Bandwith Product (EBP)
57 Hz
Voice Coil Overhang (Xmax)
±1.70 mm
Mounting Info
Overall Diameter
102 mm
Depth
41 mm
Baffle Cutout Diameter
93 mm
Flange and Gasket Thickness
8 mm
Recone Kit
Recone Kit Number
REC4INCH20W
