Precision Devices PD 915
Thiele-Small parameters
| Nominal size | 15" |
|---|---|
| Impedance | 8 Ω |
| Fs | 42.9 Hz |
| Qts | 0.279 |
| Qes | 0.29 |
| Qms | 7.31 |
| Vas | 129.5 L |
| Sd | 881.4 cm² |
| Xmax | 5.5 mm |
| Re | 5.77 Ω |
| Bl | 24.9 T·m |
| Mms | 115.7 g |
| Pe | 600 W |
| Sensitivity | 98.9 dB |
Alignment hint
| EBP | 148 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 23.9 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 |
|---|---|---|---|---|---|---|---|---|
| PD PD 915 | 42.9 = | 0.279 = | 129.5 = | 5.5 = | 98.9 = | close | + | |
| Fane COLOSSUS 15B600 | 42 -0.9 | 0.278 = | 139 +9.5 | 5.7 +0.2 | 98.7 -0.2 | close | + | |
| Precision Devices 900 Series PD915 | 42.9 = | 0.28 = | 129.52 +0.02 | 6 +0.5 | 97 -1.9 | close | + | |
| 18 Sound 15LW1402 | 42 -0.9 | 0.28 = | 126 -3.5 | 7 +1.5 | 98.4 -0.5 | close | + | |
| B&C 14 CXN 6 | 45 +2.1 | 0.28 = | 131 +1.5 | 5.6 +0.1 | 100 +1.1 | close | 400 W vs 600 W: lower power handling | + |
| PHL Audio 5231 | 44 +1.1 | 0.277 = | 127 -2.5 | 5 -0.5 | 99.1 +0.2 | close | Xmax 5 mm < 5.5 mm: lower excursion-limited SPL | + |
| Fane COLOSSUS 15-750BMN | 45 +2.1 | 0.27 -0.01 | 127 -2.5 | 5.8 +0.3 | 99.6 +0.7 | close | + | |
| 18 Sound 15LW1410 | 42 -0.9 | 0.27 -0.01 | 131 +1.5 | 8.5 +3 | 98.5 -0.4 | close | + | |
| RCF MB 15H401 | 44 +1.1 | 0.3 +0.02 | 121 -8.5 | 5.7 +0.2 | 98.8 -0.1 | close | + | |
| PD PD 1550 v2015 | 46.2 +3.3 | 0.294 +0.01 | 126.4 -3.1 | 5.3 -0.2 | 99 +0.1 | close | Xmax 5.3 mm < 5.5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the PD 915 →
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.