Fostex FE 83 NV - Fullrange Chassis

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