Celestion TF1220
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 55.8 Hz |
| Qts | 0.389 |
| Qes | 0.441 |
| Qms | 3.327 |
| Vas | 72.79 L |
| Sd | 530 cm² |
| Xmax | 2 mm |
| Re | 5.5 Ω |
| Bl | 13.91 T·m |
| Mms | 44.51 g |
| Pe | 150 W |
| Sensitivity | 96.4 dB |
Alignment hint
| EBP | 127 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 31.6 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 |
|---|---|---|---|---|---|---|---|---|
| SICA 12 E 2.5 CS | 50 -5.8 | 0.41 +0.02 | 72.5 -0.29 | 2.8 +0.8 | 96.4 = | close | + | |
| LaVoce FSF122.02 | 57 +1.2 | 0.374 -0.02 | 69.5 -3.29 | 3 +1 | 98.4 +2 | close | + | |
| RCF L12/568H | 58.8 +3 | 0.41 +0.02 | 72 -0.79 | 4 +2 | 97.1 +0.7 | close | 100 W vs 150 W: lower power handling | + |
| Faital PRO 12PR300-8 | 54 -1.8 | 0.382 -0.01 | 73.5 +0.71 | 4.9 +2.9 | 98.2 +1.8 | close | + | |
| RCF L 12/568H | 58 +2.2 | 0.409 +0.02 | 72 -0.79 | 4 +2 | 98.1 +1.7 | close | + | |
| Eminence DELTA 12 | 55 -0.8 | 0.423 +0.03 | 81.3 +8.51 | 2.4 +0.4 | 97.7 +1.3 | close | + | |
| Audax PR330T0 | 55 -0.8 | 0.435 +0.05 | 73.7 +0.91 | 3.7 +1.7 | 97.3 +0.9 | close | + | |
| SICA 12 N 2.5 PL | 55.3 -0.5 | 0.395 +0.01 | 79.7 +6.91 | 3.5 +1.5 | 98.8 +2.4 | close | + | |
| LaVoce WSN122.50-16 | 53 -2.8 | 0.4 +0.01 | 65.84 -6.95 | 4.6 +2.6 | 96.5 +0.1 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Fertin Acoustics LB 31 SONO | 59.5 +3.7 | 0.407 +0.02 | 70 -2.79 | 4 +2 | 97.5 +1.1 | close | + |
Compare the closest 3 against the TF1220 →
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.