Celestion FTR15-4080F
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 38 Hz |
| Qts | 0.249 |
| Qes | 0.273 |
| Qms | 2.9 |
| Vas | 163.1 L |
| Sd | 848 cm² |
| Xmax | 6 mm |
| Re | 5.67 Ω |
| Bl | 23.5 T·m |
| Mms | 111.7 g |
| Pe | 600 W |
| Sensitivity | 97 dB |
Alignment hint
| EBP | 139 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 23.1 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 |
|---|---|---|---|---|---|---|---|---|
| RCF L15P400 | 36 -2 | 0.25 = | 160 -3.1 | 8 +2 | 96.3 -0.7 | close | 400 W vs 600 W: lower power handling | + |
| 18 Sound 15NLW9300 | 39 +1 | 0.26 +0.01 | 170 +6.9 | 8 +2 | 97 = | close | + | |
| RCF LF 15G400 | 37 -1 | 0.247 = | 164 +0.9 | 6.9 +0.9 | 99.1 +2.1 | close | + | |
| RCF LF 15X400 | 37 -1 | 0.247 = | 164 +0.9 | 7 +1 | 99.1 +2.1 | close | + | |
| B&C 15 PS 76 | 38 = | 0.266 +0.02 | 164 +0.9 | 6.3 +0.3 | 98.9 +1.9 | close | + | |
| B&C 15PS76-8 | 38 = | 0.26 +0.01 | 164 +0.9 | 7.5 +1.5 | 99 +2 | close | + | |
| SICA 15 K3 PL-8 | 40 +2 | 0.27 +0.02 | 166.1 +3 | 6.5 +0.5 | 97.6 +0.6 | close | 400 W vs 600 W: lower power handling | + |
| BMS 15N830V2 | 39.5 +1.5 | 0.27 +0.02 | 159 -4.1 | 8 +2 | 97.1 +0.1 | close | 6 Ω vs 8 Ω: amp load changes | + |
| PHL Audio 5050 | 38 = | 0.254 +0.01 | 180 +16.9 | 5.9 -0.1 | 99.2 +2.2 | close | Xmax 5.9 mm < 6 mm: lower excursion-limited SPL | + |
| PD PD 158 | 39.9 +1.9 | 0.241 -0.01 | 161.9 -1.2 | 5.9 -0.1 | 99.4 +2.4 | close | Xmax 5.9 mm < 6 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the FTR15-4080F →
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.