Celestion CF1230BMB
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 43 Hz |
| Qts | 0.381 |
| Qes | 0.417 |
| Qms | 4.451 |
| Vas | 60.7 L |
| Sd | 530.9 cm² |
| Xmax | 5.5 mm |
| Re | 5.84 Ω |
| Bl | 18.4 T·m |
| Mms | 89.2 g |
| Pe | 350 W |
| Sensitivity | 94 dB |
Alignment hint
| EBP | 103 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 24.8 L |
EBP > 100: favours a ported (bass-reflex) 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 |
|---|---|---|---|---|---|---|---|---|
| Eminence DEFINIMAX 4012 HO | 46 +3 | 0.356 -0.03 | 59.4 -1.3 | 6.2 +0.7 | 95.2 +1.2 | close | + | |
| SICA 12 S 3 CP | 44 +1 | 0.405 +0.02 | 67.5 +6.8 | 6 +0.5 | 95 +1 | close | + | |
| 18 Sound 12NTLS3500 | 41 -2 | 0.41 +0.03 | 65 +4.3 | 7.9 +2.4 | 93.5 -0.5 | close | + | |
| 18 Sound 12NTLS3500 | 41 -2 | 0.34 -0.04 | 63 +2.3 | 7.9 +2.4 | 94.5 +0.5 | close | 4 Ω vs 8 Ω: amp load changes | + |
| SICA 12 SR 3 CP v2018 | 36.8 -6.2 | 0.387 +0.01 | 64 +3.3 | 6 +0.5 | 92.5 -1.5 | close | + | |
| Beyma POWER 12 vp | 42.7 -0.3 | 0.358 -0.02 | 53.1 -7.6 | 5.9 +0.4 | 96.2 +2.2 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Oberton 12B45V | 47.88 +4.88 | 0.354 -0.03 | 58.51 -2.19 | 10.5 +5 | 94 = | close | + | |
| SICA 12 SR 3 CP v2020 | 37.8 -5.2 | 0.402 +0.02 | 60.5 -0.2 | 5 -0.5 | 92.5 -1.5 | close | Xmax 5 mm < 5.5 mm: lower excursion-limited SPL | + |
| Faital PRO 12FH500 16 Ohms | 48 +5 | 0.367 -0.01 | 66.6 +5.9 | 7.3 +1.8 | 92.8 -1.2 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Sica 12 PFS 3 | 43 = | 0.47 +0.09 | 58.5 -2.2 | 7 +1.5 | 93.6 -0.4 | close | + |
Compare the closest 3 against the CF1230BMB →
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.