Speaker Unit Details
FOSTEX FE83NV
8cm Full Range Unit¥5,720(tax included)/1pc
Steel frame
This speaker unit, the "FE83NV", is an 8cm Full Range Unit Released in July 2019 under the FOSTEX brand as a regular model, priced at ¥5,720(tax included)/1pc. Its main specifications include an Impedance of 8ohm, a Sound Pressure Level (sensitivity) of 87.5dB/W (1m), and a rated power handling of 5W, with a maximum power capacity of up to 15W.
To provide reference values for enclosure design, the Lowest Resonance Frequency (fs, f0) is 149.7Hz, and the Reproduction Frequency Response range is ensured from fs to 22k Hz. Designed as a component for back-loaded horn enclosures, an Mms (m0) of 1.4g, and a Vas of 0.9L. The manufacturer-recommended enclosure type is a Back-loaded Horn.
The frame is made of Steel frame, the required baffle hole diameter is Φ73mm, it requires 4 mounting holes, 0the total net weight is 371g, the overall diameter of the unit is 83mm, and the depth is 46.4mm.
The FOSTEX FE-NV series continues the tradition of FOSTEX's full-range regular units. It offers bright and clear sound, with added transparency and crispness in the NV iteration. Available in a wide range of sizes from 8cm to 20cm, the series features a newly developed cone made primarily from ultra-refined kenaf, combined with chemical fibers and minerals to enhance propagation speed and rigidity. The series eliminates eyelets across all sizes to reduce harmonic distortion in the midrange. Additionally, its design aesthetics have been updated.
Thiele&Small Parameters | Voice Coil Parameters | Mechanical Parameters |
---|---|---|
fs (f0): 149.7 Hz Qms: 4.21 Qes: 0.96 Qts (Q0): 0.78 | Z: 8 ohm Re: 7.1 ohm Le: 0.1 mH VC Diameter: 16 mm | Mms (m0): 1.4 g Cms: 0.8 mm/N Diaphragm R (a): 30 mm Bl: 3.2 N/A |
Enclosure Parameters | Other Parameters |
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SPL: 87.5 dB/W (1m) Vas: 0.9 L Baffle Hole Diameter: Φ73 mm Depth: 46.4 mm Frequency Response: fs to 22k Hz Recommended Enclosure: Back-loaded Horn | Nom.: 5 W Mus.: 15 W Overall Diameter: 83 mm 0Net Weight: 371 g Limited Edition: No |