Esx Speaker Drivers
Esx is represented in the Load Forge catalog by 22 speaker drivers, covering 6.5" to 21". Resonance (Fs) spans 26–50.4 Hz and total Q (Qts) 0.31–0.63, 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
22
Diameter
6.5"–21"
Fs Range
26–50.4 Hz
Qts Range
0.31–0.63
All Esx Speaker Drivers — parameters & designs
| Model | Size | Fs | Qts | Vas | Price |
|---|---|---|---|---|---|
| qe622 | 6.5" | 50.4 Hz | 0.43 | 3.2 L | — |
| qe822 | 6.5" | 50.4 Hz | 0.43 | 3.2 L | — |
| QXE8D2 | 8" | 42.7 Hz | 0.32 | 6.4 L | — |
| QXS8D4 | 8" | 40.7 Hz | 0.59 | 10.1 L | — |
| SXE8D2 | 8" | 37 Hz | 0.4 | 21.4 L | — |
| sxt8d2 | 8" | 34 Hz | 0.56 | 19 L | — |
| SX1040 | 10" | 29 Hz | 0.32 | 47 L | — |
| VX10PRO | 10" | 46 Hz | 0.51 | 6.2 L | — |
| QXP104 | 11" | 33 Hz | 0.63 | 19.5 L | — |
| QE1222 | 12" | 33 Hz | 0.38 | 59 L | — |
| QE1224 | 12" | 37 Hz | 0.44 | 54 L | — |
| QXE12D2 | 12" | 34 Hz | 0.36 | 25 L | — |
| QXE15D2 | 12" | 34 Hz | 0.36 | 25 L | — |
| QXP124 | 12" | 26 Hz | 0.55 | 52.2 L | — |
| SX1240 | 12" | 28 Hz | 0.35 | 81 L | — |
| SXE12D2 | 12" | 28 Hz | 0.31 | 71.5 L | — |
| VE1222 | 12" | 36 Hz | 0.32 | 29 L | — |
| VX12PRO | 12" | 39 Hz | 0.52 | 18 L | — |
| QE1522 | 15" | 33 Hz | 0.44 | 109 L | — |
| QE1524 | 15" | 36 Hz | 0.49 | 101 L | — |
| VE1522 | 15" | 35 Hz | 0.4 | 64 L | — |
| VX21PRO | 21" | 27.4 Hz | 0.58 | 265.9 L | — |
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