Fostex FE 83 NV - Fullrange Chassis buy at hifisound.de

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Fostex FE 83 NV - Fullrange Chassis

The cone paper of the NV models is made from a novel kenaf fiber blend. The mixture of long and short fibers made of non-wood pulp, with the addition of chemical fibers and mineral ores, provides increased rigidity and improved propagation speed.

Eliminating the metallic eyelets, which cause balance imbalance and result in non-uniform resonance distribution across the annular vibrations of the cone-shaped diaphragm, has reduced the undesirable harmonic distortion in the midrange.
The proven three-point bonding, in which the voice coil, the damper and the diaphragm are brought together in a ring, allows a direct power transmission.

The gold-plated Faston 205 connection terminal promises lossless signal transmission.

Features und technical Data
Electrical Parameters

Nominal Impedance: 8Ω
Re: 7.1Ω
Le: 0.1mH
fs (F0): 149.7Hz

Mechanical Parameters

Mms (M0): 1.4g
Cms: 0.8mm/N
Bl: 3.2N/A
Loss Factors
Qms: 4.21
Qes: 0.96
Qts (Q0): 0.78

Other Parameters

SPL (1m/1W): 87.5dB
Equivalent Diaphragm Radius (a): 30.0mm
Rated Input: 5W
Max Input: 15W
Overall Diameter: ø 83mm
Voice Coil Diameter: 16mm
Reproduction Frequency Response: fs to 22kHz
Vas: 0.9L
Baffle Hole Diameter: ø 73mm
Weight: 371g

Short data

Usage as	Fullrange
Power Handling	15 Watt
Impedance	8 Ohm

Frequency from	150 Hz
Max. Frequency	22 kHz

Chassis-data

Overall dimensions	83 mm
Baffle cutout	70 mm
Depth (Total)	46 mm
Front material	Fibreglass
Frame Material	Steel plate
Membrane Type	Cone
Membrane Surround	Rubber
Membrane Material	Fibreglass
Dustcap Material	Fibreglass

Voice coil Ø	16 mm
Magnet Ø	60 mm

Thiele-Small-Parameter

Resonance fs	fs: 149.7 Hz
Mechanical Q	Qms: 4.21
Electrical Q	Qes: 0.96
Total Q	Qts: 0.78
Equivalent Air-Volumen	Vas: 0.9 Liter
DC-Resistance	Re: 7.1 Ohm
Coil Inductance	Le: 0.1 mH

Mech. Compliance	Cms: 0.8 mm/N
Moving Mass	Mms: 1.4 g
BL Product	Bl: 3.2 N/A
Membrane Ø	Md: 70
Membrane Area	Sd: 30 cm²
Sound pressure	dB: 87.5 SPL

Frequency

Technical Dimensions

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