Speaker Unit Details
FOSTEX FE103NV2
10cm Full Range Unit¥5,500(tax included)/1pc
Steel frame
This speaker unit, the "FE103NV2", is an 10cm Full Range Unit Released in July 2022 under the FOSTEX brand as a regular model, priced at ¥5,500(tax included)/1pc. Its main specifications include an Impedance of 8ohm, a Sound Pressure Level (sensitivity) of 88.5dB/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 91.8Hz, 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 2.5g, and a Vas of 4.3L. The manufacturer-recommended enclosure type is a Back-loaded Horn.
The frame is made of Steel frame, the required baffle hole diameter is Φ93mm, it requires 4 mounting holes, the total net weight is 566g, the overall diameter of the unit is 107mm,
The FOSTEX FE-NV2 series continues FOSTEX's tradition of full-range regular units. While maintaining its bright and resonant sound, the series achieves a three-dimensional soundstage representation. It offers a relaxed low-frequency response and a refined, smooth reproduction of mid-to-high frequencies for a fulfilling music experience. Available in sizes ranging from 8cm to 20cm, the NV2 series uses a newly developed cone paper made from ultra-refined kenaf as the primary material. By blending non-wood pulp, chemical fibers, and minerals, it enhances propagation speed and rigidity. Additionally, it eliminates eyelets across all sizes to reduce harmonic distortion in the midrange. With changes in adhesives, the NV2 series further improves environmental compatibility compared to its predecessor.
Thiele&Small Parameters | Voice Coil Parameters | Mechanical Parameters |
---|---|---|
fs (f0): 91.8 Hz Qms: 5.2 Qes: 0.5 Qts (Q0): 0.46 | Z: 8 ohm Re: 7.7 ohm Le: 0.2 mH VC Diameter: 20 mm | Mms (m0): 2.5 g Cms: 1.2 mm/N Diaphragm R (a): 40 mm Bl: 4.7 N/A |
Enclosure Parameters | Other Parameters |
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SPL: 88.5 dB/W (1m) Vas: 4.3 L Baffle Hole Diameter: Φ93 mm Frequency Response: fs to 22k Hz Recommended Enclosure: Back-loaded Horn | Nom.: 5 W Mus.: 15 W Overall Diameter: 107 mm Net Weight: 566 g Limited Edition: No |