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This speaker unit, the "FE168SS-HP", is an 16cm Fullrange Limited Unit Released in 2021, March under the FOSTEX brand as a Limited-edition model, priced at ¥38,500(tax included)/1pc. Its main specifications include an Impedance of 8ohm, a Sound Pressure Level (sensitivity) of 91dB/W (1m), and a rated power handling of 27W,

To provide reference values for enclosure design, the Lowest Resonance Frequency (fs, f0) is 54Hz, and the Reproduction Frequency Response range is ensured from fs to 25k Hz. Designed as a component for back-loaded horn enclosures, an Mms (m0) of 9.54g, and a Vas of 16.54L. The manufacturer-recommended enclosure type is a Back-loaded Horn.

The frame is made of Aluminum Die-cast Frame, the required baffle hole diameter is Φ151mm, it requires 8 mounting holes, the magnet weight is 2200g, the total net weight is 5300g, the overall diameter of the unit is 190mm, and the depth is 105mm.

The FOSTEX FE-SS-HP series is a limited-edition full-range speaker unit developed with FOSTEX's foundational acoustic philosophy and advanced proprietary technology. It features a powerful, low-distortion external magnetic circuit with dual ferrite magnets and an HP-shaped diaphragm with a cellulose nanofiber-coated surface. The diaphragm's coating improves Young's modulus, specific bending rigidity, and sound velocity while minimizing internal loss. The HP (Hyperbolic Paraboloid) diaphragm disperses resonances and ensures both lightweight and high rigidity. This series offers fast transient response, robust low frequencies, rich midrange, and extended high frequencies, providing a highly expressive and enjoyable musical experience.