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4FE30 { 4" - 30 W - 91 dB - 8 Ohm }
Available Impedance: 4 Ohm8 Ohm16 Ohm
Nominal Specifications
Nominal Diameter 100 mm (4 in)
Overall Diameter 100.7 mm (3.96 in)
Bolt Circle Diameter 81.5 mm (3.2 in)
Baffle Cutout Diameter 93.5 mm (3.68 in)
Depth 50 mm (2 in)
Flange and Gasket Thickness 1.5 mm (0.3 in)
Net Weight 260 g (0.6 lb)
Shipping Box
(Single Carton Box - 8 units)
302 x 275 x 186 mm
(11.89 x 10.82 x 7.32 in)
Shipping Weight (8 units) 3.1 Kg (6.83 lb)


Technical Parameters
Nominal Impedance 8 Ohm
Minimum Impedance 7 Ohm
AES Power Handling (1) 30 W
Maximum Power Handling (2) 60 W
Sensitivity (1W/1m) 91 dB
Frequency Range 90÷20000 Hz
Voice Coil Diameter 19 mm (0.75 in)
Winding Material Al
Former Material Kapton
Winding Depth 6.8 mm (0.27 in)
Magnetic Gap Depth 4 mm (0.16 in)
Flux Density 1.4 T
Magnet Neodymium Ring
Basket Material Steel
Demodulation No
Cone Surround (3) Half Roll
NET Air Volume filled by Loudspeaker 0.075 dm^3 (0.003 ft^3)
Spider Profile 1x constant height waves
Thiele and small parameters
Fs 100 Hz
Re 6.5 Ohm
Qes 0.70
Qms 4.9
Qts 0.60
Vas 2 dm^3 (0.07 ft^3)
Sd 48 cm^2 (7.44 in^2)
Xmax (4) 2.73 mm
Xdamage (5) 6.8 mm
Mms 4.2 g
Bl 4.8 N/A
Le 0.18 mH
Mmd 3.9 g
Cms 0.60 mm/N
Rms 0.5 Kg/s
Eta Zero 0.25 %
EBP 143 Hz



Notes:
Packaged and sold in multiples of 8 units
(1) 2 Hours Test According to AES 2-1984 Rev. 2003
(2) Maximum power is defined as 3dB greater than nominal power.
(3) NBR (Rubber)
(4) Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3)
(5) Maximum excursion before permanent damage
Quick acoustic specs
Nominal Impedance 8 Ohm
Minimum Impedance 7 Ohm
AES Power Handling (1) 30 W
Sensitivity (1W/1m) 91 dB
Frequency Range 90÷20000 Hz
Flux Density 1.4 T
Magnet Neodymium Ring
Demodulation No
Fs 100 Hz
Re 6.5 Ohm
Qes 0.70
Qms 4.9
Qts 0.60
Vas 2 dm^3 (0.07 ft^3)
Sd 48 cm^2 (7.44 in^2)
Xmax (2) 2.73 mm
Xdamage (3) 6.8 mm
Mms 4.2 g
Bl 4.8 N/A
Le 0.18 mH
Mmd 3.9 g
Cms 0.60 mm/N
Rms 0.5 Kg/s
Eta Zero 0.25 %
EBP 143 Hz



Note:
Packaged and sold in multiples of 8 units
(1) 2 Hours Test According to AES 2-1984 Rev. 2003
(2) Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3)
(3) Maximum excursion before permanent damage
Quick mechanical specs
Nominal Diameter 100 mm (4 in)
Overall Diameter 100.7 mm (3.96 in)
Bolt Circle Diameter 81.5 mm (3.2 in)
Baffle Cutout Diameter 93.5 mm (3.68 in)
Depth 50 mm (2 in)
Flange and Gasket Thickness 1.5 mm (0.3 in)
Net Weight 260 g (0.6 lb)
Shipping Box
(Single Carton Box - 8 units)
302 x 275 x 186 mm
(11.89 x 10.82 x 7.32 in)
Shipping Weight (8 units) 3.1 Kg (6.83 lb)