DigitalSignager.JP

This speaker unit, the "FE103-Sol 8Ω", is an 10cm Fullrange Limited Unit (8Ω Version) Released in April 2014 under the FOSTEX brand as a Limited-edition model, priced at ¥6,500 (tax excluded)/1pc. Its main specifications include an Impedance of 8ohm, a Sound Pressure Level (sensitivity) of 90dB/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 85Hz, and the Reproduction Frequency Response range is ensured from fs to 40k Hz. Designed as a component for back-loaded horn enclosures, an Mms (m0) of 2.5g, and a Vas of 4.29L. 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 magnet weight is 226g, the total net weight is 650g, the overall diameter of the unit is 107mm,

The FOSTEX FE-Sol series is a full-range speaker unit designed for back-loaded horn enclosures. The Sol series employs a double-layer ES cone made from dense, fine fibers. This innovative two-layer papermaking technique achieves both higher rigidity and appropriate internal damping while maintaining a lightweight design. The core layer, composed of long-fiber pulp, provides structural stiffness, while the surface layer of short-fiber pulp enhances the propagation speed on the diaphragm surface. This allows for bright and resonant midrange tones, sharp and clear high frequencies, and rich, full-bodied low frequencies.