Focal 33H
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 29.4 Hz |
| Qts | 0.618 |
| Qes | 0.66 |
| Qms | 9.71 |
| Vas | 124.4 L |
| Sd | 551.5 cm² |
| Xmax | 7.5 mm |
| Re | 3.4 Ω |
| Bl | 9.8 T·m |
| Mms | 100.4 g |
| Pe | 300 W |
| Sensitivity | 92.5 dB |
Alignment hint
| EBP | 45 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 402.4 L |
EBP < 50: favours a sealed (closed) 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 |
|---|---|---|---|---|---|---|---|---|
| MTX Audio T4124A | 29.3 -0.1 | 0.549 -0.07 | 118.8 -5.6 | 8.4 +0.9 | 92.9 +0.4 | close | 200 W vs 300 W: lower power handling | + |
| Visaton TIW360DS 2x4 Ohms | 30 +0.6 | 0.675 +0.06 | 114 -10.4 | 11.7 +4.2 | 92 -0.5 | close | + | |
| Pioneer VINTAGE VERSION | 25.7 -3.7 | 0.556 -0.06 | 134.2 +9.8 | 7.2 -0.3 | 92.1 -0.4 | close | 100 W vs 300 W: lower power handling · Xmax 7.2 mm < 7.5 mm: lower excursion-limited SPL | + |
| STX W.30.200.8.MC | 31 +1.6 | 0.622 = | 148 +23.6 | 6.2 -1.3 | 91.3 -1.2 | close | 8 Ω vs 4 Ω: amp load changes · 100 W vs 300 W: lower power handling · Xmax 6.2 mm < 7.5 mm: lower excursion-limited SPL | + |
| Pioneer TS-W300R | 29.5 +0.1 | 0.646 +0.03 | 93.2 -31.2 | 6.8 -0.7 | 91.6 -0.9 | close | 150 W vs 300 W: lower power handling · Xmax 6.8 mm < 7.5 mm: lower excursion-limited SPL | + |
| Infinity 120W.IB | 32 +2.6 | 0.527 -0.09 | 127 +2.6 | 8.1 +0.6 | 94.9 +2.4 | close | 200 W vs 300 W: lower power handling | + |
| JBL GT3-12 | 28.2 -1.2 | 0.541 -0.08 | 100.5 -23.9 | 8.2 +0.7 | 91.8 -0.7 | usable | 225 W vs 300 W: lower power handling | + |
| Peerless SLS12 830669 v2012 | 31 +1.6 | 0.536 -0.08 | 132.4 +8 | 6.1 -1.4 | 91.9 -0.6 | usable | 8 Ω vs 4 Ω: amp load changes · 100 W vs 300 W: lower power handling · Xmax 6.1 mm < 7.5 mm: lower excursion-limited SPL | + |
| JBL P1200 | 30 +0.6 | 0.45 -0.17 | 123 -1.4 | 7.8 +0.3 | 92.8 +0.3 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Beyma 12"BR70 | 31 +1.6 | 0.5 -0.12 | 142 +17.6 | 8 +0.5 | 93 +0.5 | usable | 8 Ω vs 4 Ω: amp load changes · 125 W vs 300 W: lower power handling | + |
Compare the closest 3 against the 33H →
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.