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*** Fostex has reduced the price on the special driver. ***
Fostex FE138ES-R 5" Full Range
Limited Edition
- Bio-cellulose based hybrid cone
- UDR tangential surround / spider
- Pure magnesium center cap
- Alnico magnet (approx. 1.5kg)
- Pure iron pole piece
- Zinc alloy die-cast frame
- Silver-Copper alloy voice coil wire
- Swan folded horn design provided with driver (also attached in pdf file)
Specifications:
Impedance 8 ohm
Resonance Frequency 60Hz
Frequency Range Fs to 30kHz
SPL 91.5dB
Qts 0.27
Mms 5g
Sd 82 cm2
Voice coil diameter : 25mm
Re : 6.8ohms
Le : 0.0455mH
Qms : 5.422
Qes : 0.28
Qts : 0.27
BL : 6.5 Telsa/m
Vas : 14 Liters
Xmax : 0.75mm
Eff/n0 : 0.92%
Cms : 1.537m/N
EBP : 214.29
Music power 75W
Magnet weight 1.49kg (3.28 lb)
Overall weight 2.86kg (6.3 lb)
Dimensions:
Flange diameter 154mm
Cut out hole diameter 123mm
Depth 93.5mm
See pdf file for response curve, specifications, mechanical drawing and recommend box drawing.
For vented box; 0.25 cubic feet, 2" vent by 4" long, F3 about 80Hz.
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