Celestion FTX1530
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 42.5 Hz |
| Qts | 0.276 |
| Qes | 0.297 |
| Qms | 3.809 |
| Vas | 172.1 L |
| Sd | 855.3 cm² |
| Xmax | 2 mm |
| Re | 5.36 Ω |
| Bl | 20.1 T·m |
| Mms | 83.6 g |
| Pe | 400 W |
| Sensitivity | 100.2 dB |
Alignment hint
| EBP | 143 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 30.9 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 |
|---|---|---|---|---|---|---|---|---|
| PHL Audio 5381M | 43 +0.5 | 0.278 = | 180 +7.9 | 4 +2 | 100.2 = | close | 300 W vs 400 W: lower power handling | + |
| DAS Audio 15HM | 43 +0.5 | 0.279 = | 178 +5.9 | 4 +2 | 100.4 +0.2 | close | + | |
| PHL Audio 5380 | 44 +1.5 | 0.278 = | 180 +7.9 | 4.4 +2.4 | 100.5 +0.3 | close | 300 W vs 400 W: lower power handling | + |
| Electro-Voice DL15ST | 42 -0.5 | 0.281 +0.01 | 195 +22.9 | 4.1 +2.1 | 100.1 -0.1 | close | + | |
| Electro-Voice DL15X v2 | 42 -0.5 | 0.281 +0.01 | 195 +22.9 | 4.1 +2.1 | 100.1 -0.1 | close | + | |
| Audax PR38LXT250 | 43.5 +1 | 0.273 = | 193 +20.9 | 4 +2 | 100.8 +0.6 | close | 250 W vs 400 W: lower power handling | + |
| SB Audience ROSSO-15W400 | 40 -2.5 | 0.282 +0.01 | 170.1 -2 | 5.3 +3.3 | 99.6 -0.6 | close | + | |
| JBL 2225H | 40 -2.5 | 0.276 = | 169.9 -2.2 | 5 +3 | 98.5 -1.7 | close | + | |
| MC Kenzie C15.200 | 40 -2.5 | 0.271 -0.01 | 161 -11.1 | 3.8 +1.8 | 98.9 -1.3 | close | 200 W vs 400 W: lower power handling | + |
| PD PD 152 | 40 -2.5 | 0.266 -0.01 | 170 -2.1 | 5.1 +3.1 | 99.3 -0.9 | close | + |
Compare the closest 3 against the FTX1530 →
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.