Fostex FW 168 HR - Paper

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RRP 485,00 €

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Key features:
  • ø145mm large ferrite magnet and 8mm top plate are employed. Besides, the copper cap is adapted onto the pole piece to reduce the magnetostriction.
  • HR shape cone diaphragm is employed to realize the weight saving and stiffness property.
  • The state-of-the-art hybrid material is offered to the diaphragm. Its ideal internal loss and stiffness bring the propagation velocity similar to the near-metal diaphragm.
  • UDR tangential surround & spider are equipped to realize the less anti-resonance and superior amplitude characteristic.
  • The foamed rubber is chosen for the surround material. It has the lower density, lighter weight and higher internal loss characteristic than the conventional rubber and the foamed rubber surround has the low youngs modulus and less eigentone.

Short data

Usage as Bass-Midrange
Power Handling 35 Watt
Impedance 8 Ohm
Frequency from 45 Hz
Max. Frequency 10 kHz
Sound pressure 88 dB


Overall dimensions 190 mm
Baffle cutout 145 mm
Depth (Total) 97 mm
Frame Material Aluminium diecast
Membrane Type HR
Membrane Surround foamed rubber
Voice coil Ø 35 mm
Magnet Ø 145 mm
Magnet-height 36 mm
Magnet-weight 1090 g


Resonance fs fs: 40 Hz
Mechanical Q Qms: 3.25
Electrical Q Qes: 0.38
Total Q Qts: 0.35
Equivalent Air-Volumen Vas: 15.1 Liter
DC-Resistance Re: 7.1 Ohm
Coil Inductance Le: 0.07 mH
Mech. Compliance Cms: 0.83 mm/N
Moving Mass Mms: 15.7 g
Max. Excursion +/- Xmax: 2.65 mm
BL Product Bl: 8.98 N/A
Membrane Area Sd: 110 cm²
Sound pressure dB: 88 SPL
Efficiency Nref: 0.33 %

Freuqency & Impedance

Technical Dimensions

PDF-Product information

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