Celestion TF 1525
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 46 Hz |
| Qts | 0.637 |
| Qes | 0.71 |
| Qms | 6.24 |
| Vas | 162.1 L |
| Sd | 854 cm² |
| Xmax | 2.5 mm |
| Re | 5.4 Ω |
| Bl | 12.9 T·m |
| Mms | 75.5 g |
| Pe | 250 W |
| Sensitivity | 97.2 dB |
Alignment hint
| EBP | 65 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 698 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 |
|---|---|---|---|---|---|---|---|---|
| Celestion TF 1525 v2020 | 47 +1 | 0.594 -0.04 | 152.5 -9.6 | 2.5 = | 97.6 +0.4 | close | + | |
| Celestion BN15-300X | 45.9 -0.1 | 0.603 -0.03 | 153.4 -8.7 | 4 +1.5 | 96.7 -0.5 | close | + | |
| SICA LP385.50/1100WT8(Z008130) | 48 +2 | 0.65 +0.01 | 176.3 +14.2 | 3 +0.5 | 96 -1.2 | close | 150 W vs 250 W: lower power handling | + |
| Celestion BN15-400X | 44.9 -1.1 | 0.59 -0.05 | 146.5 -15.6 | 4 +1.5 | 96.4 -0.8 | close | + | |
| Fane CLASSIC 15-150 | 45 -1 | 0.74 +0.1 | 158 -4.1 | 2.5 = | 95.3 -1.9 | close | 150 W vs 250 W: lower power handling | + |
| SICA 15 BS 2.5 PL | 44 -2 | 0.552 -0.08 | 160 -2.1 | 4 +1.5 | 97.5 +0.3 | close | + | |
| SICA 15 BP 2.5 CS | 46.4 +0.4 | 0.499 -0.14 | 167.9 +5.8 | 2.5 = | 97.2 = | close | + | |
| Audax PR380T0 | 52 +6 | 0.635 = | 130 -32.1 | 3.3 +0.8 | 97.1 -0.1 | close | 150 W vs 250 W: lower power handling | + |
| Selenium 15PW7 | 43 -3 | 0.66 +0.02 | 152 -10.1 | 3 +0.5 | 93.6 -3.6 | close | + | |
| SB Audience BIANCO-15MW200 | 44 -2 | 0.586 -0.05 | 153 -9.1 | 5.2 +2.7 | 96 -1.2 | close | + |
Compare the closest 3 against the TF 1525 →
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.