Focal SUB30KXE
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 29 Hz |
| Qts | 0.454 |
| Qes | 0.49 |
| Qms | 6.1 |
| Vas | 50 L |
| Sd | 502 cm² |
| Xmax | 10.8 mm |
| Re | 6.4 Ω |
| Bl | 22.5 T·m |
| Mms | 212.8 g |
| Pe | 800 W |
| Sensitivity | 86.9 dB |
Alignment hint
| EBP | 59 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 35.1 L |
EBP 50-100: works in either a sealed or ported alignment.
Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.
Substitute candidates
| Driver | Fs (Hz) | Qts | Vas (L) | Xmax (mm) | Sens (dB) | Fit | Notes | Compare |
|---|---|---|---|---|---|---|---|---|
| Focal E30KX | 29 = | 0.454 = | 50 = | 10.7 -0.1 | 86.9 = | close | Xmax 10.7 mm < 10.8 mm: lower excursion-limited SPL | + |
| Ground Zero GZRW 12XD-AL | 29 = | 0.451 = | 52 +2 | 9.2 -1.6 | 86.1 -0.8 | close | 500 W vs 800 W: lower power handling · Xmax 9.2 mm < 10.8 mm: lower excursion-limited SPL | + |
| Hertz Audio HX 300 | 33 +4 | 0.47 +0.02 | 49.62 -0.38 | 14 +3.2 | 87.1 +0.2 | close | 4 Ω vs 8 Ω: amp load changes · 600 W vs 800 W: lower power handling | + |
| Alpine SWR-12D2 vp | 27 -2 | 0.441 -0.01 | 46 -4 | 10 -0.8 | 87.8 +0.9 | close | Xmax 10 mm < 10.8 mm: lower excursion-limited SPL | + |
| Alpine SWR-1242D 12 | 29 = | 0.47 +0.02 | 45 -5 | 9.1 -1.7 | 85.7 -1.2 | close | Xmax 9.1 mm < 10.8 mm: lower excursion-limited SPL | + |
| Audiomobile ELITE 2212 | 28 -1 | 0.48 +0.03 | 59.46 +9.46 | 12.7 +1.9 | 85.8 -1.1 | close | 4 Ω vs 8 Ω: amp load changes · 600 W vs 800 W: lower power handling | + |
| Rockford Fosgate T0D212 | 25.3 -3.7 | 0.473 +0.02 | 55 +5 | 10.5 -0.3 | 88 +1.1 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 10.5 mm < 10.8 mm: lower excursion-limited SPL | + |
| TC Sounds LMS R12 | 28 -1 | 0.43 -0.02 | 39 -11 | 10.8 = | 87.7 +0.8 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Earthquake Sound SUBZERO-12 | 26.8 -2.2 | 0.424 -0.03 | 58.1 +8.1 | 12.7 +1.9 | 86.2 -0.7 | close | + | |
| Rockford Fosgate T1D212 | 28 -1 | 0.522 +0.07 | 55.8 +5.8 | 10.9 +0.1 | 89.1 +2.2 | close | 4 Ω vs 8 Ω: amp load changes | + |
Compare the closest 3 against the SUB30KXE →
Ranked on parameter similarity only (Qts, Fs, Vas, Xmax, sensitivity). Same nominal size required. A hint, not a simulation, model the swap before cutting or buying.
Used in enclosures (0)
No enclosure in the catalog uses this driver yet.