Speaker Unit Details
FOSTEX FE88ES-R
8.5cm Full Range Limited Unit
Aluminum Die-cast Frame
This speaker unit, the "FE88ES-R", is an 8.5cm Full Range Limited Unit Released in March 2004 under the FOSTEX brand as a Limited-edition model, Its main specifications include an Impedance of 8ohm, a Sound Pressure Level (sensitivity) of 88dB/W (1m), and a rated power handling of 6W, with a maximum power capacity of up to 18W.
To provide reference values for enclosure design, the Lowest Resonance Frequency (fs, f0) is 106Hz, and the Reproduction Frequency Response range is ensured from f0 to 40k Hz. Designed as a component for back-loaded horn enclosures, an Mms (m0) of 1.9g. The manufacturer-recommended enclosure type is a D-101S『スーパースワン』.
The frame is made of Aluminum Die-cast Frame, the required baffle hole diameter is Φ90mm, it requires 4 mounting holes, the magnet weight is 584g, the total net weight is 1130g, the overall diameter of the unit is 112mm, and the depth is 57mm.
| Thiele&Small Parameters | Voice Coil Parameters | Mechanical Parameters |
|---|---|---|
fs (f0): 106 Hz Qts (Q0): 0.46 | Z: 8 ohm | Mms (m0): 1.9 g Diaphragm R (a): 34.25 mm |
| Enclosure Parameters | Other Parameters |
|---|---|
SPL: 88 dB/W (1m) Baffle Hole Diameter: Φ90 mm Depth: 57 mm Frequency Response: f0 to 40k Hz Recommended Enclosure: D-101S『スーパースワン』 | Nom.: 6 W Mus.: 18 W Overall Diameter: 112 mm Magnet Weight: 584 g Net Weight: 1130 g Limited Edition: Yes |
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