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Fostex Speaker Model

Part Number  
4.5” FULL RANGE FF125K    

• 4.5” FULL RANGE
• KENAF paper/ fiber composite cone
• 92db sensitivity
• Frequency response from 72 Hz to 18 kHz
• Flange 117 mm
• Cut-out 103 mm
• Depth 60.1 mm

Znom 8 ohm
Re 7.2 ohm
Le@1kHz - mH
fs 72 Hz
Qms 9.04
Qes 0.27
Qts 0.26
Mms 4.0 g
Cms - mm/N

Sd - cm2
BL - N/A
Vas 9.12 ltrs
Xmax 0.15 mm peak
VC Ø - mm
Sensitivity 1W / 1m 92 dB
Nom. Power 50 W
Net weight 930 g

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