Fostex Speaker Drivers
Fostex is represented in the Load Forge catalog by 31 speaker drivers, covering 3" to 15". Resonance (Fs) spans 20–149.7 Hz and total Q (Qts) 0.17–0.78, so the range covers both compact sealed alignments and large vented subwoofers. Every entry below links to its Thiele/Small parameters and calculated sealed and bass-reflex box designs.
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Drivers
31
Diameter
3"–15"
Fs Range
20–149.7 Hz
Qts Range
0.17–0.78
Price Range
47.6–590
All Fostex Speaker Drivers — parameters & designs
| Model | Size | Fs | Qts | Vas | Price |
|---|---|---|---|---|---|
| FE83A-VB | 3" | 104 Hz | 0.63 | 0.9 L | 235.60 USD |
| FE83NV | 3" | 149.7 Hz | 0.78 | 0.9 L | 47.60 EUR |
| FE83NV2 | 3" | 149.7 Hz | 0.78 | 0.9 L | 47.60 USD |
| FE103A | 4" | 79 Hz | 0.6 | 5.5 L | 210.32 EUR |
| FE103A-VB | 4" | 85 Hz | 0.55 | 4.5 L | 210.32 EUR |
| FE103NV | 4" | 91.8 Hz | 0.46 | 4.3 L | 58.20 EUR |
| FE103NV2 | 4" | 91.8 Hz | 0.46 | 4.3 L | 58.20 USD |
| FE108-Sol 2023 | 4" | 76.3 Hz | 0.34 | 5.4 L | 230.90 USD |
| FE108NS | 4" | 75 Hz | 0.32 | 5.4 L | — |
| FE108SS-HP | 4" | 81 Hz | 0.39 | 4.3 L | — |
| FW108HS | 4" | 65 Hz | 0.46 | 3.6 L | — |
| FE126NV | 4.5" | 79.1 Hz | 0.34 | 8.5 L | 76.40 EUR |
| FE126NV2 | 4.5" | 79.1 Hz | 0.34 | 8.5 L | 76.40 USD |
| FE168SS-HP | 6" | 54 Hz | 0.27 | 16.5 L | — |
| W160A-HR | 6" | 42.9 Hz | 0.31 | 13.5 L | — |
| FE166En | 6.5" | 53 Hz | 0.25 | 37 L | — |
| FE166NV | 6.5" | 49.6 Hz | 0.27 | 36.9 L | 119.60 EUR |
| FE166NV2 | 6.5" | 49.6 Hz | 0.27 | 36.9 L | 119.60 USD |
| FF165WK | 6.5" | 48 Hz | 0.38 | 12 L | 117.70 USD |
| FW168HR | 6.5" | 45 Hz | 0.38 | 14 L | 352.55 EUR |
| FW168HS | 6.5" | 42 Hz | 0.34 | 14.3 L | — |
| FE203Σ-RE | 8" | 54 Hz | 0.23 | 37.8 L | — |
| FE206NV | 8" | 44.7 Hz | 0.26 | 50.2 L | 160.40 EUR |
| FE206NV2 | 8" | 44.7 Hz | 0.26 | 50.2 L | 160.40 USD |
| FE208NS | 8" | 45 Hz | 0.22 | 54.6 L | — |
| FE208SS-HP | 8" | 32 Hz | 0.17 | 96.4 L | — |
| FF225WK | 8" | 45 Hz | 0.4 | 25 L | 168.80 USD |
| FW208HS | 8" | 40 Hz | 0.35 | 24 L | 273.40 USD |
| FW305 | 12" | 25 Hz | 0.25 | 254 L | 433.30 USD |
| FW405N | 15" | 20 Hz | 0.28 | 480 L | 590.00 EUR |
| W400A-HR | 15" | 25 Hz | 0.31 | 310 L | — |
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