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Speaker Unit Details
FOSTEX FE166NV2

FOSTEX FE166NV2FOSTEX FE166NV2

16cm Fullrange Unit¥9,900(tax included)/1pc
Steel frame

This speaker unit, the "FE166NV2", is an 16cm Fullrange Unit Released in April 2023 under the FOSTEX brand as a regular model, priced at ¥9,900(tax included)/1pc. Its main specifications include an Impedance of 8ohm, a Sound Pressure Level (sensitivity) of 94dB/W (1m), and a rated power handling of 22W, with a maximum power capacity of up to 65W.

To provide reference values for enclosure design, the Lowest Resonance Frequency (fs, f0) is 49.6Hz, and the Reproduction Frequency Response range is ensured from fs to 20k Hz. Designed as a component for back-loaded horn enclosures, an Mms (m0) of 7g, and a Vas of 36.9L. The manufacturer-recommended enclosure type is a Back-loaded Horn.

The frame is made of Steel frame, the required baffle hole diameter is Φ146mm, it requires 4 mounting holes, the total net weight is 1600g, the overall diameter of the unit is 166mm,

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 ParametersVoice Coil ParametersMechanical Parameters

fs (f0): 49.6 Hz

Qms: 7.88

Qes: 0.28

Qts (Q0): 0.27

Z: 8 ohm

Re: 7.8 ohm

Le: 0.8 mH

VC Diameter: 25 mm

Mms (m0): 7 g

Cms: 1.5 mm/N

Diaphragm R (a): 65 mm

Bl: 7.7 N/A

Enclosure ParametersOther Parameters

SPL: 94 dB/W (1m)

Vas: 36.9 L

Baffle Hole Diameter: Φ146 mm

Frequency Response: fs to 20k Hz

Recommended Enclosure: Back-loaded Horn

Nom.: 22 W

Mus.: 65 W

Overall Diameter: 166 mm

Net Weight: 1600 g

Limited Edition: No

Images

frequency

FOSTEX FE166NV2 - frequency

outline

FOSTEX FE166NV2 - outline

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